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41. 发明公开

EP0074142A2 Schaltungsanordnung zum Empfangen zweier Modulationssignale, insbesondere beim Fernsehen 有权转让
标题翻译：用于接收两个调制信号，特别是在电视的电路装置。
公开(公告)号：EP0074142A2
公开(公告)日：1983-03-16
申请号：EP82201071.6
申请日：1982-08-31
申请人： Philips Patentverwaltung GmbH , Philips Electronics N.V.
发明人： Schwarz, Henning , Buhse, Ulf
IPC分类号： H04N5/60 , H04H5/00
CPC分类号： H04N5/607
摘要： Schaltungsanordnung zum Empfangen zweier Modulationssignale, insbesondere beim Fernsehen, insbesondere für Stereo- oder Zweitonübertragung, bei der jedes der beiden Signale über je einen Verstärker mit einstellbarer Verstärkung geführt wird, wobei der Verstärkungsgrad der Verstärkung zwecks optimaler Dematrizierung des Stereosignals gegenläufig einstellbar und für Zweiton-Empfang um einen Faktor 2 umschaltbar ist.
摘要翻译：用于接收两个调制信号，特别是用于电视，尤其是用于立体声或双声道，其中，每个所述两个信号中的经由相应的可调节增益放大器进给，所述的电路装置，其中，所述增益用于立体声信号的最佳反矩阵变换相对可调，用于双音接收器的增益是通过因子切换。2

42. 发明公开

EP0066338A1 FM-broadcasting system with transmitter identification by means of a binary phase-modulated, differentially coded code signal 失效
标题翻译：由二进制相位调制的差分编码码信号FM广播系统发射器识别。
公开(公告)号：EP0066338A1
公开(公告)日：1982-12-08
申请号：EP82200625.0
申请日：1982-05-21
申请人： Philips Electronics N.V.
发明人： Schmidt, Johan Machiel
IPC分类号： H04H5/00 , H04L27/18
CPC分类号： H04L27/2276 , H04H20/34 , H04L27/2035
摘要： FM-broadcasting system comprising a FM-transmitter (1-16, 32-34) and a receiver (14-31, 35, 36) cooperating therewith, the transmission signal of which comprises a multiplex signal which is frequency-modulated on a main carrier wave, which multiplex signal comprises an audio-frequency information signal (L+R) and, in the case of a stereo transmission, a stereo information signal (L-R) modulated on a (38 kC) suppressed stereo subcarrier wave, also comprising a (19 kC) stereo pilot which is situated between the frequency spectra of the two information signals and a binary, differentially coded code signal which is phase-modulated on a (16.625 kC) code subcarrier wave which is situated outside the said frequency spectra, and does not coincide with the (19 kC) stereo pilot, the receiver (14-31, 35, 36) comprising a pilot regeneration circuit (22-25) for regenerating the (19 kC) stereo pilot, the code signal having a bit repetition period which is an integral number of times the period of the (19 kC) stereo pilot. The signal delay ( T ) required for differentially decoding the code signal is stabilized by means of a clock signal derived from the (19 kC) stereo pilot, use then being made of the fixed frequency relationship between the bit frequency of the code signal and the stereo pilot frequency, so that disturbances due to variations in the signal delay are avoided.

43. 发明公开

EP0032947A4 TANGENT FUNCTION GENERATOR FOR AM STEREO. 失效
标题翻译： AM-STEREO的切线功能发生器
公开(公告)号：EP0032947A4
公开(公告)日：1982-01-08
申请号：EP80901617
申请日：1981-02-24
申请人： MOTOROLA INC
发明人： MARIK CHARLES JAMES
IPC分类号： G06G7/22 , H04H1/00 , H04H20/49 , H04H5/00
CPC分类号： H04H20/49 , G06G7/22

44. 发明公开

EP1507348A3 Mechanism and method for adjusting the spectral and wideband gain in the feedback loops of a BTSC encoder 审中-公开
标题翻译：一个BTSC编码器的机构和方法，用于在所述反馈调整所述频谱和宽带放大回路
公开(公告)号：EP1507348A3
公开(公告)日：2013-04-03
申请号：EP04017528.3
申请日：2004-07-23
申请人： Broadcom Corporation
发明人： Srinivas, Hosahalli , Venkatesan, Gopal , Berg, Erik , Hundhausen, Amy
IPC分类号： H04H5/00
CPC分类号： H04H20/88 , H04R5/04
摘要： An integrated digital BTSC encoder substantially implemented on a single CMOS integrated circuit is described. By saturating and adding offsets to the value of the feedback control signal in regions of operation where the calculation for the control signal is dominated by noise, an integrated circuit selectively adjusts the control signal for the spectral or wideband feedback loop, as required, so that the performance of a very low noise digital BTSC encoder complies with the requirements of the BTSC standard.

45. 发明公开

EP1515467A3 Integrated circuit BTSC encoder 审中-公开
标题翻译：集成电路BTSC编码器
公开(公告)号：EP1515467A3
公开(公告)日：2009-03-11
申请号：EP04017522.6
申请日：2004-07-23
申请人： Broadcom Corporation
发明人： Hundhausen, Amy , Srinivas, Hosahalli , Venkatesan, Gopal , Berg, Erik
IPC分类号： H04H5/00
CPC分类号： H04H20/88
摘要： An integrated digital BTSC encoder substantially implemented on a single CMOS integrated circuit is described. By incorporating a BTSC encoder within an all digital RF modulator, an improved set top box is provided, obviating the need for an additional BTSC encoder and modulator board and/or discrete analog components. A fully integrated solution that performs BTSC encoding within the RF modulator may be used with legacy television systems and also with other audio/visual equipment connected to the set top box.

46. 发明授权

EP1113445B1 Verfahren und Vorrichtung zum Einkoppeln von Signalen in ein Multimedia-System 有权
标题翻译：方法以及用于耦合信号装置入多媒体系统
公开(公告)号：EP1113445B1
公开(公告)日：2007-09-12
申请号：EP00127622.9
申请日：2000-12-16
申请人： Volkswagen AG
发明人： Herrn Dr. Hallas Ernst
IPC分类号： G11B31/00 , H04B1/20 , H04H5/00
CPC分类号： G11B31/00

47. 发明授权

EP1008241B1 AUDIO DECODER WITH AN ADAPTIVE FREQUENCY DOMAIN DOWNMIXER 失效
标题翻译：与适应频率范围CONVERTER音频解码器
公开(公告)号：EP1008241B1
公开(公告)日：2006-08-02
申请号：EP97945162.2
申请日：1997-09-26
申请人： STMicroelectronics Asia Pacific Pte Ltd.
发明人： HUI, Yau, Wai, Lucas
IPC分类号： H04H1/00 , H04H5/00
CPC分类号： H04H20/88
摘要： A method and apparatus for decoding a multi-channel audio bitstream in which adaptive frequency domain downmixer is used to downmix, according to long and shorter transform block length information, the decoded frequency coefficients of the multi-channel audio such that the long and shorter transform block information is maintained separately within the mixed down left and right channels. In this way, the long and shorter transform block coefficients of the mixed down left and right channels can be inverse transformed adaptively according to the long and shorter transform block information, and the results of the inverse transform of the long and short block of each of the left and right channel added together to form the total mixed down output of the left and right channel.

48. 发明公开

EP1013018A4 MULTICHANNEL SPECTRAL MAPPING AUDIO APPARATUS AND METHOD 失效
标题翻译： VERFAHREN UNDTONGERÄTMIT MEHRKANAL-SPEKTRALABBILDUNG
公开(公告)号：EP1013018A4
公开(公告)日：2006-05-03
申请号：EP97942684
申请日：1997-09-15
申请人： BEARD TERRY D
发明人： BEARD TERRY D
IPC分类号： H04S3/00 , H03M7/30 , H04H20/88 , H04S3/02 , H04S5/00 , H04H5/00
CPC分类号： H04H20/88 , G10L19/008 , G10L19/167 , H04H20/48 , H04H20/89 , H04H60/04 , H04S5/005 , H04S5/02 , H04S2420/07
摘要： A method and circuit for deriving a set of multichannel audio signals (10) from a conventional monaural or stereo audio signals (1) uses an auxiliary multichannel spectral mapping data steam (90,92). Audio can be played back in stereo and multichannel formats from a conventional stereo signal (40) on compact discs (88), FM radio, or other stereo or monaural delivery systems (5). The invention reduces the data rate needed for the transmission of multichannel digital audio.
摘要翻译：用于从常规单声道或立体声音频信号（1）导出一组多声道音频信号（10）的方法和电路使用辅助多声道光谱映射数据蒸汽（90,92）。音频可以以立体声和多声道格式从光盘（88），FM收音机或其他立体声或单声道传送系统（5）上的传统立体声信号（40）中播放。本发明降低了传输多声道数字音频所需的数据速率。

49. 发明公开

EP1520362A1 DRAHTLOSES AUDIOSIGNALÜBERTRAGUNGSVERFAHREN FÜR EIN RAUMKLANGSYSTEM 审中-公开
标题翻译：无线音频信号传输方法为广泛SYSTEM
公开(公告)号：EP1520362A1
公开(公告)日：2005-04-06
申请号：EP03740365.6
申请日：2003-06-27
申请人： Micronas GmbH
发明人： TEMERINAC, Miodrag , FIESEL, Hans , BOCK, Christian
IPC分类号： H04H5/00
CPC分类号： H04H20/88
摘要： A wireless audio signal transmission method for transmitting audio signals between a transmitter device (S40) and a spatially adjacent receiver device (E50) which is associated with an audio signal reproduction device (LB) included in a three-dimensional sound system. Prior to transmission, the audio signals are digitized in the transmitter device (S40), compressed and transmitted as data packets (FD) by means of a high-frequency transmission method whereby symbols (A,B,C,D) are allocated to the individual data on a quadrature signal plane. A transmitter diversity operation occurs between the transmitter device (S40) and the receiver device (E50). The transmitter device (S40) comprises two separate high-frequence transmitters (S4, S5) with quadrature conversion, which are respectively connected to an associated transmission antenna (AS1, AS2). In the receiver, each audio signal reproduction device is, however, provided with only a single receiver device (E50) with a receiving antenna (EA) and a high-frequency receiver (ES). Differentiation of the two high-frequency received data flows (D1, D2), containing the individual signals in coded form, is carried out in a decoder device (CE).

50. 发明授权

EP0878798B1 Audio signal encoding method and apparatus 失效
标题翻译：音频信号编码方法和装置
公开(公告)号：EP0878798B1
公开(公告)日：2005-03-09
申请号：EP98108554.1
申请日：1998-05-11
申请人： SONY CORPORATION
发明人： Shimoyoshi, Osamu , Tsutsui, Kyoya
IPC分类号： H04B1/66 , H04S1/00 , G11B20/00 , H04H5/00 , H03M7/30
CPC分类号： H04S1/007 , H04B1/667

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