公开(公告)号：US20120162529A1

公开(公告)日：2012-06-28

申请号：US13101352

申请日：2011-05-05

申请人： Chih-Chun Ho ,  Chih-Yuan Ho

发明人： Chih-Chun Ho ,  Chih-Yuan Ho

IPC分类号： H04N5/52

CPC分类号： H04N5/52 ,  H04N21/4122 ,  H04N21/43632

摘要： An automatic video gain adjustment method in which an automatic gain equalizer is used. The method includes steps of: using a processor to read and analyze a video signal and compare the video signal with a standard value to judge whether the video signal matches the standard value; using a gain regulator to automatically adjust the amplitude of the video signal in case the video signal fails to match the standard value, the gain regulator then generating an adjusted video signal; and using the processor to receive the adjusted video signal and transmit the adjusted video signal to a remote-end receiving device. By means of the automatic video gain adjustment method, the video signal can be automatically and more conveniently adjusted to match the standard value.

摘要翻译： 一种使用自动增益均衡器的自动视频增益调整方法。 该方法包括以下步骤：使用处理器来读取和分析视频信号，并将视频信号与标准值进行比较，以判断视频信号是否与标准值相匹配; 在视频信号不符合标准值的情况下，使用增益调节器自动调整视频信号的幅度，增益调节器然后产生经调整的视频信号; 以及使用所述处理器来接收经调整的视频信号，并将所调整的视频信号发送到远程端接收设备。 通过自动视频增益调整方式，可以自动更方便地调整视频信号，使之符合标准值。

公开(公告)号：US08185070B2

公开(公告)日：2012-05-22

申请号：US11475203

申请日：2006-06-27

申请人： Hyun-Chul Choi

发明人： Hyun-Chul Choi

IPC分类号： H04B1/18

CPC分类号： H04B1/26 ,  H03J1/0075 ,  H03J1/0091 ,  H03J7/18 ,  H04N5/4401 ,  H04N5/455 ,  H04N5/46 ,  H04N5/50 ,  H04N5/52 ,  H04N21/235 ,  H04N21/2383 ,  H04N21/4263 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/4384

摘要： A broadcast system and a channel setting method therein are provided. The broadcast system includes a channel searching unit for setting a center frequency for at least one broadcasting channel, and a searching frequency of n-th and (n+1)-th channels according to each center frequency, and storing channel information obtained from broadcast information received through the n-th or (n+1)-th channel when a broadcast signal is detected at the searching frequency.

摘要翻译： 提供了一种广播系统及其通道设定方法。 广播系统包括用于根据每个中心频率设置至少一个广播频道的中心频率和第n和第（n + 1）个频道的搜索频率的频道搜索单元，并且存储从广播获得的频道信息 当在搜索频率处检测到广播信号时，通过第n或第（n + 1）个频道接收的信息。

公开(公告)号：US20110234909A1

公开(公告)日：2011-09-29

申请号：US13044725

申请日：2011-03-10

申请人： Masato Ishii ,  Yoshihiro Yoshida ,  Toshimasa Adachi ,  Shigehito Saigusa ,  Takayuki Takida

发明人： Masato Ishii ,  Yoshihiro Yoshida ,  Toshimasa Adachi ,  Shigehito Saigusa ,  Takayuki Takida

IPC分类号： H03M1/12 ,  H04N5/21

CPC分类号： H03M3/486 ,  H03M3/49 ,  H04B1/0021 ,  H04B1/06 ,  H04H40/00 ,  H04H40/27 ,  H04N5/52 ,  H04N7/102 ,  H04N21/42638 ,  H04N21/4382 ,  Y02D70/168 ,  Y02D70/40

摘要： According to one embodiment, a receiving device includes an amplifier for amplifying signals received from the outside, a decimation filter for decimating signals converted to digital signals, a channel selection filter for selecting a desired wave included in signals from the decimation filter, and a DAGC for amplifying the desired wave selected by the channel selection filter.

摘要翻译： 根据一个实施例，接收装置包括用于放大从外部接收的信号的放大器，用于抽取转换成数字信号的信号的抽取滤波器，用于选择包括在抽取滤波器的信号中的期望波的信道选择滤波器，以及DAGC 用于放大由频道选择滤波器选择的期望波。

公开(公告)号：US20110228171A1

公开(公告)日：2011-09-22

申请号：US13152469

申请日：2011-06-03

申请人： JANARDHANA BHAT ,  MAARTEN HEUVELMAN

发明人： JANARDHANA BHAT ,  MAARTEN HEUVELMAN

IPC分类号： H04N5/50 ,  H04N5/44 ,  H04B1/06

CPC分类号： H03F3/19 ,  H03F1/0272 ,  H03F1/32 ,  H03F2200/111 ,  H03F2200/249 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/451 ,  H03G1/0088 ,  H03G3/3052 ,  H04B1/109 ,  H04N5/50 ,  H04N5/52 ,  H04N17/045 ,  H04N21/44209

摘要： A multi-channel receiver (200) comprises: an input (111) for receiving a wideband signal potentially comprising multiple channels, a tuner stage (110), a wideband amplifier (201) connected between the input (111) and the tuner (110), a controllable switch (202) bridging the amplifier (201) and a switch controller (203) designed to generate a switch control signal (BSC).For controlling the switch, the switch controller (203) is designed to measure at least one signal quality parameter and to generate its switch control signal (BSC) on the basis of the measured parameter. The decision of switching the switch (202) to its open state (amplifier active) is exclusively taken during at least one time interval when the receiver is switched to a channel.

摘要翻译： 多通道接收器（200）包括：用于接收潜在地包括多个通道的宽带信号的输入（111），调谐器级（110），连接在输入（111）和调谐器（110）之间的宽带放大器 ），桥接放大器（201）的可控开关（202）和设计成产生开关控制信号（BSC）的开关控制器（203）。 为了控制开关，开关控制器（203）被设计成基于测量的参数来测量至少一个信号质量参数并产生其开关控制信号（BSC）。 当开关（202）切换到通道时，将开关（202）切换到其打开状态（放大器有效）的决定仅在至少一个时间间隔内采取。

公开(公告)号：US07983365B2

公开(公告)日：2011-07-19

申请号：US10530307

申请日：2003-10-01

申请人： Janardhana Bhat ,  Maarten Heuvelman

发明人： Janardhana Bhat ,  Maarten Heuvelman

IPC分类号： H04L27/08

CPC分类号： H03F3/19 ,  H03F1/0272 ,  H03F1/32 ,  H03F2200/111 ,  H03F2200/249 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/451 ,  H03G1/0088 ,  H03G3/3052 ,  H04B1/109 ,  H04N5/50 ,  H04N5/52 ,  H04N17/045 ,  H04N21/44209

摘要： A multi-channel receiver (200) comprises: an input (111) for receiving a wideband signal potentially comprising multiple channels, a tuner stage (110), a wideband amplifier (201) connected between the input (111) and the tuner (110), a controllable switch (202) bridging the amplifier (201) and a switch controller (203) designed to generate a switch control signal (BSC). For controlling the switch, the switch controller (203) is designed to measure at least one signal quality parameter and to generate its switch control signal (BSC) on the basis of the measured parameter. The decision of switching the switch (202) to its open state (amplifier active) is exclusively taken during at least one time interval when the receiver is switched to a channel.

摘要翻译： 多通道接收器（200）包括：用于接收潜在地包括多个通道的宽带信号的输入（111），调谐器级（110），连接在输入（111）和调谐器（110）之间的宽带放大器 ），桥接放大器（201）的可控开关（202）和设计成产生开关控制信号（BSC）的开关控制器（203）。 为了控制开关，开关控制器（203）被设计成基于测量的参数来测量至少一个信号质量参数并产生其开关控制信号（BSC）。 当开关（202）切换到通道时，将开关（202）切换到其打开状态（放大器有效）的决定仅在至少一个时间间隔内采取。

公开(公告)号：US20110050748A1

公开(公告)日：2011-03-03

申请号：US12855771

申请日：2010-08-13

申请人： Yutaka Tsuchiya ,  Osamu Sagano

发明人： Yutaka Tsuchiya ,  Osamu Sagano

IPC分类号： G09G5/10

CPC分类号： H04N5/52 ,  G09G3/003 ,  G09G3/20 ,  G09G2320/0626 ,  G09G2360/16 ,  H04N5/57 ,  H04N13/00 ,  H04N21/4318 ,  H04N21/44008

摘要： An image display apparatus includes: a display panel; a calculation circuit that calculates a luminance control value, which is a parameter for controlling display luminance, for each frame of a video signal to be displayed on the display panel; and a luminance control circuit that controls the display luminance of the frame using the luminance control value calculated by the calculation circuit. When the video signal is a video signal in which one image is constituted by a plurality of frames, the luminance control circuit applies a same luminance control value to the plurality of frames constituting one image, or decreases the difference of the luminance control values applied to the plurality of frames constituting one image to be lower than a predetermined value.

摘要翻译： 一种图像显示装置，包括：显示面板; 计算电路，对于要显示在显示面板上的视频信号的每帧，计算作为用于控制显示亮度的参数的亮度控制值; 以及亮度控制电路，其使用由所述计算电路计算出的亮度控制值来控制所述帧的显示亮度。 当视频信号是由多个帧构成一个图像的视频信号时，亮度控制电路对构成一个图像的多个帧应用相同的亮度控制值，或者减小应用于 构成一个图像的多个帧低于预定值。

公开(公告)号：US07830455B2

公开(公告)日：2010-11-09

申请号：US11557087

申请日：2006-11-06

申请人： Kuan-Hong Hsieh ,  Wen-Chuan Lian ,  Wen-Sheng Tsai ,  Xiao-Guang Li ,  Bing Li

发明人： Kuan-Hong Hsieh ,  Wen-Chuan Lian ,  Wen-Sheng Tsai ,  Xiao-Guang Li ,  Bing Li

IPC分类号： H04N5/52 ,  H04N5/50

CPC分类号： H04N5/52 ,  H04N21/4383 ,  H04N21/439 ,  H04N21/4852

摘要： The present invention relates to method for managing gain value for each channel of a TV set, includes steps: signaling a tuner to receive broadcasting signals of the channel in response to a channel selection command; reading a predetermined gain value of the channel from a setting table; amplifying and outputting audio signals extracted from the broadcasting signals of the channel according to the predetermined gain value of the channel; signaling a gain control unit to adjust a current gain value to an adjusted gain value if receiving a gain adjustment command; amplifying the audio signals of the channel according to the adjusted gain value; calculating an integrated gain value according to the adjusted gain value and the predetermined gain value; and updating the predetermined gain value of the channel using the integrated gain value. The present invention also provides a corresponding TV set.

摘要翻译： 本发明涉及一种用于管理电视机的每个频道的增益值的方法，包括以下步骤：响应于频道选择命令，指示调谐器接收频道的广播信号; 从设定表读取通道的预定增益值; 根据信道的预定增益值放大并输出从信道的广播信号中提取的音频信号; 发送增益控制单元，如果接收到增益调整命令，则将当前增益值调整为调整后的增益值; 根据调整后的增益值放大信道的音频信号; 根据调整后的增益值和预定的增益值计算积分增益值; 以及使用所述积分增益值来更新所述信道的预定增益值。 本发明还提供了相应的电视机。

公开(公告)号：US20100225822A1

公开(公告)日：2010-09-09

申请号：US12399985

申请日：2009-03-09

申请人： Jeng-Shiann Jiang ,  Pei-Jun Shih ,  Kuan-Hung Chen

发明人： Jeng-Shiann Jiang ,  Pei-Jun Shih ,  Kuan-Hung Chen

IPC分类号： H04N5/52 ,  H03M1/06 ,  H04N5/44

CPC分类号： H04N5/4401 ,  H03M1/185 ,  H04N5/52 ,  H04N21/4382 ,  H04N21/4383

摘要： A digital receiver includes an analog front-end circuit, an automatic-gain controller, a compensation circuit, and a demodulator. The analog front-end circuit receives an input signal, adjusts an average amplitude of the input signal, and converts the adjusted input signal to generate a digital signal according to a control signal. The automatic-gain controller is coupled to the analog front-end circuit for generating the control signal feedback to the analog front-end circuit according to the digital signal. The compensation circuit is coupled to the analog front-end circuit for detecting an average amplitude of the digital signal to generate a detecting result and for determining whether to compensate the average amplitude of the digital signal to generate a compensated digital signal according to the detecting result. The demodulator is coupled to the compensation circuit for demodulating the compensated digital signal to generate an output signal.

摘要翻译： 数字接收机包括模拟前端电路，自动增益控制器，补偿电路和解调器。 模拟前端电路接收输入信号，调整输入信号的平均幅度，并根据控制信号转换调整后的输入信号以产生数字信号。 自动增益控制器耦合到模拟前端电路，用于根据数字信号产生对模拟前端电路的控制信号反馈。 补偿电路耦合到模拟前端电路，用于检测数字信号的平均幅度以产生检测结果，并且用于根据检测结果确定是否补偿数字信号的平均幅度以产生补偿的数字信号 。 解调器耦合到补偿电路，用于解调补偿的数字信号以产生输出信号。

公开(公告)号：US07750978B2

公开(公告)日：2010-07-06

申请号：US12350023

申请日：2009-01-07

申请人： Daniel Q. Zhu ,  Hulyalkar N. Samir ,  Binning Chen ,  Raul A. Casas ,  Dongsheng Wu

发明人： Daniel Q. Zhu ,  Hulyalkar N. Samir ,  Binning Chen ,  Raul A. Casas ,  Dongsheng Wu

IPC分类号： H04N5/44

CPC分类号： H04N5/455 ,  H04N5/4446 ,  H04N5/52

摘要： An audio/video separator provides a high-performance and cost-effective solution to analog TV reception with only one A/D converter and a minimum of analog IF components. The apparatus may operate on a digitized TV signal and, when integrated with a digital video processor, process video signals while separating audio signals. The resultant audio and video signals may be considered to have excellent signal quality due to highly optimized demodulation architecture and digital signal processing techniques on both audio and video data paths.

摘要翻译： 音频/视频分离器为仅具有一个A / D转换器和最少的模拟IF组件的模拟电视接收提供了高性能和经济高效的解决方案。 该装置可以在数字化的电视信号上操作，并且当与数字视频处理器集成时，处理视频信号，同时分离音频信号。 由于在音频和视频数据路径上的高度优化的解调架构和数字信号处理技术，所得到的音频和视频信号可能被认为具有优异的信号质量。

公开(公告)号：US07672654B2

公开(公告)日：2010-03-02

申请号：US11453211

申请日：2006-06-14

申请人： Kunio Okada

发明人： Kunio Okada

IPC分类号： H04B1/06

CPC分类号： H04B1/28 ,  H03G3/3068 ,  H04H40/18 ,  H04N5/52

摘要： A receiver has an amplifier for amplifying a TV broadcast signal. A mixer mixes the amplified signal with an oscillation signal corresponding to a channel selection signal and generates a low frequency signal. A bandpass filter generates a signal having an amplitude corresponding to the low frequency signal. Electric field intensity filtering circuits filter the low frequency signal. A subtractor calculates a difference between the output from the filtering circuits and the output from the bandpass filter to generate a difference signal which is negatively fed back signal to the amplifier when an amplitude of the difference signal is larger than a predetermined value. The signal from the filtering circuit is the negative feed back signal when the amplitude of the difference signal is not larger than the predetermined value. An AGC signal corresponding to an electric field intensity of the output from the mixer is inputted to the amplifier.

摘要翻译： 接收机具有用于放大TV广播信号的放大器。 混频器将放大的信号与对应于信道选择信号的振荡信号进行混频，并产生低频信号。 带通滤波器产生具有对应于低频信号的振幅的信号。 电场强度滤波电路对低频信号进行滤波。 减法器计算滤波电路的输出与带通滤波器的输出之间的差值，以产生当差分信号的幅度大于预定值时向放大器产生负反馈信号的差分信号。 当差分信号的振幅不大于预定值时，来自滤波电路的信号是负反馈信号。 对应于来自混频器的输出的电场强度的AGC信号被输入到放大器。