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Congratulations on the company new website built.
Please visit
2008-2-19
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Congratulations on company’s successfully applied the 103rd Canton Fair. The booth No. is No.5.1F32.
Company Logo / Booth / Catalog
 
Bag
2008-4-17
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Heated atmosphere on the spot of the Fair around our booth. Friendly communication between us and the buyers.
 
2008-4-19
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Heated atmosphere on the spot of the Fair around our booth 2
 
2008-4-19
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Heated atmosphere on the spot of the Fair around our booth 3
 
2008-4-19
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Shenzhen Pengyuan Electronics Co., Ltd is going to take part in China Sourcing Fair (HK) in Hong Kong from 2008-10-12 to 2008-10-15 with the Booth No. 8G14. That time many new products will be displayed, and we warmly welcome our dearest friends to visit our booth.
2008-9-10
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Shenzhen Pengyuan Electronics Co., Ltd is going to take part in the 104th Canton Fair from 2008-10-15 to 2008-10-19 with the Booth No. 4.2N19. That time many new products will be displayed, and we warmly welcome our dearest friends to visit our booth.
2008-9-14
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Our latest USB Flash Drive products have passed CE certification, have stable performance, with amazing high Read/ Write speed. (26M/16M/S)
2008-9-15
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Welcome to visit us in China Sourcing Fair between Oct. 12 and Oct. 15. You will find many new models here.
Full View
Turntable
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Welcome to visit us in China Sourcing Fair between Oct. 12 and Oct. 15. You will find many new models here.
Full View
Turntable
2008-10-11
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Corner of the booth
USB Wall
2008-10-11
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Another booth in Guangzhou. Welcome to visit us, you will find suprise here.
2008-10-14
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2008-10-14
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Under the efforts of all staffs, the company holds the principle of Quality First, Service Supreme, has passed the SGS test on November 18, 2008, and got relevant certificate issued by SGS.
The company will make it as a milestone, and continue offering the customers best quality products and most prompt services. We warmly welcome you to visit us, comment and negotiate.
2008-11-28
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new silicon usb models
2008-12-15
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PY-U-190
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PY-U-194
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PY-U-193
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End-customer’s purchase willingness in early July is cautious since July is traditionally regarded as the slow season for NAND Flash main products such as memory card and UFD. Inventory level for some card makers is still above one month. NAND Flash vendors slightly lower mainstream MLC NAND Flash contract price to enhance the purchase volume. Therefore, 1HJuly contract price of mainstream MLC NAND Flash slightly decreased 1%-5%.
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16Gb MLC average contract price has dropped 7% to US$ 4 in 1HJuly from US$ 4.3 in May while 32Gb MLC average contract price has decreased 12% to US$ 6.64 in 1HJuly from US$ 7.56 during the same period. 32Gb MLC contract price showed the bigger downward pricing trend since most vendors already migrated to more advanced process technologies to produce high-density products. Therefore, price cut in promotion for 32Gb MLC was larger than 16Gb MLC over the past two months.
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Shenzhen Pengyuan Electronics Co., Ltd is going to take part in China Sourcing Fair (HK) in Hong Kong from 2009-10-12 to 2009-10-15 with Booth No. 8H28. That time many new products will be displayed, and we warmly welcome our dearest friends to visit our booth.
2009-9-8
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Portable Media Player MP3 players have become the consumer electronics industry, one of the fastest growing market segment, according to iSuppli's forecast, from 2005 to 2011, its total shipments are expected to double. By 2011, worldwide shipments of PMP/MP3 to rise to 268.6 million units, compared with 128.7 million units in 2005, a compound annual average growth rate of 13%! . iSuppli predicts that the total shipments in 2007 players will rise to 2.169 units, compared with 178.1 million units in 2006, an increase of 21.8%.
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The 106th Caton Fair will be held as scheduled, at the appointed time the company will provide for the global merchant more direct-viewing, more comprehensive products and technology demonstrated ,welcome various merchants to consult and discuss.
Address: China Import-export goods Trade fair Exhibition hall (number 380,yuejiang middle road,haizhu district,Guangzhou China) 10.3j08-09. Time: October.15th – 18th,2009
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Digital Video Broadcasting (DVB) is a suite of internationally accepted open standards for digital television. DVB standards are maintained by the DVB Project, an international industry consortium with more than 270 members, and they are published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU). The interaction of the DVB sub-standards is described in the DVB Cookbook.[1] Many aspects of DVB are patented, including elements of the MPEG video coding and audio coding.
[edit]Transmission
DVB systems distribute data using a variety of approaches, including by satellite (DVB-S,DVB-S2 and DVB-SH; also DVB-SMATV for distribution via SMATV); cable (DVB-C, DVB-C2);terrestrial television (DVB-T, DVB-T2) and digital terrestrial television for handhelds(DVB-H,DVB-SH); and via microwave using DTT (DVB-MT), the MMDS (DVB-MC), and/or MVDSstandards (DVB-MS).
These standards define the physical layer and data link layer of the distribution system. Devices interact with the physical layer via a synchronous parallel interface (SPI), synchronous serial interface (SSI), or asynchronous serial interface (ASI). All data is transmitted in MPEG-2 transport streams with some additional constraints (DVB-MPEG). A standard for temporally-compressed distribution to mobile devices (DVB-H) was published in November 2004.
These distribution systems differ mainly in the modulation schemes used and error correcting codes used, due to the different technical constraints. DVB-S (SHF) uses QPSK, 8PSK or 16-QAM. DVB-S2 uses QPSK, 8PSK, 16APSK or 32APSK, at the broadcasters decision. QPSK and 8PSK are the only versions regularly used. DVB-C (VHF/UHF) uses QAM: 16-QAM, 32-QAM, 64-QAM, 128-QAM or 256-QAM. Lastly, DVB-T (VHF/UHF) uses 16-QAM or 64-QAM (or QPSK) in combination with COFDM and can support hierarchical modulation.
The DVB-T2 specification was approved by the DVB Steering Board in June 2008 and sent to ETSI for adoption as a formal standard. ETSI is expected to publish the standard in July 2009.[2][dated info]
The DVB-T2 standard will give more-robust TV reception and increase the possible bit-rate by over 30% for single transmitters (as in the UK) and is expected to increase the max bit-rate by over 50% in large single-frequency networks (as in Germany, Sweden).
[edit]Content
Besides audio and video transmission, DVB also defines data connections (DVB-DATA - EN 301 192) with return channels (DVB-RC) for several media (DECT, GSM, PSTN/ISDN, satellite etc.) and protocols (DVB-IPTV: Internet Protocol; DVB-NPI: network protocol independent).
Older technologies such as teletext (DVB-TXT) and vertical blanking interval data (DVB-VBI) are also supported by the standards to ease conversion. However, for many applications more advanced alternatives like DVB-SUB for sub-titling are available.
[edit]Encryption and metadata
The conditional access system (DVB-CA) defines a Common Scrambling Algorithm (DVB-CSA) and a physical Common Interface (DVB-CI) for accessing scrambled content. DVB-CA providers develop their wholly proprietary conditional access systems with reference to these specifications. Multiple simultaneous CA systems can be assigned to a scrambled DVB program stream providing operational and commercial flexibility for the service provider.
DVB is also developing a Content Protection and Copy Management system for protecting content after it has been received (DVB-CPCM), which is intended to allow flexible use of recorded content on a home network or beyond, while preventing unconstrained sharing on the Internet. DVB-CPCM has been the source of much controversy in the popular press and It is said that CPCM is the DVB's answer to the failed American Broadcast Flag.[3]
DVB transports include metadata called Service Information (DVB-SI, ETSI EN 300 468, ETSI TR 101 211) that links the various elementary streams into coherent programs and provides human-readable descriptions for electronic program guides as well as for automatic searching and filtering.
Recently, DVB has adopted a profile of the metadata defined by the TV-Anytime Forum (DVB-TVA, ETSI TS 102323). This is an XML Schema based technology and the DVB profile is tailored for enhanced Personal Digital Recorders. DVB lately also started an activity to develop a service for IPTV (DVB-IPI, ETSI TR 102033, ETSI TS 102034, ETSI TS 102814) which also includes metadata definitions for a broadband content guide (DVB-BCG, ETSI TS 102 539).
[edit]Software platform
The DVB Multimedia Home Platform (DVB-MHP) defines a Java-based platform for the development of consumer video system applications. In addition to providing abstractions for many DVB and MPEG-2 concepts, it provides interfaces for other features like network card control, application download, and layered graphics.
[edit]Return channel
DVB has standardised a number of return channels that work together with DVB(-S/T/C) to create bi-directionalcommunication. RCS is short for Return Channel Satellite, and specifies return channels in C, Ku and Ka frequency bands with return bandwidth of up to 2 Mbit/s. DVB-RCT is short for Return Channel Terrestrial, specified by ETSI EN 301958.
[edit]Adoption
DVB-S and DVB-C were ratified in 1994. DVB-T was ratified in early 1997. The first commercial DVB-T broadcasts were performed by the United Kingdom's Digital TV Group in late 1998. In 2003 Berlin, Germany was the first area to completely stop broadcasting analog TV signals. Many European countries aim to be fully covered with digital television by 2010 and switch off PAL/SECAM services by then.
As of 2005, DVB-T television sets are not significantly more expensive than analog television sets. Most popular in Europe are the set-top boxes that enable DVB-T to be received through an ordinary analogue television, with the price dropping remarkably in 2007.
In its origin Europe, in Australia, South Africa and India DVB is used throughout the areas it covers or is at least decided to be. This also holds true for cable and satellite in most Asian, African and many South American countries. Many of these have not yet selected a format for digital terrestrial broadcasts (DTTV) and a few (Canada, Mexico andSouth Korea) chose ATSC instead of DVB-T.
[edit]Denmark
In Denmark, DVB-T will replace the analog transmission system for TV by 1 November 2009. Danish national digital TV transmission has been outsourced to the company Boxer TV A/S (Boxer TV), acting as gatekeeper organization for terrestrial TV transmission in Denmark.[4][5]
[edit]Hong Kong
In Hong Kong, several cable TV operators such as TVB Pay Vision and Cable TV have already started using DVB-S or DVB-C. The government however has adopted the DMB-T/H standard, developed in mainland China, for its digital terrestrial broadcasting services which has started since 31 December 2007.[6]
DVB-T broadcasts using H.264 will commence in Israel in July 2009. Analog broadcasts will be turned off 18 months after the start of DVB-T transmission. On 01 June 2009 the broadcast trial started and the launch will be on 01 August 2009.
With the exception of Sky PerfecTV!, Japan uses different formats in all areas (ISDB), which are however quite similar to their DVB counterparts. SkyPerfect is a satellite provider using DVB on their 124 and 128 degrees east satellites. Their satellite at 110 degrees east does not use DVB, however.
[edit]Malaysia
In Malaysia, a new Pay-TV station MiTV began service in September 2005 using DVB-IPTV technology while lone satellite programming provider ASTRO has been transmitting in DVB-S since its inception in 1996. Free-to-air DVB-T trials began in late 2006 with a simulcast of both TV1 and TV2 plus a new channel called RTM3/RTMi. In April 2007, RTM announced that the outcome of the test is favourable and expects DVB-T to go public by the end of 2007. However, the system did not go public as planned. As of 2008, the trial digital line-up has expanded to include a Music Television channel called Muzik Aktif, and a Sports channel called Arena, with a news channel called Berita Aktif planned for inclusion in the extended trials soon. Also, High Definition trials were performed during the Beijing Olympics and the outcome was also favourable. It has been announced that the system will go public sometime in 2009.
As of 2009, MiTV has closed down, changed its name to U-Television, and announced that they are changing to use scrambled DVB-T upon relaunch instead of the DVB-IPTV system used prior to shutting down.
Analogue shut-off date is also announced to be sometime in 2015.
In Norway, DVB broadcasting is marketed under RiksTV (encrypted pay channels) and NRK (unecrypted public channels). DVB-T broadcasting via the terrestrial network began in November 2007, and has subsequently been rolled out one part of the country at a time. The Norwegian implementation of DVB-T is different from most others, as it uses H.264 withHE-AAC audio encoding, while most other countries have adapted the less recent MPEG-2 standard. Notably most DVB software for PC have problems with this, though in late 2007 software compatible software has been released, like DVBViewer using the libfaad2 library. Sony has released several HDTVs (Bravia W3000, X3000, X3500, E4000, V4500, W4000, W4500, X4500) that support Norway's DVB-T implementation without use of a separate set-top box, and Sagem ITD91 HD, Grundig DTR 8720 STBs are others.
[edit]New Zealand
In New Zealand, DVB broadcasting is marketed under the Freeview brand name. SD MPEG-2 DVB-S broadcasts via satellite began on 2 May 2007 and DVB-T (terrestrial) broadcasts began April 2008 broadcasting in HD H.264 video with HE-AAC audio.
[edit]North America
In North America, DVB-S is often used in signal compression and encoding of digital satellite communications alongsideHughes DSS. Unlike Motorola's DigiCipher 2 standard, DVB has a wider adoption in terms of the number of manufacturers of receivers. Cable operators either use DVB-C or OpenCable. Terrestrial HDTV broadcasts use ATSC digital encoding with 8VSB modulation instead of DVB-T's COFDM.
Canada, Mexico, El Salvador, Honduras and the United States have chosen ATSC instead of DVB-T.
[edit]Portugal
Portugal follows the DVB-T implementation, using H.264 with MPEG4 audio encoding. It is live since April 29, 2009 and the switch-off date for all analogic signals is April 26, 2012.
In Taiwan, cable television is broadcasted using DVB-C. The government also adopted DVB-T for its digital terrestrial broadcasting services.
[edit]DVB compliant products
Companies that manufacture a product which is compliant to one or more DVB standards have the option of registering a Declaration of Conformity for that product. Wherever the DVB trademark is used in relation to a product – be it a broadcast, a service, an application or equipment – the product must be registered with the DVB Project Office.
[edit]See also
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Pengyuan celebrate the successful conclusion of the two sessions, your support is our motivation
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The largest component of a country's balance of payments. It is the difference between exports and imports. Debit items include imports, foreign aid, domestic spending abroad and domestic investments abroad. Credit items include exports, foreign spending in the domestic economy, and foreign investments in the domestic economy.
A country has a trade deficit if they import more than they export, the opposite scenario is a trade surplus. |
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A Bill of Lading is the transportation contract between a carrier and the owner of the goods. The carrier issues it and can be negotiable and non- negotiable. Negotiable means that the goods can be traded while in transit.
Content of the Bill of Lading/ Airway Bill Both the Bill of Lading and the Airway Bill contain the following information:
Name of the ship/ carrier;
Name of the beneficial L/ C bank;
Description of the goods (General description);
Indication of Full Container Load (FCL) or Less Container Load (LCL) clauses;
Pre- paid freight or freight collect clauses.
The Master Bill of Lading/ Airway Bill is exchanged between shipping companies while the House
Bill of Lading/ Airway Bill includes the names of the exporter and the importer.
The originals of the Master and the House must be sent to the importers clearing agent, through the shipping company. |
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It is a certificate provided by the chamber in the country of origin that shows the manufacturing or producing country of the export intended commodity and the amount of the added value tax (VAT). Therefore, it is considered a necessary document to calculate the charges levied or the preference treatment given. |
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A commercial invoice is a bill for the goods from the seller to the buyer. Commercial invoices are utilized by customs officials to determine the value of the goods in order to assess customs duties and taxes.
In general there is no standard form for a commercial invoice although they tend to contain many of the following features:
.seller's contact information
.buyer's contact information
.consignee's contact information (if it is different from the buyers)
.invoice date
.a unique invoice number
.sales terms (usually in incoterm format)
.payment terms
.currency of sale
.full quantities and description of merchandise (Generally this includes unit price and total price. Product descriptions should be consistent with the buyer's purchase order. Including the Harmonized System commodity codes can be helpful, especially in countries that are WTO members.)
.certification that the invoice is correct (Standard language is "We certify that this invoice is true and correct." |
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A service charge assessed by an agent in return for arranging the purchase or sale of a security or real estate. The commission must be fair and reasonable, considering all the relevant factors of the transaction. Commissions vary widely from broker to broker.
The brokerage with the lowest commissions is not necessarily the best one - you get what you pay for. Discount brokerages offer no advice, which can prove to be troublesome for many rookie investors. On the other hand, full-service brokerages offer a more personalized service, but commissions are much higher. |
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Any bulk good traded on an exchange or in the cash market.
Some examples include grain, oats, gold, oil, beef, silver, and natural gas. |
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A customs broker performs transactions at ports on behalf of other parties. In other words, an importer, hires a customs broker to guide their goods into a country. Like the forwarder, the broker will recommend efficient means for clearing goods through the maze of customs entry protocol. The broker can also estimate the landed costs for shipments entering the country. U.S. exporters typically do not book shipments directly with a foreign customs broker, because freight forwarders often partner with customs brokers overseas who will clear goods that the forwarder ships to the overseas port. Conversely, those same foreign customs brokers contract the services of the domestic freight forwarder when the goods are headed in the opposite direction.
The transactions negotiated for the importer will include the entry of goods into a customs territory, payment of taxes and duties and duty drawback or refunds of any kind. Furthermore, the broker has knowledge of regulations not only from the corresponding customs authority, but also from other regulating agencies involved in imports. |
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Literally translated as "great force," this clause is included in contracts to remove liability for unforeseen events restricting participants from fulfilling obligations. |
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To comply with export documentation and shipping requirements, many exporters utilize a freight forwarder to act as their shipping agent. The forwarder advises and assists clients on how to move goods most efficiently from one destination to another. A forwarder’s extensive knowledge of documentation requirements, regulations, transportation costs and banking practices can ease the exporting process for many companies. The Federal Maritime Commission (http://www.fmc.gov) licenses U.S. forwarders for ocean operations, and some U.S. forwarders are affiliated with global organizations like the International Air Transport Association |
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Harmonized System (HS) numbers are classification numbers assigned to individual products. The HS number is used by Customs authorities around the world to identify products for the application of duties and taxes. These numbers are typically 6 to 10 digits long. The first 6 digits are standardized worldwide, while additional numbers are used by some governments to further distinguish products in certain categories. |
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A document issued by a bank which guarantees the payment of a customer's drafts for a specified period and up to a specified amount.
Irrevocable Letter of Credit
A letter of credit that cannot be canceled. This guarantees that a buyer's payment to a seller will be received on time and for the correct amount.
Sight Letter of Credit
A letter of credit that is payable once it is presented along with the necessary documents. |
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The packing list indicates the gross and net weight of the cargo, invoice number and the importers name. It clearly states all products sent by the exporter as well as the number of pallets, boxes, the contents of each box and the type of products, their quality and specifications. |
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A written, dated, and signed two-party instrument containing an unconditional promise by the maker to pay a definite sum of money to a payee on demand or at a specified future date. |
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The science that describes the management of money, banking, credit, investments, and assets for international trade transactions. |
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The science that describes the management of money, banking, credit, investments, and assets for international trade transactions. |
| 1 CFR(cost and freight) |
| 2 T/T(telegraphic transfer) |
| 3 D/P(document against payment) |
| 4 D/A (document against acceptance) |
| 5 C.O (certificate of origin) |
6 G.S.P.
(generalized system of preferences) |
| 7 CTN/CTNS(carton/cartons) |
| 8 PCE/PCS(piece/pieces) |
| 9 DL/DLS(dollar/dollars) |
| 10 DOZ/DZ(dozen) | |
| 11 PKG(package) |
| 12 WT(weight) |
| 13 G.W.(gross weight) |
| 14 N.W.(net weight) |
15 C/D
(customs declaration) |
| 16 EA(each) |
| 17 W (with) |
| 18 w/o(without) |
| 19 FAC(facsimile) |
| 20 IMP(import) | |
| 21 EXP(export) |
| 22 MAX (maximum) |
| 23 MIN (minimum) |
| 24 M 或MED (medium) |
| 25 M/V(merchant vessel) |
| 26 S.S(steamship) |
| 27 MT或M/T(metric ton) |
| 28 DOC (document) |
| 29 INT(international) |
| 30 P/L (packing list) | |
| 31 INV (invoice) |
| 32 PCT (percent) |
| 33 REF(reference) |
| 34 EMS(express mail special) |
| 35 STL.(style) |
| 36 T或LTX或TX(telex) |
| 37 RMB(renminbi) |
| 38 S/M(shipping marks) |
| 39 PR或PRC(price) |
| 40 PUR (purchase) | |
| 41 S/C(sales contract) |
| 42 L/C(letter of credit) |
| 43 B/L(bill of lading) |
| 44 FOB(free on board) |
| 45 CIF(cost,insurance & freight) | |
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Sports MP3
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Waterproof MP3
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From Wikipedia, the free encyclopedia
Image resolution describes the detail an image holds. The term applies to digital images, film images, and other types of images. Higher resolution means more image detail.
Image resolution can be measured in various ways. Basically, resolution quantifies how close lines can be to each other and still be visibly resolved. Resolution units can be tied to physical sizes (e.g. lines per mm, lines per inch), to the overall size of a picture (lines per picture height, also known simply as lines, or TV lines), or to angular subtense. Line pairs are often used instead of lines; a line pair comprises a dark line and an adjacent light line. A Line (or TV line, TVL) is either a dark line or a light lines. A resolution of 10 lines per millimeter means 5 dark lines alternating with 5 light lines, or 5 line pairs per millimeter (5 LP/mm). Photographic lens and film resolution are most often quoted in line pairs per millimeter.
[edit] Resolution of digital images
The resolution of digital images can be described in many different ways.
[edit] Pixel resolution
The term resolution is often used as a pixel count in digital imaging, even though American, Japanese, and international standards specify that it should not be so used, at least in the digital camera field. An image of N pixels high by M pixels wide can have any resolution less than N lines per picture height, or N TV lines. But when the pixel counts are referred to as resolution, the convention is to describe the pixel resolution with the set of two positive integer numbers, where the first number is the number of pixel columns (width) and the second is the number of pixel rows (height), for example as 640 by 480. Another popular convention is to cite resolution as the total number of pixels in the image, typically given as number of megapixels, which can be calculated by multiplying pixel columns by pixel rows and dividing by one million. Other conventions include describing pixels per length unit or pixels per area unit, such as pixels per inch or per square inch. None of these pixel resolutions are true resolutions, but they are widely referred to as such; they serve as upper bounds on image resolution.
Below is an illustration of how the same image might appear at different pixel resolutions, if the pixels were poorly rendered as sharp squares (normally, a smooth image reconstruction from pixels would be preferred, but for illustration of pixels, the sharp squares make the point better).
An image that is 2048 pixels in width and 1536 pixels in height has a total of 2048×1536 = 3,145,728 pixels or 3.1 megapixels. One could refer to it as 2048 by 1536 or a 3.1-megapixel image.
[edit] Spatial resolution
The measure of how closely lines can be resolved in an image is called spatial resolution, and it depends on properties of the system creating the image, not just the pixel resolution in pixels per inch (ppi). For practical purposes the clarity of the image is decided by its spatial resolution, not the number of pixels in an image. In effect, spatial resolution refers to the number of independent pixel values per unit length.
The spatial resolution of computer monitors is generally 72 to 100 lines per inch, corresponding to pixel resolutions of 72 to 100 ppi. With scanners, optical resolution is sometimes used to distinguish spatial resolution from the number of pixels per inch.
In geographic information systems (GISs), spatial resolution is measured by the ground sample distance (GSD) of an image, the pixel spacing on the Earth's surface.
In astronomy one often measures spatial resolution in data points per arcsecond subtended at the point of observation, since the physical distance between objects in the image depends on their distance away and this varies widely with the object of interest. On the other hand, in electron microscopy, line or fringe resolution refers to the minimum separation detectable between adjacent parallel lines (e.g. between planes of atoms), while point resolution instead refers to the minimum separation between adjacent points that can be both detected and interpreted e.g. as adjacent columns of atoms, for instance. The former often helps one detect periodicity in specimens, while the latter (although more difficult to achieve) is key to visualizing how individual atoms interact.
[edit] Spectral resolution
Color images distinguish light of different spectra. Multi-spectral images resolve even finer differences of spectrum or wavelength than is needed to reproduce color. That is, they can have higher spectral resolution. that is the strength of each band that is created ( Lihongeni mulama: 2008)
[edit] Temporal resolution
Movie cameras and high-speed cameras can resolve events at different points in time. The time resolution used for movies is usually 15 to 30 frames per second ( frame/s), while high-speed cameras may resolve 100 to 1000 frame/s, or even more.
Many cameras and displays offset the color components relative to each other or mix up temporal with spatial resolution:
[edit] Radiometric resolution
Main article: Color depthRadiometric resolution determines how finely a system can represent or distinguish differences of intensity, and is usually expressed as a number of levels or a number of bits, for example 8 bits or 256 levels which is typical of computer image files. The higher the radiometric resolution, the better subtle differences of intensity or reflectivity can be represented, at least in theory. In practice, the effective radiometric resolution is typically limited by the noise level, rather than by the number of bits of representation.
[edit] Resolution in various media
This is a list of modern-day, digital-type measurements (and traditional, analog horizontal resolutions) for various media. The list only includes popular formats, not rare formats, and all values are approximate (rounded to the nearest 10), since the actual quality can vary machine-to-machine or tape-to-tape. For ease-of-comparison, all values are for the NTSC system. (For PAL systems, replace 480 with 576.)
- 350×240 (260 lines): Video CD
- 330×480 (250 lines): Umatic, Betamax, VHS, Video8
- 400×480 (300 lines): Super Betamax, Betacam (pro)
- 440×480 (330 lines): analog broadcast
- 560×480 (420 lines): LaserDisc, Super VHS, Hi8
- 670×480 (500 lines): Enhanced Definition Betamax
- Digital:
- 720×480 (520 lines): D-VHS, DVD, miniDV, Digital8, Digital Betacam (pro)
- 720×480 (400 lines): Widescreen DVD (anamorphic)
- 1280×720 (720 lines): D-VHS, HD DVD, Blu-ray, HDV (miniDV)
- 1440×1080 (810 lines): HDV (miniDV)
- 1920×1080 (1080 lines): D-VHS, HD DVD, Blu-ray, HDCAM SR (pro)
- 2048×1080 : 2K Digital Cinema
- 4096×2160 : 4K Digital Cinema
- 10,000×7000 (7000 lines): IMAX, IMAX HD, OMNIMAX
- Film:
- 35 mm film is scanned for release on DVD at 1080 or 2000 lines as of 2005.
- 35 mm original camera negative motion picture film can resolve up to 6,000 lines.
- 35 mm projection positive motion picture film has about 2,000 lines which results from the analog printing from the camera negative of an interpositive, and possibly an internegative, then a projection positive.
- Sequences from newer films are scanned at 2,000, 4,000 or even 8,000 columns, called 2K, 4K and 8K, for quality visual-effects editing on computers.
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Shenzhen Pengyuan Electronics co.,ltd is to exhibit on China 107th Import & Export Fair, ( Canton Fair) , in guangdong this April . Welcome your visiting our booth at your convenience. Kindly have a look at our new R&D products, welcome your giving instructive suggestions and feel free let us know what can we do for you.
Venue:China Import and Export Fair(Pazhou)Complex。
Date:April.15th-19th.2010
USB:booth1:11.3J23
MP4/MP3:10.3K31
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Universal Serial Bus (USB) is a way to connect peripheral devices to computers. It replaces
the functionality of serial and parallel ports, including keyboard and mouse ports.
USB uses a bus topology, which means peripherals can be daisy-chained together or connected
through hubs. Up to 127 devices may be connected together at one time, and devices may be
connected and disconnected while the computer is in operation (hot-swapping).
To use USB peripherals, your computer must have either built-in USB capability or a USB
expansion card installed. Your computer's operating system must be able to support USB as
well.
USB devices are self-identifying, and USB is Plug-and-Play compliant, which means that
installation and configuration of USB devices should be relatively easy. The current
standard, USB 2.0, is backwards compatible with the earlier 1.0 and 1.1 standards. USB 2.0
supports bandwidths of 1.5Mbps, 12.5Mbps, and 480Mbps.
Peripherals that make use of USB connections include digital audio devices, telephony
devices, cable boxes, printers, keyboards, mice, joysticks, digital cameras, and scanners.
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PY-U-131
.Support 2.0 USB port
.Built-in lithium battery
.Support MP3 music format
.with capacity, non-support card slot
.without capacity, support micro sd card (1-8GB
PY-420-119
2.4" 4:3 320*240 TFT
Photo-taking and camera functions. 0.3 Mega pixels.
Support PC camera, with flashlight functions.
Support AVI, FLV, 3GP/ Rmvb video formats playing. VGA 320*240.
Support Ape, MP3, Wma, Ogg, Wav, Acc, Flac music formats.
Support 3D and SRS sound effects.
Support multi-tasks at one time.Can listen to the music while reading a e-book.
Support Jpeg, Bmp, Gif picture formats.Also can be used as a wallpaper for PC.
FM radio/ game. (optional)
Additional tools: calendar, stop-watch and calculator.
E-book and recording functions.
Support wav-out functions (solo speaker).
Support 18 different languages.
Video out-put: built-in TV-out function.
Support 128MB-8GB TF cards extended memory.
Built-in flash memory up to 16GB.
Battery 900mAh.
Working time when playing video: 3 hours.
Working time when playing music: 3.5 hours.
PY-530-019
3.0’16:9, 400*240 true colors TFT full touch screen
Support MP3,WMA,WAV,OGG APE and FLAC music format.
Support lyric synchronization
Support RMVB/RM AVI FLV,MP4,3GP,MPG movie format.
Support game function
Support JPG、BMP、GIF、PNG photo format.
Support FM and FM recording.
Build-in speaker, long time voice record.
Support the setting of word color, background and brightness
8 EQ levels
Support E-book reading, book marking.
Passport set and passport protection
Support clock and calendar function
Support document, music, video, picture and e-book searching function,
Support Win98SE/ME, WIN2000,XP,WIN7 system.
High speed USB2.0 port
Supported Micro SD Card up to 16GB
Support upgrade of software
Display Screen: 2.4" 4:3 320*240 TFT
Photo-taking and camera functions. 0.3 Mega pixels. Support PC camera, with flashlight functions.
Support AVI, FLV, 3GP/ Rmvb video formats playing. VGA 320*240.
Support Ape, MP3, Wma, Ogg, Wav, Acc, Flac music formats.
Support 3D and SRS sound effects.
Support multi-tasks at one time.Can listen to the music while reading a e-book.
Support Jpeg, Bmp, Gif picture formats.Also can be used as a wallpaper for PC.
FM radio/ game. (optional)
Additional tools: calendar, stop-watch and calculator.
E-book and recording functions.
Support wav-out functions (solo speaker).
Support 18 different languages.
Video out-put: built-in TV-out function.
Support 128MB-8GB TF cards extended memory.
Built-in flash memory up to 16GB.
Battery 900mAh.
Working time when playing video: 3 hours.
Working time when playing music: 3.5 hours.
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