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公开(公告)号：US08948240B2
公开(公告)日：2015-02-03
申请号：US12255182
申请日：2008-10-21
Applicant: Randall Perlow , Charles Brooks , Steven Jaffe , Tianmin Liu
Inventor： Randall Perlow , Charles Brooks , Steven Jaffe , Tianmin Liu
CPC classification number: H04L25/0224 , H04L27/0008 , H04L2025/03503
Abstract: An adaptive receiver is disclosed for optimally receiving and processing signals. The receiver utilizes one or more memory blocks to store groups of incoming symbols. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The receiver determines the appropriate demodulation and decoding strategy to implement based on the determined channel characteristics. The receiver includes a plurality of demodulation and decoding schemes, one of which is selected based on the results of a channel estimation analysis.
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公开(公告)号：US07559076B2
公开(公告)日：2009-07-07
申请号：US10184770
申请日：2002-06-28
Applicant: Tommy Yu , Steven Jaffe , Stephen Edward Krafft
Inventor： Tommy Yu , Steven Jaffe , Stephen Edward Krafft
IPC: H04N5/445
CPC classification number: H04N21/437 , H04L27/3881 , H04N7/173 , H04N21/2383 , H04N21/239 , H04N21/41407 , H04N21/4382 , H04N21/6131 , H04N21/6181
Abstract: Sample rate reduction in data communication receivers. Digital sampling of analog data is performed using a reduced sample rate. The reduction factor may be any number of factors including a factor that divides the sample rate by a factor of two. The reduction of the sampling frequency is from a sampling frequency that is greater than twice the highest frequency component in an analog input signal. These analog input signals may be I and Q streams in certain embodiments. A digital interpolation filter may be employed to increase (up-convert) the sample rate of a digital signal before it is input to a VID filter that is used to recover the transmitted symbols from the over-sampled data stream. In this embodiment, this technique allows a front end of a communication receiver to be clocked at a lower sampling rate without affecting the performance of the VID filter.
Abstract translation: 数据通信接收机采样率降低。 使用降低的采样率进行模拟数据的数字采样。 减少因子可以是任何数量的因素，包括将采样率除以因子2的因子。 采样频率的降低来自大于模拟输入信号中最高频率分量的两倍的采样频率。 在某些实施例中，这些模拟输入信号可以是I和Q流。 可以采用数字内插滤波器来增加（上转换）数字信号的采样速率，然后再将其输入到用于从过采样数据流中恢复发送符号的VID滤波器。 在该实施例中，该技术允许通信接收器的前端以较低的采样率被计时，而不影响VID滤波器的性能。
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公开(公告)号：US20070105504A1
公开(公告)日：2007-05-10
申请号：US11516718
申请日：2006-09-07
Applicant: Pieter Vorenkamp , Myles Wakayama , Steven Jaffe , Frank Carr , Arnoldus Venes , Peter Kinget , Daniel Marz , Thinh Nguyen
Inventor： Pieter Vorenkamp , Myles Wakayama , Steven Jaffe , Frank Carr , Arnoldus Venes , Peter Kinget , Daniel Marz , Thinh Nguyen
IPC: H04B1/38
Abstract: An integrated communications system. A substrate having a receiver disposed on the substrate for converting a received signal to an IF signal, a digital IF demodulator disposed on the substrate and coupled to the receiver for converting the IF signal to a demodulated baseband signal, and a transmitter disposed on the substrate operating in cooperation with the receiver to establish a two way communications path.
Abstract translation: 综合通信系统。 一种衬底，具有设置在衬底上的接收器，用于将接收信号转换成IF信号;数字IF解调器，设置在衬底上并耦合到接收器，用于将IF信号转换成解调的基带信号;以及发射器，设置在衬底上 与接收机合作建立双向通信路径。
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公开(公告)号：US20070026831A1
公开(公告)日：2007-02-01
申请号：US11540662
申请日：2006-10-02
Applicant: Steven Jaffe , Donald McMullin , Ramon Gomez
Inventor： Steven Jaffe , Donald McMullin , Ramon Gomez
IPC: H04B7/00
CPC classification number: H04B1/28 , H04B1/0014 , H04B1/0032 , H04B1/0039
Abstract: An apparatus provides a local oscillator signal based on a selected channel of an RF input signal. For example, the apparatus can set a frequency of the local oscillator signal based on the selected channel. Digital circuitry can be used to generate the local oscillator signal. For instance, the digital circuitry can provide a digital representation of the local oscillator signal. A DAC can convert the digital representation to an analog signal. Other circuitry can provide first and second quadrature components of the local oscillator signal, based on the analog signal.
Abstract translation: 一种装置基于RF输入信号的所选择的信道提供本地振荡器信号。 例如，该装置可以基于所选择的信道来设置本地振荡器信号的频率。 数字电路可用于产生本地振荡器信号。 例如，数字电路可以提供本地振荡器信号的数字表示。 DAC可以将数字表示转换为模拟信号。 其他电路可以基于模拟信号提供本地振荡器信号的第一和第二正交分量。
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公开(公告)号：US07106388B2
公开(公告)日：2006-09-12
申请号：US09739349
申请日：2000-12-15
Applicant: Pieter Vorenkamp , Myles H. Wakayama , Steven Jaffe , Frank Carr , Arnoldus Venes , Peter R. Kinget , Daniel J. Marz , Thinh Nguyen
Inventor： Pieter Vorenkamp , Myles H. Wakayama , Steven Jaffe , Frank Carr , Arnoldus Venes , Peter R. Kinget , Daniel J. Marz , Thinh Nguyen
IPC: H04N5/455
Abstract: An integrated communications system. A substrate having a receiver disposed on the substrate for converting a received signal to an IF signal, a digital IF demodulator disposed on the substrate and coupled to the receiver for converting the IF signal to a demodulated baseband signal, and a transmitter disposed on the substrate operating in cooperation with the receiver to establish a two way communications path.
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Patent Agency Ranking
36.发明申请HDTV chip with a single if strip for handling analog and digital reception 有权HDTV芯片具有单独的条形码，用于处理模拟和数字接收公开(公告)号：US20050280742A1
公开(公告)日：2005-12-22
申请号：US11197735
申请日：2005-08-02
Applicant: Steven Jaffe
Inventor： Steven Jaffe
CPC classification number: H04N5/455 , H03D7/16 , H03J3/18 , H04N5/44 , H04N5/4401 , H04N7/035 , H04N21/426 , H04N21/4263 , H04N2005/91364
Abstract: Methods and systems for processing television signals are disclosed herein, and may comprise communicating analog and digital intermediate frequency (IF) signals via a single processing path that couples a TV radio frequency (RF) tuner to an IF demodulator and/or to a decoder, that processes said analog and digital IF signals. The analog and digital IF signals may be filtered via a surface acoustic wave (SAW) filter, for example. The filtered analog and digital IF signals may be amplified. The amplified filtered analog and digital IF signals may be received. The amplified filtered analog and digital IF signals may be IF demodulated by the IF demodulator to generate an IF demodulated output signal. An audio portion of the IF demodulated output signal may be decoded via a BTSC decoder, for example.
Abstract translation: 本文公开了用于处理电视信号的方法和系统，并且可以包括经由将TV射频（RF）调谐器耦合到IF解调器和/或解码器的单个处理路径来传送模拟和数字中频（IF）信号， 处理所述模拟和数字IF信号。 例如，可以经由表面声波（SAW）滤波器对模拟和数字IF信号进行滤波。 滤波后的模拟和数字IF信号可以被放大。 可以接收放大的经滤波的模拟和数字IF信号。 放大的滤波模拟和数字IF信号可以由IF解调器进行IF解调，以产生IF解调输出信号。 IF解调输出信号的音频部分例如可以经由BTSC解码器进行解码。
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公开(公告)号：US20050105651A1
公开(公告)日：2005-05-19
申请号：US11031107
申请日：2005-01-07
Applicant: Steven Jaffe , Tian-Min Liu , Loke Tan
Inventor： Steven Jaffe , Tian-Min Liu , Loke Tan
IPC: H04B1/68 , H04L25/03 , H04L27/00 , H04L27/02 , H04L27/06 , H04L27/227 , H04L27/34 , H04L27/38 , H04N5/21 , H04N5/44 , H04N5/46 , H04N11/00 , H04L27/14
CPC classification number: H04N21/4382 , H04B1/68 , H04L25/03057 , H04L27/02 , H04L27/066 , H04L27/2273 , H04L27/3427 , H04L27/3827 , H04L2025/03382 , H04L2025/0342 , H04L2025/0349 , H04L2025/03503 , H04L2027/0032 , H04L2027/0042 , H04L2027/0057 , H04L2027/0067 , H04L2027/0087 , H04N5/21 , H04N5/211 , H04N5/44 , H04N5/4401 , H04N5/46 , H04N11/002
Abstract: A television receiver system capable of receiving and demodulating television signal information content that has been modulated and transmitted in accordance with a variety of modulation formats is disclosed. In particular, the system is able to accommodate receipt and demodulation of at least 8 and 16-VSB modulated signals in order to support US HDTV applications, as well as 64 and 256-QAM modulated signals, for European and potential US CATV implementations. The system includes carrier and timing recovery loops adapted to operate on an enhanced pilot signal as well as decision directed carrier phase recovery loops. Phase detectors operate on I and Q rail signals, or generate a Q rail from a Hilbert transform of the I rail. Decision directed loops incorporate a trellis decoder in order to operate on sequence estimated decisions for improved reliability in poor SNR environments.
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公开(公告)号：US20050028220A1
公开(公告)日：2005-02-03
申请号：US10791686
申请日：2004-03-03
Applicant: David Baer , Jeff Tingley , Aleksandr Movshovich , Brad Grossman , Brian Schoner , Chengfuh Tang , Chuck Monahan , Darren Neuman , David Wu , Francis Cheung , Greg Kranawetter , Hoang Nhu , Hsien-Chih Tseng , Iue-Shuenn Chen , James Sweet , Jeffrey Bauch , Keith Klingler , Patrick Law , Rajesh Mamidwar , Dan Simon , Sang Tran , Shawn Johnson , Steven Jaffe , Thu Nguyen , Ut Nguyen , Yao-Hua Tseng , Brad Delanghe , Ben Giese , Jason Demas , Lakshman Ramakrishnan , Sandeep Bhatia , Guang-Ting Shih , Tracy Denk
Inventor： David Baer , Jeff Tingley , Aleksandr Movshovich , Brad Grossman , Brian Schoner , Chengfuh Tang , Chuck Monahan , Darren Neuman , David Wu , Francis Cheung , Greg Kranawetter , Hoang Nhu , Hsien-Chih Tseng , Iue-Shuenn Chen , James Sweet , Jeffrey Bauch , Keith Klingler , Patrick Law , Rajesh Mamidwar , Dan Simon , Sang Tran , Shawn Johnson , Steven Jaffe , Thu Nguyen , Ut Nguyen , Yao-Hua Tseng , Brad Delanghe , Ben Giese , Jason Demas , Lakshman Ramakrishnan , Sandeep Bhatia , Guang-Ting Shih , Tracy Denk
CPC classification number: H04N21/426 , H04N5/4401 , H04N5/44504 , H04N5/46 , H04N7/035 , H04N21/4263 , H04N21/4305 , H04N2005/91364
Abstract: A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies.
Abstract translation: 公开了一种提供用于在单个集成电路芯片上提供电视功能的成本有效方法的芯片上的电视（TVOC）系统。 TVOC包括以各种输入和输出格式接收和显示电视信号所必需的功能。 TVOC可用于有线和卫星电视的机顶盒，或直接在电视机内使用。 所提供的所有功能可以在单个集成电路上提供。 TVOC包括数据传输模块，IF解调器，数字音频引擎，模拟音频引擎，数字视频引擎和模拟视频引擎。 TVOC还包括三套接口，包括输出接口，控制接口和辅助接口。 其他特征和实施例提供增强的功能和提高的效率。
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公开(公告)号：US08711288B2
公开(公告)日：2014-04-29
申请号：US11516718
申请日：2006-09-07
Applicant: Pieter Vorenkamp , Myles H. Wakayama , Steven Jaffe , Frank Carr , Arnoldus Venes , Peter R. Kinget , Daniel J. Marz , Thinh Nguyen
Inventor： Pieter Vorenkamp , Myles H. Wakayama , Steven Jaffe , Frank Carr , Arnoldus Venes , Peter R. Kinget , Daniel J. Marz , Thinh Nguyen
IPC: H04N5/44
Abstract: An integrated communications system. A substrate having a receiver disposed on the substrate for converting a received signal to an IF signal, a digital IF demodulator disposed on the substrate and coupled to the receiver for converting the IF signal to a demodulated baseband signal, and a transmitter disposed on the substrate operating in cooperation with the receiver to establish a two way communications path.
Abstract translation: 综合通信系统。 一种衬底，具有设置在衬底上的接收器，用于将接收信号转换成IF信号;数字IF解调器，设置在衬底上并耦合到接收器，用于将IF信号转换成解调的基带信号;以及发射器，设置在衬底上 与接收方合作建立双向通信路径。
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公开(公告)号：US07903764B2
公开(公告)日：2011-03-08
申请号：US10952171
申请日：2004-09-29
Applicant: Tommy Yu , Steve Krafft , Steven Jaffe , Alan Kwentus
Inventor： Tommy Yu , Steve Krafft , Steven Jaffe , Alan Kwentus
CPC classification number: H04L27/2334 , H03D3/004 , H03D3/007 , H03D7/165
Abstract: An integrated burst FSK receiver is provided to receive and interpret an RF signal using FSK modulation. The integrated burst FSK receiver uses a programmable RF local oscillator to mix a received signal down to an IF range or baseband, where it is filtered and sampled for subsequent digital processing. Digital filtering and detection are employed to improve overall bit error rate performance and receiver sensitivity. A programmable digital low-pass or band-pass filter can also be used to suppress interference. A matched filter correlator can be used for detection and symbol timing adjustment in one mode, while an adaptive frequency comparator can be used in another mode. Circuits are provided that estimate carrier offset, frequency deviation and signal strength. These measurements can then be used to optimize the receiver performance. A method for receiving and interpreting an RF signal using FSK modulation is also provided.
Abstract translation: 提供集成突发FSK接收机，以使用FSK调制来接收和解释RF信号。 集成突发FSK接收机使用可编程RF本地振荡器将接收到的信号混合到IF范围或基带，在其中对其进行滤波和采样以用于随后的数字处理。 采用数字滤波和检测来提高总体误码率性能和接收机灵敏度。 也可以使用可编程数字低通滤波器或带通滤波器来抑制干扰。 匹配滤波器相关器可用于一种模式下的检测和符号定时调整，而自适应频率比较器可用于另一种模式。 提供了估计载波偏移，频率偏差和信号强度的电路。 然后可以使用这些测量来优化接收机性能。 还提供了一种使用FSK调制来接收和解释RF信号的方法。
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