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H "
Reading: Edge
Field:
Portable telephone > PHS > H "
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The advanced PHS service which the DDI pocket telephone group offers. While speaking by telephone while catching one radio wave, it continues to search the radio wave where sensitivity is superior with always, at the point in time when you could verify connection on occasion it changes, function is loaded, in addition, it shortens to former by the fact that maximum of 1/20 and substantial, break of the telephone call which is the weak point of former PHS has been improved the switching time of base station substantially. It offers also the high-speed data communication of 64kbps which conforms to PIAFS 2.1 and the sending and receiving service etc of e-mail. Good quality and the portable telephone of the sound of PHS in the sense, thing which ill-smelling is united in break, with the DDI pocket this has been expressed “hybrid carrying”.
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H.261
Reading: - The [ro] [ku] it is in h, the [chi]
Field:
Multimedia > animated picture > H.261
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ITU advised in 1990, one of standard of compressed coding system of image. Mainly you suppose that it utilizes the occasion where sending and receiving it does the image data in the viewphone and the video conference.
Low considering the fact that it utilizes with the ISDN circuit of bit rate, it has the specification which it can handle the image data of 64kbps - 1.92Mbps in the 64kbps mark, with the extent of congestion of traffic automatically bit rate changes.
Encoding block of 16 dot four sides (macro block) divides the whole picture, moves concerning every block and does the estimate between the compensating frame, dispersion cosine conversion (DCT) does the prediction error concerning 8 dot four sides, quantizes the signal which is obtained, does variable length encoding lastly.
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H.263
Reading: - The [ro] ill-smelling it is in h
Field:
Multimedia > animated picture > H.263
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| ITU (the International Telecommunication Union) advised in 1996, at one of standard of compressed coding system of image, H.261 those which it improves & develops. It is low the compressed system which such as analog telephone network aims toward the fact that it can utilize the viewphone and video conference even with the circuit of bit rate.
Basic system of encoding moves and being similar to H.261, utilizes the algorithm which combines encoding and DCT between the compensating frame. With H.263 movement compensation of semi- pixel precision and improvement of variable length raise compressed efficiency. Furthermore, several coded options in order to improve efficiency are prepared. |
H.264 <MPEG-4 AVC>
Reading: [eichinirokuyon]
Alias:
H.264/MPEG-4 AVC and MPEG-4 Part 10 Advanced Video Coding
Field:
Multimedia > animated picture > H.264
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It was advised ITU by in 2003 May, one of standard of compressed coding system of the animated picture data. Portion of animated picture compressed standard MPEG-4 as ISOwith, being advised, it is. Because of this, general like “H.264/MPEG-4 AVC” “H.264/AVC”, when naming both is recorded ? is many.
H.264, for the portable telephone of terrestrial digital broadcast broadcast and, SONY portable game machine “PSP”, of the next generation DVD and “Blu-ray Disc” and portable music player “iPod” of the Apple corporation and with multimedia software and so on is adopted as standard animated picture type.
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H.264/MPEG-4 AVC <H.264>
Alias:
MPEG-4 AVC and MPEG-4 Part 10 Advanced Video Coding
Field:
Multimedia > animated picture > H.264/MPEG-4 AVC
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It was advised ITU by in 2003 May, one of standard of compressed coding system of the animated picture data. Portion of animated picture compressed standard MPEG-4 as ISO with, being advised, it is. Because of this, general like “H.264/MPEG-4 AVC” “H.264/AVC”, when naming both is recorded ? is many.
H.264/MPEG-4 AVC, for the portable telephone of terrestrial digital broadcast broadcast and, SONY portable game machine of the next generation DVD and “Blu-ray Disc” and portable music player “iPod” of the Apple corporation and with multimedia software “QuickTime” and so on is adopted as standard animated picture type.
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