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1. 发明授权

EP0949763B1 Digital transmission system for transmitting scale factors 失效
标题翻译：对于比例因子传输的数字传输系统
公开(公告)号：EP0949763B1
公开(公告)日：2006-10-25
申请号：EP99202037.0
申请日：1990-05-29
申请人： Koninklijke Philips Electronics N.V. , FRANCE TELECOM , S.A. TELEDIFFUSION DE FRANCE , Institut für Rundfunktechnik GmbH
发明人： Beekmans, Jan Johannes Petrus Maria
IPC分类号： H04B1/66 , G11B20/10 , H04S3/00 , H04H1/00 , H04H5/00 , G11B20/00 , G10L19/02 , G10L19/14
CPC分类号： H04H20/88 , G10L19/008 , G10L19/0208 , G11B20/00007 , G11B20/00086 , G11B20/00992 , G11B20/10 , G11B20/10527 , G11B20/12 , G11B20/1833 , G11B27/3027 , G11B2020/10592 , G11B2020/10601 , G11B2220/90 , G11B2220/913 , G11B2220/93 , H04B1/665 , H04B1/667 , H04H20/28 , H04H20/30 , H04H20/31 , H04H20/47 , H04H20/89 , H04H20/95 , H04H40/18 , H04H40/36 , H04H60/07 , H04H60/13 , H04H60/18
摘要： The audio transmission system samples and digitizes the audio input and separates it into subbands defined for psychoacoustic factors. The signals are pre-amplified (46) and then quantized (48) and combined for transmission. The pre-amplification if performed by using a multiplier having a relationship with 2 k>.g(p). The g(p) function has binary patterns for different values of p=0,1 and 2. The pre-amplifier also generates an n-bit binary scale value identifier of 3k+p.

2. 发明授权

EP0983634B1 ARITHMETIC ENCODING/DECODING OF A DIGITAL INFORMATION SIGNAL 有权
标题翻译：算术编码/解码的信息信号
公开(公告)号：EP0983634B1
公开(公告)日：2006-10-11
申请号：EP99902767.5
申请日：1999-02-22
申请人： Koninklijke Philips Electronics N.V. , PHILIPS AB
发明人： BRUEKERS, Alphons, A., M., L. , RIJNBERG, Adriaan
IPC分类号： H03M7/40
CPC分类号： H03M7/4006 , H03M7/3004
摘要： Audio signals can be converted from analog into digital using the well-known sigma-delta modulation techniques. The digital signal then consists of a sequence of 1-bit samples at a frequency of e.g. 2822400 Hz(=64*44100 Hz). Lossless coding techniques are known to reduce the required storage- or transmission-capacity for these 1-bit oversampled audio signals. With the current invention the performance (compression ratio) of the lossless coder for 1-bit oversampled audio signals can be improved. This is realized by sometimes overruling the probability signal for the lossless coder.

3. 发明授权

EP0965172B1 DEVICE FOR ENCODING/DECODING N-BIT SOURCE WORDS INTO CORRESPONDING M-BIT CHANNEL WORDS, AND VICE VERSA 有权
标题翻译： DEVICE FOR n位源字编码/解码为相应的m位信道字与反之亦
公开(公告)号：EP0965172B1
公开(公告)日：2006-03-01
申请号：EP99900067.2
申请日：1999-01-08
申请人： Koninklijke Philips Electronics N.V.
发明人： KAHLMAN, Josephus, A., H., M.
IPC分类号： H03M7/00
CPC分类号： H03M5/145 , H03M7/20
摘要： A device is disclosed for encoding a stream of databits of a binary source signal into a stream of databits of a binary channel signal. The device comprises a merging unit (4') for merging a 1-bit merging word at equidistant positions in the serial datastream of the binary source signal, so as to obtain a composite binary source signal. A shuffling step is carried out on the composite binary source signal in a shuffling unit (8'). Next a conversion is carried out in a converter unit (10'), resulting in the channel signal (Fig. 2). Further, a decoding device is disclosed for decoding the channel signal obtained by means of the encoding device.

4. 发明授权

EP0820664B1 N-CHANNEL TRANSMISSION, COMPATIBLE WITH 2-CHANNEL TRANSMISSION AND 1-CHANNEL TRANSMISSION 失效
标题翻译： WITH 2信道和1道传输兼容N沟道传输
公开(公告)号：EP0820664B1
公开(公告)日：2005-11-09
申请号：EP97900704.4
申请日：1997-01-31
申请人： Koninklijke Philips Electronics N.V.
发明人： TEN KATE, Warner, Rudolph, Theophile
IPC分类号： H04B1/66
CPC分类号： H04H20/88 , G10L19/0208 , H04B1/667

5. 发明公开

EP1587219A2 Record carrier having an encoded wideband digital audio signal recorded on it 失效
标题翻译： Aufzeichnungsträgermit digitalen Breitbandaudiosignal
公开(公告)号：EP1587219A2
公开(公告)日：2005-10-19
申请号：EP05103587.1
申请日：1990-05-29
申请人： Koninklijke Philips Electronics N.V. , FRANCE TELECOM , S.A. TELEDIFFUSION DE FRANCE , Institut für Rundfunktechnik GmbH
发明人： Lokhoff, Gerardus, C. P., c/o Philips Int. P. & S. , Déhery, Yves, F., c/o Philips Int. P. & S. , Theile, Günther, c/o Philips Int. P. & S. , Stoll, Gerhard, c/o Philips Int. P. & S.
IPC分类号： H04B1/66 , G11B20/10 , H04S3/00 , H04H1/00 , H04H5/00 , G11B20/00 , G10L19/02 , G10L19/14
CPC分类号： G10L19/0208 , G10L19/008
摘要： Reproduction accuracy of a digital signal, representing for example stereo audio signals, is improved by transmitting sample data, which have been encoded to form transmission signals. The stereo audio signals are coded into sub(band) signals. Corresponding sub(band)signals of the stereo audio signals may be processed to obtain composite sub(band) signals, which are recorded on a record carrier.
To identify whether corresponding sub(band) signals have been processed or not, a mode indicator control signal indicating whether a corresponding sub signal of the at least two signal components have or have not been processed into a composite sub signal is also being recorded on the record carrier.
摘要翻译：通过发送已经被编码以形成传输信号的采样数据来改进表示例如立体声音频信号的数字信号的再现精度。立体声音频信号被编码成子（频带）信号。可以处理立体声音频信号的相应的子（频带）信号以获得记录在记录载体上的复合子频带信号。为了识别相应的子带信号是否已经被处理，表示至少两个信号分量的对应子信号是否已经被处理成复合子信号的模式指示符控制信号也被记录在记录载体。

6. 发明授权

EP0992036B1 DEVICE FOR WRITE COMPENSATION IN MAGNETIC-MEDIA RECORDING 有权
标题翻译：写补偿系统用于记录磁介质
公开(公告)号：EP0992036B1
公开(公告)日：2005-04-27
申请号：EP99901818.7
申请日：1999-02-08
申请人： Koninklijke Philips Electronics N.V. , Hewlett-Packard Company, A Delaware Corporation
发明人： BERGMANS, Johannes, W., M. , VOORMAN, Johannes, O. , BRITTENHAM, Steven, L.
IPC分类号： G11B20/10
CPC分类号： G11B20/10009 , G11B5/09

7. 发明公开

EP0949763A3 Digital transmission system for transmitting scale factors 失效
标题翻译：对于比例因子传输的数字传输系统
公开(公告)号：EP0949763A3
公开(公告)日：2005-01-19
申请号：EP99202037.0
申请日：1990-05-29
申请人： Koninklijke Philips Electronics N.V. , FRANCE TELECOM , S.A. TELEDIFFUSION DE FRANCE , Institut für Rundfunktechnik GmbH
发明人： Beekmans, Jan Johannes Petrus Maria
IPC分类号： H04B1/66 , G11B20/10 , H04S3/00 , H04H1/00 , H04H5/00 , G11B20/00 , G10L19/02 , G10L19/14
CPC分类号： H04H20/88 , G10L19/008 , G10L19/0208 , G11B20/00007 , G11B20/00086 , G11B20/00992 , G11B20/10 , G11B20/10527 , G11B20/12 , G11B20/1833 , G11B27/3027 , G11B2020/10592 , G11B2020/10601 , G11B2220/90 , G11B2220/913 , G11B2220/93 , H04B1/665 , H04B1/667 , H04H20/28 , H04H20/30 , H04H20/31 , H04H20/47 , H04H20/89 , H04H20/95 , H04H40/18 , H04H40/36 , H04H60/07 , H04H60/13 , H04H60/18
摘要： The invention provides a digital transmission system having a transmitter and a receiver, for transmitting a wideband digital audio signal via a transmission medium. The transmitter comprises analysis filter means (3) for filtering the wideband digital audio signal so as to obtain a plurality of sub signals (S SBm ), preamplifier means (46.1 to 46.M) for preamplifying sub signals, quantizer means (48.1 to 48.M) for quantizing preamplified sub signals and means (27) for applying quantized preamplified sub signals to the transmission medium. The receiver comprises means (28) for receiving quantized preamplified sub signals from the transmission medium, dequantizer means for dequantizing quantized preamplified sub signals, amplifier means (17) for amplifying preamplified sub signals so as to obtain a replica of the plurality of sub signals and synthesis filter means (21) for combining the plurality of sub signals so as to obtain a replica of the wideband digital audio signal. In accordance with the invention, the preamplifier means (46.1 to 46.M) are adapted to multiply a sub signal with a multiplier value M that has a relationship with 2 k .g(p), where k and p are integers, where g(p) substantially equals 1 for p=0, 1 + 2-2 + 2-8 2-10 + 2-16 + 2-18 + 2-23 for p=1 and 1 + 2-1 + 2-4 + 2-6 + 2-8 + 2-9 + 2-10 + 2-13 + 2-15 + 2-16 + 2-17 + 2-19 + 2-20 for p=2, the preamplifier means further being adapted to generate an n-bit binary scale factor identifier signal identifying said multiplier value, the decimal value SF corresponding to the said binary scale factor identifier signal satisfying the relationship SF = 3k + p, that the amplifier means (17) are adapted to multiply the preamplified sub signals with a multiplier value M' that has a relationship with 2 -k .g'(p), where g'(p) substantially equals 1 for p=0, 2-1 + 2-2 + 2-5 + 2-6 for p=1 and 2-1 + 2-3 + 2-8 + 2-9 for p=2.

8. 发明授权

EP0858230B1 Recording and producing an MPEG information signal on/from a record carrier 失效
标题翻译：记录和/的MPEG信息信号的再现来自记录介质的
公开(公告)号：EP0858230B1
公开(公告)日：2004-06-02
申请号：EP98201032.4
申请日：1995-03-14
申请人： Koninklijke Philips Electronics N.V.
发明人： Van Gestel, Wilhelmus Jacobus , Saeijs, Ronald Wilhelm Johan Jozef , Shah, Imran Ali
IPC分类号： H04N9/804
CPC分类号： H04L12/40117 , G11B5/09 , G11B15/1875 , G11B20/12 , G11B20/1208 , G11B27/005 , G11B27/3027 , G11B27/3054 , G11B27/3063 , G11B27/309 , G11B2220/90 , H04N5/78263 , H04N5/78266 , H04N5/783 , H04N9/8042 , H04N9/8227 , H04N21/23406 , H04N21/23608 , H04N21/2381 , H04N21/4147 , H04N21/4305 , H04N21/4334 , H04N21/4344 , H04N21/4363 , H04N21/43632 , H04N21/4381 , H04N21/44004 , H04N21/8126 , H04N21/8455

9. 发明公开

EP1271819A3 Transmission and reception of a first and a second main signal components 失效
标题翻译：发送和接收的第一和第二主信号分量
公开(公告)号：EP1271819A3
公开(公告)日：2004-01-21
申请号：EP02078975.6
申请日：1994-10-18
申请人： Koninklijke Philips Electronics N.V.
发明人： Ten Kate, Warner R.T., c/o Internationaal
IPC分类号： H04H5/00 , H04S3/02 , G11B20/00 , H04B1/66
CPC分类号： G11B20/00007 , G11B20/00992 , G11B20/10
摘要： A transmitter for transmitting at least a first and a second main signal component (L+R) is disclosed, having at least two input terminals(1,90) for receiving the at least two input signals. The transmitter comprises multiplexer means (111') for multiplexing the at least two input signals to a first input (11') of matrixing means (13'), and to an input of first bitrate reducing means (BRR1). The first bitrate reducing means is for carrying out a data reduction step on the signal applied to its input and to supply a data reduced version to an output. Expansion means (7') are present, having an input coupled to the first bitrate reducing means (BRR1), for carrying out a data expansion on the data information applied to its input, so as to obtain a replica of the signal applied to the input of the bitrate reducing means at an output. Said output is coupled to a second input (12') of the matrixing means (13'). An output (14') of the matrixing means (13') is coupled to signal combination means (29) via second bitrate reducing means (BRR2). The output of the first bitrate reducing means (BRR1) is also coupled to the combination means (29). The signal combination means (29) is adapted to combine the signals so as to enable the transmission of those output signals. Conversion means (SPL2,SPL3) are provided between the input terminals (1,90) and the inputs of the multiplexer means (111') for converting the input signals into corresponding subsignals, such as subband signals. (Fig. 6) Further, a receiver for receiving the signals transmitted by means of the transmitter via the transmission medium, is disclosed. (Fig. 7) The signals supplied by the combination means can be recorded on a record carrier (193).

10. 发明授权

EP0853842B1 ENCODING OF A PLURALITY OF INFORMATION SIGNALS 失效
标题翻译：译码数据信号的各种
公开(公告)号：EP0853842B1
公开(公告)日：2003-07-09
申请号：EP97908427.4
申请日：1997-04-01
申请人： Koninklijke Philips Electronics N.V.
发明人： TEN KATE, Warner, Rudolph, Theophile
IPC分类号： H03M7/30 , H04B1/66 , H04S3/00 , G11B20/00 , H04H5/00
CPC分类号： H04H20/88 , G11B20/00007 , G11B20/00992 , G11B2020/10592 , H04B1/667 , H04S3/02
摘要： The apparatus for encoding a plurality of digital information signals, having at least a first input unit for receiving a first digital information signal and a second input unit for receiving a second digital information signal. A signal combination unit combines the first and second digital information signal to generate a first combination signal. First and second data compression units compress the first and second digital information signal so as to obtain first and second data reduced digital information signals. First, second, and third masked threshold determining units determine first, second and third masked thresholds respectively from the first, second digital information signals and the combination signal respectively. A selection unit selects one masked threshold from the first and third masked threshold so as to obtain a first selected masked threshold. Preferably, the first selected masked threshold is the smallest of the first and third masked thresholds. The first data compression unit compresses the first digital information signal in response to the first selected masked threshold. A formatting unit combines the first and second data reduced digital information signals into a transmission signal for transmission via a transmission medium. The choice is made between at least two masked thresholds, including the masked threshold derived from the information signal itself and the masked threshold derived from another signal. The other signal may be a combination signal that includes the information signal.

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