公开(公告)号：US6108810A

公开(公告)日：2000-08-22

申请号：US49140

申请日：1998-03-27

申请人： Brian William Kroeger ,  Roy Ronald Stehlik ,  Denise Maureen Cammarata

发明人： Brian William Kroeger ,  Roy Ronald Stehlik ,  Denise Maureen Cammarata

IPC分类号： H03M13/23 ,  H03M13/00 ,  H03M13/25 ,  H03M13/35 ,  H04B1/04 ,  H04H20/46 ,  H04J11/00 ,  H04L1/00 ,  H04L27/26 ,  G06F11/10

CPC分类号： H04H20/30 ,  H03M13/235 ,  H03M13/25 ,  H03M13/35 ,  H03M13/6375 ,  H04L1/0059 ,  H04L1/0071 ,  H04L5/0046 ,  H04L5/0058 ,  H04H2201/20 ,  H04L2001/0098 ,  H04L27/2602 ,  H04L5/0007

摘要： A broadcasting method encodes program material using convolutional codes having non-puncturable bits and puncturable bits and modulates orthogonal frequency division multiplexed carrier signals with the convolutional codes. The non-puncturable bits are carried by a first group of the carriers and the puncturable bits are carried by a second group of the carriers, where the first group of carrier signals is less susceptible to interference than the second group of carrier signals. The carrier signals are then broadcast to receivers which determine if the carriers in the second group have been corrupted and erase puncturable bits carried by any of the carriers which have been determined to be corrupted. This produces punctured codes which are subsequently decoded to recover the program material.

摘要翻译： 广播方法使用具有不可打破比特和可分段比特的卷积码对节目素材进行编码，并用卷积码调制正交频分多路复用载波信号。 不可分组位由第一组载波承载，并且可去除位由第二组载波承载，其中第一组载波信号比第二组载波信号更不易受干扰。 载波信号然后被广播到接收机，接收机确定第二组中的载波是否已被破坏，并且擦除已被确定为已被破坏的任何载波携带的可打破比特。 这产生了随后被解码以便恢复节目素材的打孔码。

公开(公告)号：US6088349A

公开(公告)日：2000-07-11

申请号：US776058

申请日：1997-06-24

申请人： Markus Zumkeller

发明人： Markus Zumkeller

IPC分类号： H04B1/04 ,  H04B1/16 ,  H04H20/28 ,  H04H20/46 ,  H04H20/67 ,  H04L5/02 ,  H04J3/00

CPC分类号： H04H20/67 ,  H04H20/28 ,  H04H20/46 ,  H04L5/023

摘要： The common-wave broadcasting of radio programs is known in the art. Common-wave operation of radio transmitters allows the available transmission band width to be particularly well utilized, for example for national scale common-wave broadcasts. A new process now allows a stereo transmission channel to be divided into two mono transmission channels during radio broadcasts and to broadcast certain programs only through particular transmitters. Information concerning the division of the stereo transmission channel into two mono transmission channels is further broadcast over the entire common-wave transmission network. This information causes receivers tuned to this transmission channel to automatically switch to mono evaluation of the reception signal. On a regional level, information may also be broadcast concerning which of both mono transmission channels may be received. Alternatively, the receiver or user himself may select the mono transmission channel he wishes to receive. This process may be implemented with all common-wave broadcasting modes.

摘要翻译： PCT No.PCT / EP95 / 02751 Sec。 371日期：1997年6月24日 102（e）日期1997年6月24日PCT提交1995年7月13日PCT公布。 公开号WO96 / 02988 日期1996年2月1日广播节目的普通广播是本领域已知的。 无线电发射机的共波操作允许可用的传输带宽被特别好地利用，例如用于国家级的普通波广播。 一个新的过程现在允许在无线电广播期间将立体声传输信道划分成两个单声道传输信道，并且仅通过特定发射机来广播某些节目。 关于将立体声传输信道划分成两个单声道传输信道的信息在整个共波传输网络上被进一步广播。 该信息使得调谐到该传输信道的接收机自动切换到接收信号的单声道评估。 在区域一级，也可以广播关于可以接收两个单声道传输信道中的哪一个的信息。 或者，接收者或用户自己可以选择他希望接收的单声道传输信道。 该过程可以用所有普通波广播模式来实现。

公开(公告)号：US6058118A

公开(公告)日：2000-05-02

申请号：US875100

申请日：1997-09-29

申请人： Jean Christophe Rault ,  Jean-Pierre Bauduin ,  Jean-Michel Lemesle

发明人： Jean Christophe Rault ,  Jean-Pierre Bauduin ,  Jean-Michel Lemesle

IPC分类号： H04H20/33 ,  H04H20/40 ,  H04H20/42 ,  H04H20/46 ,  H04H20/72 ,  H04H40/27 ,  H04H60/07 ,  H04J3/16 ,  H04L1/00 ,  H04L27/26 ,  H04J15/00

CPC分类号： H04L1/0071 ,  H04H20/42 ,  H04H20/46 ,  H04J3/1629 ,  H04J3/1647 ,  H04L27/2608 ,  H04H20/33 ,  H04H20/40 ,  H04H20/72 ,  H04H2201/20 ,  H04H40/27 ,  H04H60/07

摘要： A method for the dynamic reconfiguration of a signal frame structure, wherein each frame is structured in at least one subchannel having a number, order and/or format capable of being altered under the control of a reallocation command, time interleaving on N frames being selectively performed for each subchannel. According to the method, in the transient state, and for the N frames following a reallocation command, the procedure for writing data elements according to the interleaving law remains unchanged, in accordance with the new structure defined by a reallocation command, and a specific logic for rereading the memory plane is implemented so that the frames consist of uniform capacity units comprising data elements from the same source signal. The corresponding transmitters, receivers and signals are also disclosed.

摘要翻译： PCT No.PCT / FR95 / 01538 Sec。 371日期：1997年9月29日 102（e）日期1997年9月29日PCT提交1995年11月22日PCT公布。 WO96 / 21293 PCT出版物 日期1996年7月11日一种用于信号帧结构的动态重新配置的方法，其中每个帧被构造在具有能够在重新分配命令的控制下被改变的数量，顺序和/或格式的至少一个子信道中，时间交织 对每个子信道选择性地执行N个帧。 根据该方法，在过渡状态中，对于重新分配命令之后的N个帧，根据交织规则写入数据元素的过程根据由重定位命令定义的新结构和特定逻辑 实现用于重新读取存储器平面的帧，使得帧由包括来自相同源信号的数据元素的均匀容量单元组成。 还公开了相应的发射机，接收机和信号。

公开(公告)号：US5815529A

公开(公告)日：1998-09-29

申请号：US628219

申请日：1996-04-04

申请人： Jin-Der Wang

发明人： Jin-Der Wang

IPC分类号： H04B1/26 ,  H04B1/64 ,  H04B14/04 ,  H04H20/46 ,  H04H20/72 ,  H04H40/27 ,  H04L27/18 ,  H04B15/00

CPC分类号： H04H20/46 ,  H04H40/27 ,  H04L27/18 ,  H04H20/72 ,  H04H2201/20

摘要： A digital audio broadcasting system includes an RF transmitter and a corresponding RF receiver. In the RF transmitter, a digitally compressed audio signal is encoded into a symbol stream that is first rotated using a frequency of 150,000 hertz (hz) before transmission to the RF receiver.

摘要翻译： 数字音频广播系统包括RF发射机和相应的RF接收机。 在RF发射机中，数字压缩的音频信号被编码成符号流，该符号流首先在传输到RF接收机之前以15万赫兹（hz）的频率旋转。

公开(公告)号：US5793980A

公开(公告)日：1998-08-11

申请号：US347582

申请日：1994-11-30

申请人： Robert D. Glaser ,  Mark O'Brien ,  Thomas B. Boutell ,  Randy Glen Goldberg

发明人： Robert D. Glaser ,  Mark O'Brien ,  Thomas B. Boutell ,  Randy Glen Goldberg

IPC分类号： H04H20/30 ,  H04H20/40 ,  H04H20/46 ,  H04H20/83 ,  H04H60/27 ,  H04H60/51 ,  H04H1/02 ,  G06F13/42

CPC分类号： H04H20/46 ,  H04H20/28 ,  H04H20/82 ,  H04H20/83 ,  H04H60/73 ,  H04H20/30 ,  H04H20/40 ,  H04H60/27 ,  H04H60/51

摘要： An audio-on-demand communication system provides real-time playback of audio data transferred via telephone lines or other communication links. One or more audio servers include memory banks which store compressed audio data. At the request of a user at a subscriber PC, an audio server transmits the compressed audio data over the communication link to the subscriber PC. The subscriber PC receives and decompresses the transmitted audio data in less than real-time using only the processing power of the CPU within the subscriber PC., According to one aspect of the present invention, high quality audio data compressed according to lossless compression techniques is transmitted together with normal quality audio data. According to another aspect of the present invention, metadata, or extra data, such as text, captions, still images, etc., is transmitted with audio data and is simultaneously displayed with corresponding audio data. The audio-on-demand system also provides a table of contents indicating significant divisions in the audio clip to be played and allows the user immediate access to audio data at the listed divisions. According to a further aspect of the present invention, servers and subscriber PCs are dynamically allocated based upon geographic location to provide the highest possible quality in the communication link.

摘要翻译： 音频按需通信系统提供经由电话线或其他通信链路传送的音频数据的实时回放。 一个或多个音频服务器包括存储压缩音频数据的存储器组。 在用户PC的用户请求下，音频服务器通过通信链路将压缩的音频数据发送给用户PC。 根据本发明的一个方面，根据无损压缩技术压缩的高质量音频数据是根据本发明的一个方面，所述用户PC仅使用所述用户PC内的CPU的处理能力， 与正常质量的音频数据一起传输。 根据本发明的另一方面，用音频数据发送诸如文本，标题，静止图像等的元数据或额外数据，并且与对应的音频数据同时显示。 音频点播系统还提供指示要播放的音频剪辑中的显着划分的内容表，并允许用户立即访问列出的部门的音频数据。 根据本发明的另一方面，基于地理位置动态地分配服务器和订户PC，以在通信链路中提供最高可能的质量。

公开(公告)号：US5488412A

公开(公告)日：1996-01-30

申请号：US221336

申请日：1994-03-31

申请人： Venkata C. Majeti ,  Mowaffak T. Midani ,  Richard J. Watson ,  Kenneth A. Zabriskie

发明人： Venkata C. Majeti ,  Mowaffak T. Midani ,  Richard J. Watson ,  Kenneth A. Zabriskie

IPC分类号： H04H20/42 ,  H04H20/46 ,  H04H20/79 ,  H04H60/15 ,  H04H60/94 ,  H04L12/28 ,  H04L29/06 ,  H04M11/00 ,  H04N7/10 ,  H04N7/173

CPC分类号： H04H20/79 ,  H04H60/94 ,  H04L12/2856 ,  H04L12/2898 ,  H04L12/5692 ,  H04L29/06 ,  H04N7/10 ,  H04N7/173 ,  H04H20/42 ,  H04H20/46 ,  H04H2201/70 ,  H04H60/15

摘要： In accordance with an embodiment of the present invention, a home controller receives signals from the cable television system and utilizes a cable demodulator tuned to the RF frequency of the channel which carries the data information. The cable demodulator demodulates the RF encoded signals into conventional baseband digital form which are transmitted to a packet receiver which decodes packets addressed to individual users. If a packet is addressed to the user, the packet receiver transmits the corresponding data such as by an ETHERNET transceiver to the user's personal computer. A communication controller may be utilized to provide an interface between the personal computer and the cable demodulator thereby, enabling the personal computer to select the channel to which the cable demodulator is tuned, in order to permit multiple data channels to be utilized.

摘要翻译： 根据本发明的实施例，家庭控制器从有线电视系统接收信号，并且使用调谐到传送数据信息的信道的RF频率的电缆解调器。 电缆解调器将RF编码的信号解调成传统的基带数字形式，其被传送到分组接收器，该分组接收器解码寻址到各个用户的分组。 如果分组被发送给用户，分组接收机将诸如通过以太网收发器的相应数据发送到用户的个人计算机。 可以使用通信控制器来提供个人计算机和电缆解调器之间的接口，从而使得个人计算机能够选择电缆解调器被调谐到的信道，以允许利用多个数据信道。

公开(公告)号：US08942294B2

公开(公告)日：2015-01-27

申请号：US12261263

申请日：2008-10-30

申请人： Yong-deok Chang ,  Joon-soo Kim ,  Sung-woo Park

发明人： Yong-deok Chang ,  Joon-soo Kim ,  Sung-woo Park

IPC分类号： H04N7/12 ,  H04N21/2383 ,  H04H20/46 ,  H04H40/27 ,  H04H60/07 ,  H04L1/00 ,  H04L25/03 ,  H04L27/02 ,  H04N5/44 ,  H04N21/438 ,  H04H20/42 ,  H04H20/72

CPC分类号： H04N21/2383 ,  H04H20/42 ,  H04H20/46 ,  H04H20/72 ,  H04H40/27 ,  H04H60/07 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/03006 ,  H04L27/02 ,  H04L2025/03382 ,  H04N5/4401 ,  H04N21/4382

摘要： A digital broadcasting transmission and/or reception system having an improved reception performance and a signal-processing method thereof. A digital broadcasting transmitter comprises a TRS encoder for to TRS-encode a MPEG-2 transmission stream having null data for inserting a Known data and a TRS parity at predetermined positions, randomizer to input and randomize data stream from the TRS encoder, a null packet exchanger to replace the null data for inserting the Known data to the known data, and an encoder for encoding a data streams to which the Known data is inserted. Accordingly, the present invention detects the known data from a signal received from a reception side and uses the detected known data for synchronization and equalization and further uses the TRS parity for correcting error of the received signal, so that the digital broadcasting reception performance can be improved at poor multipath channels.

公开(公告)号：US20120288098A1

公开(公告)日：2012-11-15

申请号：US13519036

申请日：2010-12-21

申请人： Thomas Esnault ,  Frédéríc Amadu

发明人： Thomas Esnault ,  Frédéríc Amadu

IPC分类号： H04H20/46

CPC分类号： H04H40/63 ,  G10L19/008

摘要： A method of optimizing stereo reception for an analog radio by applying the demodulated right sound signal (SD) and left sound signal (SG) as input to a decorrelation module having a variable decorrelation rate. The decorrelation rate of the decorrelation module is modified as a function of the reception quality coefficient “alpha” provided by the radio. The decorrelation module applies a higher decorrelation rate for a smaller reception quality coefficient “alpha” and applies a lower decorrelation rate for a larger reception quality coefficient “alpha. Also, a module for generating high-pitched sounds to recreate the high-frequency component (SHF) of the right or left sound signals which has been removed in the event of poor reception.

摘要翻译： 一种通过将解调的右声音信号（SD）和左声音信号（SG）作为输入施加到具有可变去相关速率的去相关模块来优化模拟无线电的立体声接收的方法。 解相关模块的解相关率被修改为由无线电提供的接收质量系数α的函数。 去相关模块对较小的接收质量系数α应用较高的去相关率，并且对较大的接收质量系数α应用较低的去相关速率。 另外，用于产生高音声音的模块，用于重现在接收不良的情况下被去除的右声音或左声音信号的高频分量（SHF）。

公开(公告)号：US20050249300A1

公开(公告)日：2005-11-10

申请号：US11121064

申请日：2005-05-04

申请人： Hae-joo Jeong ,  Yong-deok Chang ,  Eui-jun Park

发明人： Hae-joo Jeong ,  Yong-deok Chang ,  Eui-jun Park

IPC分类号： H04N7/015 ,  H04H1/00 ,  H04H20/42 ,  H04H20/46 ,  H04H20/72 ,  H04H40/27 ,  H04L1/00 ,  H04L7/04 ,  H04L25/03 ,  H04L25/49

CPC分类号： H04L1/0041 ,  H04H20/42 ,  H04H20/46 ,  H04H20/72 ,  H04H40/27 ,  H04L1/0045 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L7/04 ,  H04L2007/045

摘要： A digital broadcasting transmission and/or reception system having an improved reception performance and a signal-processing method thereof. A digital broadcasting transmitter comprises a randomizer to input and randomize data streams including a plurality of segments having at least one segment having one or more null packets, a null packet exchanger to create known data having a predetermined pattern and to replace the null packets at positions of the segments having the null packets of the randomized data streams to insert the known data, an encoder to encode the data streams to which the known data is inserted, and a modulation/RF unit to modulate, RF-modulate, and transmit the encoded data streams. A digital broadcasting receiver detects the known data from a signal received from the digital broadcasting transmitter and uses the detected known data for synchronization and equalization, so that a digital broadcasting reception performance of the digital broadcasting receiver can be improved at poor multipath channels.

摘要翻译： 一种具有改善的接收性能的数字广播发射和/或接收系统及其信号处理方法。 数字广播发射机包括随机化器，用于输入和随机化包括具有至少一个具有一个或多个空分组的分段的多个分段的数据流;零分组交换机，用于创建具有预定模式的已知数据，并在位置 具有随机数据流的空分组以插入已知数据的分段的编码器，对已知数据被插入的数据流进行编码的编码器和调制/ RF单元来调制，RF调制和发送编码的 数据流。 数字广播接收机从数字广播发射机接收的信号中检测已知数据，并使用检测到的已知数据进行同步和均衡，从而可以在较差的多径信道下改善数字广播接收机的数字广播接收性能。

公开(公告)号：US20050018752A1

公开(公告)日：2005-01-27

申请号：US10860514

申请日：2004-06-02

申请人： Richard Anglin

发明人： Richard Anglin

IPC分类号： H04B1/69 ,  H04H20/46 ,  H04H20/72 ,  H04H20/95 ,  H04H40/27 ,  H04L27/10 ,  H04L27/148 ,  H04L27/156 ,  H04N7/173

CPC分类号： H04N7/173 ,  H04B1/69 ,  H04B2001/6912 ,  H04H20/46 ,  H04H20/72 ,  H04H20/95 ,  H04H40/27 ,  H04L27/10 ,  H04L27/148 ,  H04L27/1563

摘要： The present invention includes a chirp transmission means for generating and emanating chirps. In general, a chirp is a pulse, waveform or propagated signal which may be characterized by a mathematical function. In one embodiment, the mathematical function comprises a relationship between frequency and time. The invention also includes a chirp reception means for receiving chirps without the need for tuning to a carrier waveform. The reception means is capable of extracting digital data from the received chirps. In alternative embodiments of the invention, the chirps may convey voice, video or other signals.

摘要翻译： 本发明包括用于产生和发出啁啾的啁啾传播装置。 通常，啁啾是脉冲，波形或传播的信号，其可以通过数学函数来表征。 在一个实施例中，数学函数包括频率和时间之间的关系。 本发明还包括用于接收啁啾而不需要调谐到载波波形的啁啾接收装置。 接收装置能够从接收的啁啾中提取数字数据。 在本发明的替代实施例中，啁啾声可以传达语音，视频或其他信号。