公开(公告)号：US20100150015A1

公开(公告)日：2010-06-17

申请号：US12627236

申请日：2009-11-30

Applicant: Byoung Gill Kim ,  Won Gyu Song ,  Hyoung Gon Lee ,  In Hwan Choi ,  Jin Woo Kim

Inventor： Byoung Gill Kim ,  Won Gyu Song ,  Hyoung Gon Lee ,  In Hwan Choi ,  Jin Woo Kim

IPC: H04L12/26 ,  H03H7/30

CPC classification number: H04H40/18 ,  H04H2201/60 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/03006 ,  H04L2025/03426

Abstract: A receiving system and a method of processing broadcast signal are disclosed herein. The receiving system includes N number of antennae, N number of demodulators, N number of known sequence detectors, and an equalizer. The N number of antennae each receives a broadcast signal including mobile service data and known data sequences. The N number of demodulators demodulates the broadcast signal received by the corresponding antenna. The N number of known sequence detectors detects known data sequences from the broadcast signal received by the corresponding antenna. The equalizer estimates a channel impulse response (CIR) of a broadcast signal received and demodulated by each antenna based upon each known data sequence detected by the N number of known sequence detectors, calculates an equalization coefficient of the broadcast signal received and demodulated by each antenna based upon at least one of the estimated CIRs, so as to compensate channel distortion of the broadcast signal received and demodulated by each antenna, and combines at least one or more distortion-compensated broadcast signal, thereby finally outputting the combined signal.

Abstract translation: 本文公开了一种处理广播信号的接收系统和方法。 接收系统包括N个天线，N个解调器，N个已知序列检测器和均衡器。 N个天线各接收包括移动业务数据和已知数据序列的广播信号。 N个解调器解调由相应天线接收的广播信号。 N个已知序列检测器根据由相应天线接收的广播信号检测已知数据序列。 均衡器基于由N个已知序列检测器检测到的每个已知数据序列来估计由每个天线接收和解调的广播信号的信道脉冲响应（CIR），计算由每个天线接收和解调的广播信号的均衡系数 基于所估计的CIR中的至少一个，以补偿由每个天线接收和解调的广播信号的信道失真，并且组合至少一个或多个失真补偿广播信号，从而最终输出组合信号。

公开(公告)号：US20090288116A1

公开(公告)日：2009-11-19

申请号：US12122622

申请日：2008-05-16

Applicant: Gary M. Zalewski

Inventor： Gary M. Zalewski

IPC: H04N5/445 ,  H04N5/50

CPC classification number: H04L41/50 ,  H04H20/106 ,  H04H40/09 ,  H04H60/25 ,  H04H60/72 ,  H04H2201/60 ,  H04N5/4401 ,  H04N5/50 ,  H04N7/17318 ,  H04N21/235 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/435 ,  H04N21/44209 ,  H04N21/4524 ,  H04N21/4586 ,  H04N21/6375 ,  H04N21/6377 ,  H04N21/658

Abstract: Data broadcast over different channels may be updated in a digital broadcast receiving device. The device may include a receiver unit, a processor, memory instructions embodied in the memory for execution on the processor. The instructions may be configured to implement the method for updating data broadcast over different channels. A first digital broadcast signal may be received over a first channel. The receiving device may be tuned to a second channel at a predetermined time to receive a second digital broadcast signal. Selected data may be extracted from the second digital broadcast signal and stored or utilized with the receiving device. An update schedule may be generated for data transmitted with a digital broadcast signal. A broadcast time for an update packet may be determined from a packet header. A schedule packet may be generated containing the broadcast time and broadcast before the update packet.

Abstract translation: 可以在数字广播接收装置中更新不同信道上的数据广播。 该设备可以包括接收器单元，处理器，体现在存储器中的用于在处理器上执行的存储器指令。 指令可以被配置为实现用于更新在不同信道上广播的数据的方法。 可以在第一信道上接收第一数字广播信号。 接收设备可以在预定时间被调谐到第二信道以接收第二数字广播信号。 可以从第二数字广播信号中提取所选择的数据，并与接收装置一起存储或使用。 可以为使用数字广播信号发送的数据生成更新时间表。 可以从分组报头确定更新分组的广播时间。 可以生成包含广播时间并在更新分组之前广播的调度分组。

公开(公告)号：US20090141596A1

公开(公告)日：2009-06-04

申请号：US11949155

申请日：2007-12-03

Applicant: JAMISON C. SCHROEDER ,  DAVID E. BOJANOWSKI ,  WALTER J. HOLLOWAY

Inventor： JAMISON C. SCHROEDER ,  DAVID E. BOJANOWSKI ,  WALTER J. HOLLOWAY

IPC: H04H60/27

CPC classification number: H04H60/27 ,  H04H2201/60

Abstract: Methods and apparatus are provided for timeshifting audio content in a multiple tuner audio system comprising a first tuner and a second tuner. One operating method involves maintaining a first data storage element for the first tuner, maintaining a second data storage element for the second tuner, receiving first audio content in realtime by the first tuner, and storing data representing the first audio content in the first data storage element, resulting in first stored content. The method also receives second audio content in realtime by the second tuner, and stores data representing the second audio content in the second data storage element, resulting in second stored content. The method thereafter generates a timeshifted audio signal corresponding to the first stored content or the second stored content.

Abstract translation: 提供了在包括第一调谐器和第二调谐器的多调谐器音频系统中对音频内容进行时移的方法和装置。 一种操作方法包括维护第一调谐器的第一数据存储元件，维护第二调谐器的第二数据存储元件，由第一调谐器实时接收第一音频内容，以及将表示第一音频内容的数据存储在第一数据存储器 元素，导致第一个存储的内容。 该方法还通过第二调谐器实时接收第二音频内容，并将表示第二音频内容的数据存储在第二数据存储元件中，从而产生第二存储内容。 该方法此后生成对应于第一存储内容或第二存储内容的时移音频信号。

公开(公告)号：US20090122205A1

公开(公告)日：2009-05-14

申请号：US12085410

申请日：2005-11-29

Applicant: Mike Xing ,  Dale Wayne King

Inventor： Mike Xing ,  Dale Wayne King

IPC: H04N5/50

CPC classification number: H04N5/50 ,  H04H20/26 ,  H04H2201/60 ,  H04N5/4401 ,  H04N5/46 ,  H04N21/4263 ,  H04N21/4345 ,  H04N21/4383

Abstract: A receiver, such as an HDTV receiver or a Personal Video Recorder (PVR), includes a plurality of tuners. Each tuner is adapted to receive television signals (RF1,RF2) comprising a plurality of channels and communicate the received television signals to a processor. A channel search or autoprogramming routine is disclosed for the detection of channels in the television signal wherein each tuner simultaneously tunes and interrogates a different channel in order to expedite the search. If a signal is not detected on a channel, that channel may be tuned and interrogated by a second tuner. A list is compiled of all the channels that contain a television signal to aid the viewer's selection.

Abstract translation: 诸如HDTV接收机或个人录像机（PVR）的接收机包括多个调谐器。 每个调谐器适于接收包括多个通道的电视信号（RF1，RF2），并将所接收的电视信号传送到处理器。 公开了频道搜索或自动编程程序，用于检测电视信号中的频道，其中每个调谐器同时调谐和询问不同的频道以加速搜索。 如果在信道上没有检测到信号，则该信道可被第二调谐器调谐和询问。 编辑了包含电视信号以帮助观众选择的所有频道的列表。

公开(公告)号：US20080299926A1

公开(公告)日：2008-12-04

申请号：US12013333

申请日：2008-01-11

Applicant: Karl-Anton Becker ,  Philip Obergfell ,  Binh Ton That Giang

Inventor： Karl-Anton Becker ,  Philip Obergfell ,  Binh Ton That Giang

IPC: H04B1/18

CPC classification number: H03J1/0083 ,  H04H20/22 ,  H04H40/18 ,  H04H2201/60

Abstract: An example radio receiver and a method is provided for controlling a radio receiver having two tuners, and receiving a hybrid signal containing digital and analog broadcast signal components. According to the example method, a selection is made in the radio receiver to operate between at least the following operating modes of the receiver: (i) a first operating mode in which both tuners are tuned to the same broadcast hybrid signal and where one of the tuners is configured to receive the digital broadcast signal and the other tuner is configured to receive the analog broadcast signal; (ii) a second operating mode in which one of the tuners receiving the digital broadcast signal is the operating tuner and the other tuner is a search and check tuner; and (iii) a third operating mode in which one of the tuners receiving the analog broadcast signal is the operating tuner and the other tuner is a search and check tuner. In this example, the hybrid signal is received and the two tuners are controlled in accordance with the selected operating mode of the receiver.

Abstract translation: 提供了一种无线电接收机和方法，用于控制具有两个调谐器的无线电接收机，并且接收包含数字和模拟广播信号分量的混合信号。 根据示例方法，在无线电接收机中进行选择以在至少接收机的以下操作模式之间进行操作：（i）第一操作模式，其中两个调谐器被调谐到相同的广播混合信号，并且其中一个 调谐器被配置为接收数字广播信号，另一个调谐器被配置为接收模拟广播信号; （ii）第二操作模式，其中接收数字广播信号的调谐器之一是操作调谐器，另一个调谐器是搜索和检查调谐器; 以及（iii）第三操作模式，其中接收模拟广播信号的调谐器之一是操作调谐器，而另一个调谐器是搜索和检查调谐器。 在该示例中，接收混合信号，并且根据接收机的选择的操作模式来控制两个调谐器。

公开(公告)号：US20070249309A1

公开(公告)日：2007-10-25

申请号：US11735565

申请日：2007-04-16

Applicant: Akinori Komiyama

Inventor： Akinori Komiyama

IPC: H04B7/08 ,  H04B1/18 ,  H04B1/06

CPC classification number: H04B7/0871 ,  H04H20/22 ,  H04H20/26 ,  H04H40/18 ,  H04H2201/13 ,  H04H2201/60

Abstract: A diversity receiver includes first and second reception circuits using a superheterodyne principle. At stationary reception, reception of the audio signals and the data employing a phase diversity reception system is performed such that the signals received by the first reception antenna are supplied to the first reception circuit, the signals received by the second reception antenna are supplied to the second reception circuit, and phases of first and second intermediate-frequency signals are controlled and the first and second intermediate-frequency signals are added. At reception-frequency search, reception of the audio signals employing an antenna-switching diversity reception system is performed such that the signals received by at least one of the first and second antennas are supplied to the first reception circuit and reception of the data and the reception-frequency search are performed, and the signals received by the first and second antennas are supplied to the second reception circuit.

Abstract translation: 分集接收机包括使用超外差原理的第一和第二接收电路。 在静止接收时，执行音频信号的接收和使用相位分集接收系统的数据，使得由第一接收天线接收的信号被提供给第一接收电路，由第二接收天线接收的信号被提供给 第二接收电路，并且控制第一和第二中频信号的相位，并且添加第一和第二中频信号。 在接收频率搜索中，执行采用天线切换分集接收系统的音频信号的接收，使得由第一和第二天线中的至少一个接收的信号被提供给第一接收电路并接收数据， 执行接收频率搜索，并且由第一和第二天线接收的信号被提供给第二接收电路。

公开(公告)号：US20070089148A1

公开(公告)日：2007-04-19

申请号：US11546401

申请日：2006-10-12

Applicant: Ui-taek Oh ,  Houk Wang

Inventor： Ui-taek Oh ,  Houk Wang

IPC: H04N7/173 ,  H04N7/16

CPC classification number: H04N5/4401 ,  H04H20/26 ,  H04H2201/11 ,  H04H2201/60 ,  H04N5/50 ,  H04N17/004 ,  H04N21/4263 ,  H04N21/44209 ,  H04N21/482 ,  H04N21/6131

Abstract: An apparatus for providing a supplementary function of digital multimedia broadcasting includes a control unit that receives a selected instruction message for a digital multimedia broadcasting signal input by a user, a demodulating unit that receives a digital multimedia broadcasting signal corresponding to the selected instruction message by using at least one tuner, a reception sensitivity confirming unit that confirms the reception sensitivity of the received digital multimedia broadcasting signal, and a determining unit that determines whether the received digital multimedia broadcasting signal is output in accordance with the confirmed reception sensitivity.

Abstract translation: 一种用于提供数字多媒体广播的附加功能的装置，包括：接收用户输入的数字多媒体广播信号的所选指令消息的控制单元;解调单元，其通过使用与所选择的指令消息对应的数字多媒体广播信号 至少一个调谐器，接收灵敏度确认单元，其确认所接收的数字多媒体广播信号的接收灵敏度;以及确定单元，确定接收到的数字多媒体广播信号是否根据确认的接收灵敏度被输出。

公开(公告)号：US07120404B2

公开(公告)日：2006-10-10

申请号：US09905649

申请日：2001-07-13

Applicant: Stefan Gierl

Inventor： Stefan Gierl

IPC: H04B7/08

CPC classification number: H04B1/16 ,  H03J1/0083 ,  H04B1/3805 ,  H04B7/082 ,  H04H20/22 ,  H04H2201/13 ,  H04H2201/60

Abstract: A method and apparatus for operating a radio reception system, which comprises a plurality of receivers assigned to a common output device, in which one of the receivers is designated as audio receiver and is tuned to a frequency of a radio transmitter, and outputs a signal received from the transmitter to the output device. At least one second receiver is designated as search receiver, and continuously searches its own reception frequency band for a frequency of the same transmitter. The system changes to a frequency of this transmitter, which was found by the search receiver, if the quality of the signal received by the audio receiver falls below a certain limit.

公开(公告)号：US06628930B1

公开(公告)日：2003-09-30

申请号：US09554837

申请日：2000-07-13

Applicant: Lothar Vogt ,  Karl-Heinz Black

Inventor： Lothar Vogt ,  Karl-Heinz Black

IPC: H04B118

CPC classification number: H04B1/26 ,  H03J1/0083 ,  H04B1/0003 ,  H04B1/0007 ,  H04H20/22 ,  H04H2201/13 ,  H04H2201/60

Abstract: A radio receiver having a circuit arrangement for checking the quality of reception at an alternative frequency to a received transmit frequency. The radio receiver has two tuners for converting the received signals to two different intermediate frequencies and a switch, which is preferably switched by a microprocessor, for optionally forwarding signals from signal processing branches that are each connected to one of the tuners. This reduces the cost of implementing the second receiver, at the same time reducing the barely noticeable impairment of the set program when checking the quality of reception at the alternate frequency. The latter is achieved by positioning the switch upstream from an analog-digital converter, operating at a sampling frequency, of an intermediate frequency stage. The different intermediate frequencies are selected so that they both meet the following condition: f0=(n+R)fa where n is a natural number, and 0≦R≦1 applies. An intermediate frequency filter, a demodulator, possibly a decoder for additional signals, and a test unit for determining signal quality are connected to the analog-digital converter.

Abstract translation: 一种无线电接收机，具有电路装置，用于以接收的发射频率检查在替代频率下的接收质量。 无线电接收机具有用于将接收到的信号转换成两个不同中间频率的两个调谐器，并且优选地由微处理器切换用于可选地转发来自连接到调谐器之一的信号处理分支的信号的开关。 这降低了实现第二接收机的成本，同时在检查在替代频率下的接收质量时减少了设定节目几乎不显着的损害。 后者通过将开关定位在中频阶段的以采样频率工作的模拟数字转换器的上游来实现。 选择不同的中间频率使得它们都满足以下条件：其中n是自然数，并且0 <= R <= 1。 模数转换器连接中频滤波器，解调器，可能用于附加信号的解码器以及用于确定信号质量的测试单元。

公开(公告)号：US6141536A

公开(公告)日：2000-10-31

申请号：US102587

申请日：1998-06-23

Applicant: Milan Cvetkovic ,  David John McCall ,  Martin Gerard Page

Inventor： Milan Cvetkovic ,  David John McCall ,  Martin Gerard Page

IPC: H04B7/08 ,  H04H40/72 ,  H04B1/18

CPC classification number: H04H20/22 ,  H04B7/0871 ,  H04B7/0825 ,  H04H2201/13 ,  H04H2201/60 ,  H04H40/72

Abstract: An RDS receiver having dual tuners and dual antennas operates in two distinct modes, a diversity mode and a non-diversity mode. Diversity mode is when both tuners are tuned to a signal with the same program audio content and the audio from both tuners is blended together in a manner to minimize the effects of multipath distortion. In non-diversity mode, a forcing circuit isolates the tuner output signals so that one tuner provides the audio output while the other can be retuned to any other frequency for purposes of gathering RDS data.

Abstract translation: 具有双调谐器和双天线的RDS接收机以两种不同的模式操作，分集模式和非分集模式。 分集模式是当两个调谐器被调谐到具有相同节目音频内容的信号，并且来自两个调谐器的音频被混合在一起以最小化多径失真的影响的方式时。 在非分集模式下，强制电路隔离调谐器输出信号，以便一个调谐器提供音频输出，而另一个调谐器可以重新调谐到任何其他频率以收集RDS数据。