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1. 发明公开

EP1289152A4 COMPRESSION METHOD AND APPARATUS, EXPANSION METHOD AND APPARATUS, COMPRESSION AND EXPANSION SYSTEM, RECORDED MEDIUM, PROGRAM 审中-公开
标题翻译：方法和装置进行压缩，扩张，压缩和膨胀系统，TANK和程序的方法和装置
公开(公告)号：EP1289152A4
公开(公告)日：2006-12-27
申请号：EP01932184
申请日：2001-05-22
申请人： SAKAI YASUE
发明人： KOYANAGI YUKIO
IPC分类号： H03M7/30 , H03M13/00
CPC分类号： H03M13/6312 , G11B20/1876 , H03M7/30 , H03M13/00
摘要： Data on a compression object is sampled at time interval of sample points where the error between a data value on a straight line which joins two pieces of sample data and a sample data value which corresponds to it is within a desired value, so that a set of discrete amplitude data D1,D6,... at respective sample points and timing data which express time intervals between the respective sample points are acquired as compression data. Thereby, from among the large amount of sample data D1,D2,... included in the data on the compression object, only a set of amplitude data and timing data at sample points where the errors from the original data do not become larger even if linear interpolation is executed during the expansion processing can be acquired as compression data, so that the quality of reproduction data can be much improved while realizing a high compression ratio.

2. 发明授权

EP0793383B1 Information transmission system with record/reproducing device 失效
标题翻译：与记录/再现设备的信息传输系统
公开(公告)号：EP0793383B1
公开(公告)日：2006-08-23
申请号：EP97106172.6
申请日：1989-08-03
申请人： CANON KABUSHIKI KAISHA
发明人： Ikeda, Shingo , Kashida, Motokazu , Yagisawa, Toshihiro , Hasegawa, Masahide , Tanaka, Mitsugu, Canon Musashishinden-ryo
IPC分类号： H04N5/92 , H04N7/26
CPC分类号： H04N21/236 , G11B20/00007 , G11B20/1813 , G11B20/1833 , G11B20/1876 , H04N5/9261 , H04N5/9267 , H04N5/945 , H04N7/54 , H04N19/00 , H04N19/40 , H04N21/231 , H04N21/2383 , H04N21/2662 , H04N21/4334 , H04N21/434 , H04N21/4382
摘要： There is disclosed an information transmission system provided with: a record/reproducing unit for recording compressed information obtained by compressing digital information with highly efficient encoding, on a recording medium, and reproducing the information from the recording medium; a transmitting unit for transmitting the compressed information, reproduced by the record/ reproducing unit, to a transmission channel; and a receiving unit for receiving the compressed information from the transmission channel and expanding the amount of the received compressed information to reproduce the original digital information.

3. 发明授权

EP0633572B1 Disk player 失效
标题翻译：电唱机
公开(公告)号：EP0633572B1
公开(公告)日：2004-11-03
申请号：EP94305021.1
申请日：1994-07-07
申请人： SANYO ELECTRIC Co., Ltd.
发明人： Ikeda, Osamu , Nagasawa, Naobumi , Ishikawa, Tsutomu , Tsukihashi, Akira
IPC分类号： G11B20/14
CPC分类号： G11B19/12 , G11B20/10 , G11B20/10527 , G11B20/1217 , G11B20/1251 , G11B20/1403 , G11B20/1876 , G11B2020/10546 , G11B2220/213 , G11B2220/2545

4. 发明公开

EP1410387A1 THE COPY PROTECTION OF DIGITAL DATA 审中-公开
标题翻译：数字数据的拷贝保护
公开(公告)号：EP1410387A1
公开(公告)日：2004-04-21
申请号：EP02713042.6
申请日：2002-03-21
申请人： Macrovision Corporation
发明人： HEYLEN, Richard, A., A.
IPC分类号： G11B20/00 , G11B20/10 , H03M13/15
CPC分类号： G11B20/00927 , G11B20/00086 , G11B20/10527 , G11B20/18 , G11B20/1809 , G11B20/1876 , H03M13/15 , H03M13/151 , H03M13/2924
摘要： In a system for protecting encoded digital data, for example, on a digital audio compact disc (CD-DA), specific audio samples are altered to cause spikes which are audible as clicks if played. All of the codewords in the encoded data which contain those altered samples are then identified, and data in each codeword is changed such that on decoding, the codewords will be identified as uncorrectable. Thus, if the decoded data is played by an audio player, error flags are reliably set so that error concealment, such as interpolation, is invoked and the spikes are inaudible. However, a data reader will either pass the uncorrectable data unchanged or will attempt to correct it. Therefore if a copy of the audio data is made, the clicks will be audible on playback.

5. 发明公开

EP1277208A1 A METHOD FOR RECONSTRUCTION OF AUDIO SIGNAL 审中-公开
标题翻译：方法重建的音频信号的
公开(公告)号：EP1277208A1
公开(公告)日：2003-01-22
申请号：EP01917133.9
申请日：2001-03-05
申请人： Kauppinen, Ismo , Kauppinen, Jyrki
发明人： Kauppinen, Ismo , Kauppinen, Jyrki
IPC分类号： G11B20/18
CPC分类号： G10L19/005 , G11B20/1876 , G11B20/24
摘要： The invention relates to a method for the reconstruction of an area with errors (3, 22) in an audio signal (1, 21), in which method the impulse responses of signals are calculated from the area (23) before the area with errors (3, 22) and the area (24) after the area with errors. By using the impulse response calculated from the area before the area with errors, the signal is extrapolated from the beginning of the area with errors (3, 22) forward (s"), and by using the impulse response calculated from the area after the area with errors, the signal is extrapolated backward (s"") from the end of the area with errors, after which the area with errors (3, 22) is replaced by the linear combination (25) of signals (s", s"") obtained by extrapolation.

6. 发明公开

EP1189455A3 Information transmission system with record / reproducing device 失效
标题翻译：带记录/再现设备的信息传输系统
公开(公告)号：EP1189455A3
公开(公告)日：2002-08-21
申请号：EP01124427.4
申请日：1989-08-03
申请人： CANON KABUSHIKI KAISHA
发明人： Ikeda, Shingo , Kashida, Motokazu , Yagisawa, Toshihiro , Hasegawa, Masahide , Tanaka, Mitsugu
IPC分类号： H04N7/66 , H04N5/926
CPC分类号： H04N21/236 , G11B20/00007 , G11B20/1813 , G11B20/1833 , G11B20/1876 , H04N5/9261 , H04N5/9267 , H04N5/945 , H04N7/54 , H04N19/00 , H04N19/40 , H04N21/231 , H04N21/2383 , H04N21/2662 , H04N21/4334 , H04N21/434 , H04N21/4382
摘要： There is disclosed an information transmission system provided with: a record/reproducing unit for recording compressed information obtained by compressing digital information with highly efficient encoding, on a recording medium, and reproducing the information from the recording medium; a transmitting unit for transmitting the compressed information, reproduced by the record/ reproducing unit, to a transmission channel; and a receiving unit for receiving the compressed information from the transmission channel and expanding the amount of the received compressed information to reproduce the original digital information.
摘要翻译：公开了一种信息传输系统，包括：记录/再现单元，用于将通过高效编码压缩数字信息而获得的压缩信息记录在记录介质上，并且从记录介质再现信息; 发送单元，用于将由记录/再现单元再现的压缩信息发送到传输信道; 以及接收单元，用于从传输信道接收压缩信息并且扩展接收到的压缩信息的量以再现原始数字信息。

7. 发明授权

EP0794666B1 Information transmission system with record/reproducing device 失效
标题翻译：与记录/再现设备的信息传输系统
公开(公告)号：EP0794666B1
公开(公告)日：2002-04-17
申请号：EP97106187.4
申请日：1989-08-03
申请人： CANON KABUSHIKI KAISHA
发明人： Ikeda, Shingo , Kashida, Motokazu , Yagisawa, Toshihiro , Hasegawa, Masahide , Tanaka, Mitsugu, Canon Musashishinden-ryo
IPC分类号： H04N5/92 , H04N7/26
CPC分类号： H04N21/236 , G11B20/00007 , G11B20/1813 , G11B20/1833 , G11B20/1876 , H04N5/9261 , H04N5/9267 , H04N5/945 , H04N7/54 , H04N19/00 , H04N19/40 , H04N21/231 , H04N21/2383 , H04N21/2662 , H04N21/4334 , H04N21/434 , H04N21/4382
摘要： There is disclosed an information transmission system provided with: a record/reproducing unit for recording compressed information obtained by compressing digital information with highly efficient encoding, on a recording medium, and reproducing the information from the recording medium; a transmitting unit for transmitting the compressed information, reproduced by the record/ reproducing unit, to a transmission channel; and a receiving unit for receiving the compressed information from the transmission channel and expanding the amount of the received compressed information to reproduce the original digital information.

8. 发明授权

EP0591842B1 Verschleierung von Bitfehlern und Interpolationen in Digitaltonsignalen 失效
标题翻译：在数字音频信号的比特错误和插补的隐蔽
公开(公告)号：EP0591842B1
公开(公告)日：2002-03-13
申请号：EP93115787.9
申请日：1993-09-30
申请人： DEUTSCHE THOMSON-BRANDT GMBH
发明人： Kühn, Hans-Robert , Storz, Dieter , Gehringer, Reinhard
IPC分类号： H04H1/00
CPC分类号： G11B20/1876 , H04H40/18

9. 发明授权

EP0571096B1 Data processing apparatus 失效
公开(公告)号：EP0571096B1
公开(公告)日：1999-06-23
申请号：EP93303421.7
申请日：1993-04-30
申请人： CANON KABUSHIKI KAISHA
发明人： Karasawa, Katsumi, c/o Canon Kabushiki Kaisha
IPC分类号： H03M13/00 , G11B20/18
CPC分类号： G11B20/1876 , H03M13/00 , H03M13/29 , H03M13/35

10. 发明公开

EP0820061A3 Playback apparatus and playback method 失效
标题翻译：重放设备和重放方法
公开(公告)号：EP0820061A3
公开(公告)日：1999-04-21
申请号：EP97112036.5
申请日：1997-07-15
申请人： SONY CORPORATION
发明人： Fujimoto, Kenksuke
IPC分类号： G11B20/10 , G11B20/14
CPC分类号： G11B20/10037 , G11B20/1403 , G11B20/1876 , H03L7/091 , H03L7/0994
摘要： An A/D converter (2) supplies an interpolation circuit (3) with sampled values which are obtained by sampling a playback signal coming from a read-out device (1) in synchronization with a system clock signal. In the interpolation circuit (3), the value of the playback signal at the time the phase of a PLL clock phase signal P supplied by a PLL clock phase signal generator (7) becomes zero is computed from the sampled values by using a linear interpolation technique. The interpolation value is then supplied to a binary conversion circuit (4) and fed back to a phase error detecting circuit (5). The binary conversion (4) circuit converts the interpolation value of the playback signal into a binary value which is then supplied to a circuit at the following stage. The phase error detecting circuit (5) detects a zero cross of the interpolation value of the playback signal. The zero cross timing is then used for computing a phase error signal which is then output to the PLL clock phase signal generator (7) by way of a loop filter (6). The PLL clock phasesignal generator generates the PLL clock phase signal P which is supplied to the interpolation circuit as described above.

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