公开(公告)号：US06731347B1

公开(公告)日：2004-05-04

申请号：US09540150

申请日：2000-03-31

申请人： Hiroshi Takano ,  Satoshi Kobayashi ,  Kazuhiro Suzuki ,  Makoto Sato ,  Yuji Kimura

发明人： Hiroshi Takano ,  Satoshi Kobayashi ,  Kazuhiro Suzuki ,  Makoto Sato ,  Yuji Kimura

IPC分类号： H04N546

CPC分类号： H04N5/46 ,  G06Q30/06 ,  H04N5/4401 ,  H04N21/42638 ,  H04N21/42692 ,  H04N21/43632 ,  H04N21/4424 ,  H04N21/6143 ,  H04R3/00

摘要： A method and apparatus for switching input terminals based on device capability are disclosed. The method supplies a digital signal and an analog signal to a device. The method includes examination of whether or not a device is receiving a digital signal in an eligible format. The method also selects an analog input terminal to receive an analog signal unless the digital signal is being provided in the eligible format. The apparatus includes a digital input terminal to receive a digital signal, an analog input terminal to receive an analog signal, an IEEE1394 interface coupled with the digital input terminal, a HD decoder coupled with the IEEE1394 interface, a memory and a selector which selects the digital input terminal if the digital signal is in an eligible format for the device. The apparatus otherwise selects the analog input terminal. The selector may include a controller for examining whether or not the decoder is capable of decoding the digital signal, and a switch controlled by the controller so as to select the digital input terminal if the decoder is capable of decoding the digital signal, otherwise to select the analog input terminal.

摘要翻译： 公开了一种基于设备能力切换输入端的方法和装置。 该方法向设备提供数字信号和模拟信号。 该方法包括检查设备是否以合格格式接收数字信号。 该方法还选择模拟输入端子来接收模拟信号，除非数字信号以符合条件的格式提供。 该装置包括用于接收数字信号的数字输入端子，用于接收模拟信号的模拟输入端子，与数字输入端子耦合的IEEE1394接口，与IEEE1394接口耦合的HD解码器，选择存储器和选择器 数字输入端子，如果数字信号为设备的合格格式。 该设备否则选择模拟输入端子。 选择器可以包括用于检查解码器是否能够解码数字信号的控制器，以及由控制器控制的开关，以便如果解码器能够解码数字信号，则选择数字输入端，否则选择 模拟输入端子。

公开(公告)号：US06501510B1

公开(公告)日：2002-12-31

申请号：US09340926

申请日：1999-06-28

申请人： Yang-choon Moon

发明人： Yang-choon Moon

IPC分类号： H04N546

CPC分类号： H04N5/46 ,  H04N5/4401 ,  H04N21/42638

摘要： A digital/analog broadcast signal processing unit is provided by which a video/audio signal can be processed by receiving an analog broadcast signal and a digital broadcast signal and switching a signal processing block which is used in common for digital broadcast signal processing and analog broadcast signal processing. The digital/analog broadcast signal processing unit includes a digital broadcast signal processor for demodulating the digital broadcast signal tuned by the tuner, demultiplexing the demodulated digital broadcast signal into video and audio signals, and decoding the audio and video signals; an analog broadcast signal demodulator for demultiplexing the analog broadcast signal tuned by the tuner into analog video and audio signals and demodulating the video and audio signals; an audio switching unit for receiving the audio signals output from at least one of the digital broadcast signal processor and analog broadcast signal demodulator and selecting one input signal; a video switching unit for receiving the video signals output from at least one of the digital broadcast signal processor and analog broadcast signal demodulator and selecting one input signal; an audio signal processing block for receiving the output signal of the audio switching unit, for compensating characteristics of the audio signal, and for outputting the compensated audio signal via a speaker; and a video signal processing block for receiving the output signal of the video switching unit, for compensating characteristics of the video signal, and for outputting the compensated video signal. The digital/analog broadcast signal processing unit further includes a controller for determining whether the digital broadcast signal is received, and generating one of the first switching control signal and the second switching control signal for selecting one signal of the audio and video switching units according to one of a presence or absence of the digital broadcast signal, and a selection of a user via a key input unit connected to the controller.

公开(公告)号：US06480237B1

公开(公告)日：2002-11-12

申请号：US09475134

申请日：1999-12-30

申请人： Jung Sig Jun

发明人： Jung Sig Jun

IPC分类号： H04N546

CPC分类号： H04N5/4401 ,  H04N5/211 ,  H04N5/46 ,  H04N21/42607

摘要： A method and system for detecting a VSB mode in a digital TV receiver is disclosed. The system includes first and second VSB mode detectors implemented before and after a channel equalizer. The first VSB mode detector detects a VSB mode from a signal before channel-equalization, the second VSB mode detector detects a VSB mode from a channel-equalized signal, and one of the detected VSB modes is output to the channel equalizer as the finally detected VSB mode.

摘要翻译： 公开了一种在数字电视接收机中检测VSB模式的方法和系统。 该系统包括在信道均衡器之前和之后实现的第一和第二VSB模式检测器。 第一VSB模式检测器从信道均衡之前的信号检测VSB模式，第二VSB模式检测器从信道均衡信号检测VSB模式，并且检测到的VSB模式中的一个被输出到信道均衡器，作为最终检测到的 VSB模式。

公开(公告)号：US06388713B1

公开(公告)日：2002-05-14

申请号：US09114967

申请日：1998-07-14

申请人： Yukimi Saiki ,  Masahisa Tsukahara ,  Toshimitsu Watanabe ,  Kazuhiko Yoshizawa

发明人： Yukimi Saiki ,  Masahisa Tsukahara ,  Toshimitsu Watanabe ,  Kazuhiko Yoshizawa

IPC分类号： H04N546

CPC分类号： H04N5/58 ,  H04N5/44543 ,  H04N5/57 ,  H04N21/4318

摘要： A high definition display unit which demodulates, decodes, and processes in relation to chroma and displays a television signal in which a PI (picture) signal and an SI (service information) signal are mixed. A changeover switch 13 connected to an image quality adjusting circuit in a video chroma processing circuit 7 is opened or closed according to an on-off signal S1, showing the superposed period of both signals detected by a decoder 4. If the above on-off signal S1 is on, the changeover switch 13 is opened and the adjustment of image quality is disabled. Therefore, SI display never disappears due to the adjustment of image quality, and the quality of an image can be also adjusted according to an ambient status. Other approaches are also disclosed from preventing image quality adjustment of at least portions of a displayed image containing an information image.

摘要翻译： 高清晰度显示单元，其对色度进行解调，解码和处理，并显示混合了PI（图像）信号和SI（服务信息）信号的电视信号。 连接到视频色度处理电路7中的图像质量调节电路的切换开关13根据开关信号S1打开或关闭，该开关信号表示由解码器4检测到的两个信号的叠加周期。如果上述开关 信号S1导通，切换开关13断开，图像质量的调整被禁用。 因此，由于图像质量的调整，SI显示器不会消失，并且还可以根据环境状态来调整图像的质量。 还通过防止包含信息图像的显示图像的至少部分的图像质量调整来公开其他方法。

公开(公告)号：US06373527B1

公开(公告)日：2002-04-16

申请号：US09109935

申请日：1998-07-02

申请人： Tae-Sung Lee

发明人： Tae-Sung Lee

IPC分类号： H04N546

CPC分类号： H04N5/45 ,  H04N5/46 ,  H04N21/42638 ,  H04N21/4316 ,  H04N21/440218 ,  H04N21/482

摘要： A high definition television (HDTV) for displaying an image contained in a broadcasting signal of mutually different broadcasting systems is provided. The HDTV restores a first image signal which is an image signal contained in an HD digital broadcasting signal and a second image signal which is an image signal contained in an NTSC analog broadcasting signal which are input from an antenna and an external input port, and format-converts each restored image signal into an image signal having a predetermined frame format. An image signal synthesizer including two memories and a timing signal generator time-base-compresses the format-converted first and second image signals so as to correspond to a main picture and a sub-picture of a PIP image to be displayed, and synthesizes the first and second image signals into a single PIP image signal. A CRT displays a PIP image contained in the PIP image signal on a screen.

摘要翻译： 提供了用于显示包含在相互不同的广播系统的广播信号中的图像的高分辨率电视（HDTV）。 HDTV恢复作为HD数字广播信号中包含的图像信号的第一图像信号和作为从天线和外部输入端口输入的NTSC模拟广播信号中包含的图像信号的第二图像信号，并且格式化 将每个恢复的图像信号转换成具有预定帧格式的图像信号。 包括两个存储器的图像信号合成器和定时信号发生器时基压缩格式转换的第一和第二图像信号，以对应于要显示的PIP图像的主图像和子图像，并且合成 第一和第二图像信号转换为单个PIP图像信号。 CRT在屏幕上显示包含在PIP图像信号中的PIP图像。

公开(公告)号：US06366326B1

公开(公告)日：2002-04-02

申请号：US08818591

申请日：1997-03-18

申请人： Mehmet Kemal Ozkan ,  Kumar Ramaswamy ,  John Sidney Stewart

发明人： Mehmet Kemal Ozkan ,  Kumar Ramaswamy ,  John Sidney Stewart

IPC分类号： H04N546

CPC分类号： H04N5/4401 ,  H04L1/0009 ,  H04L1/0046 ,  H04L27/0012 ,  H04N21/4305 ,  H04N21/4345 ,  H04N21/4382 ,  H04N21/4383 ,  H04N21/4621 ,  H04N21/482 ,  H04N21/6112

摘要： A receiver system automatically adaptively tunes to broadcast signals that are variable in the number of channels that are transmitted, their signal coding type and their modulation format. A system receives a digital bitstream representing video information encoded in one of a plurality of different formats, and transmitted on one of a plurality of transmission channels. In the system, a method for acquiring data transmitted on a transmission channel involves selecting a transmission channel from the plurality of channels and selecting a modulation format. The method also involves tuning to receive the modulation format and determining whether valid data is being received on the selected transmission channel. The method steps are repeated until valid data is received. The method may also involve selecting a coding type, and tuning to receive the coding type. In addition, the method of acquiring data may involve capturing program guide information and re-tuning to receive a transmission channel in response to the program guide information.

摘要翻译： 接收机系统自动自适应地调谐到发射信道数量可变的广播信号，它们的信号编码类型及其调制格式。 系统接收表示以多种不同格式之一编码的视频信息的数字比特流，并在多个传输信道之一上发送。 在系统中，用于获取在传输信道上发送的数据的方法包括从多个信道中选择传输信道并选择调制格式。 该方法还涉及调谐以接收调制格式并确定是否在所选传输信道上接收有效数据。 重复方法步骤，直到收到有效的数据。 该方法还可以包括选择编码类型，并且调谐以接收编码类型。 此外，获取数据的方法可以涉及捕获节目指南信息和重新调谐以响应于节目指南信息接收传输信道。

公开(公告)号：US06362853B1

公开(公告)日：2002-03-26

申请号：US09297449

申请日：1999-09-14

申请人： Motoki Ouchiyama ,  Hiroshi Yamashita ,  Motosuke Irie ,  Satoru Suzuki

发明人： Motoki Ouchiyama ,  Hiroshi Yamashita ,  Motosuke Irie ,  Satoru Suzuki

IPC分类号： H04N546

CPC分类号： G09G1/167 ,  G09G1/16 ,  G09G2340/0442 ,  H04N5/46 ,  H04N21/4113 ,  H04N21/440272

摘要： To provide a method and device for picture display capable of performing suitable picture display corresponding to various video signals. Kind of an input video signal S1 is determined based on prestored characteristic information on video signals, and the input video signal S1 is displayed in picture according to the characteristic information based on the above determined result, so that a suitable displayed picture can be obtained corresponding to the input video signal 1.

摘要翻译： 提供能够进行与各种视频信号对应的适当图像显示的图像显示的方法和装置。 基于预先存储的视频信号的特征信息来确定输入视频信号S1的种类，并且根据基于上述确定结果的特征信息将输入视频信号S1显示在图像中，从而可以获得对应的显示图像 到输入视频信号1。

公开(公告)号：US06342928B1

公开(公告)日：2002-01-29

申请号：US09366566

申请日：1999-08-04

申请人： Koji Ohira

发明人： Koji Ohira

IPC分类号： H04N546

CPC分类号： H03J5/244

摘要： A receiver includes two input terminals. A VHF broadcast signal over a 6-MHz band channel is inputted through one input terminal, while an FM broadcast signal over an approximate 100-kHz band channel is inputted through the other input terminal. The other input terminal is connected with a trap circuit for band width reduction. This trap circuit causes attenuation in signal components over channels close to a desired channel except that over the desired channel with a band of approximately 100 kHz. An analog switch inputs selectively the VHF broadcast signal and the FM broadcast signal attenuated in the signal components to a tuning circuit having a tuning band width of approximately 6 MHz. When an FM broadcast signal is selected, an FM broadcast signal only over a desired channel is outputted from the tuning circuit.

摘要翻译： 接收机包括两个输入端。 通过一个输入端子输入6MHz频带信道上的VHF广播信号，而通过另一个输入端口输入大约100-kHz频带信道上的FM广播信号。 另一个输入端子与陷波电路连接，用于带宽降低。 该陷波电路在靠近所需信道的信道上导致信号分量中的衰减，除了在具有大约100kHz的频带的期望信道之外。 模拟开关选择性地将VHF广播信号和FM广播信号在信号分量中衰减到具有大约6MHz的调谐带宽的调谐电路。 当选择FM广播信号时，仅在所需频道上的FM广播信号从调谐电路输出。

公开(公告)号：US06252590B1

公开(公告)日：2001-06-26

申请号：US08950566

申请日：1997-10-15

申请人： Kunihito Sawai ,  Yoshizumi Kuze

发明人： Kunihito Sawai ,  Yoshizumi Kuze

IPC分类号： H04N546

CPC分类号： G06F3/14 ,  G09G5/14 ,  G09G5/395 ,  G09G2340/0407 ,  G09G2340/0442 ,  G09G2360/02 ,  H04N5/46 ,  H04N5/765 ,  H04N5/775 ,  H04N7/0122 ,  H04N9/7921 ,  H04N21/4122 ,  H04N21/4143 ,  H04N21/42646 ,  H04N21/4312 ,  H04N21/440272 ,  H04N21/4621

摘要： An image-processing apparatus displays different UI pictures suitable for the resolutions in accordance with aspect ratios 16:9 and 4:3, respectively. UI picture data to form a UI picture is divided into wide-mode parts only used when the wide mode is set, normal-mode parts only used when the normal mode is set, and common parts shared between both modes. The divided parts are stored in a storage device. When the wide mode is set, the predetermined widemode parts and the common-parts are selected. When the normal mode is set, the predetermined normal-mode parts and the common parts are selected. The selected parts are mapped in predetermined positions of an effective display screen (image-processing region). Thus, the UI picture is formed. With this arrangement, the advantage of the increased resolution in accordance with an aspect ratio of 16:9 can be effectively utilized. Further, even though the resolution is changed to the wide mode, the displayed UI picture does not appear much different from that which would be displayed in the normal mode, thereby making the user comfortable with the resulting image.

摘要翻译： 图像处理装置分别根据宽高比16：9和4：3显示适合于分辨率的不同UI画面。 用户界面图形数据形成一个UI画面，分为仅在宽模式设置时使用的宽模式部分，仅在正常模式设置时才使用普通模式部件，而在两种模式之间共享共用部分。 分割的部件存储在存储装置中。 当设置宽模式时，选择预定的模式部分和公共部分。 当设定正常模式时，选择预定的正常模式部分和公共部分。 所选择的部分被映射到有效显示屏幕（图像处理区域）的预定位置。 因此，形成UI画面。 通过这种布置，可以有效地利用根据16:9的纵横比提高分辨率的优点。 此外，即使分辨率改变为宽模式，所显示的UI图像与在正常模式中将显示的UI图片不显着不同，从而使用户对所得到的图像感到舒适。

公开(公告)号：US06188447B1

公开(公告)日：2001-02-13

申请号：US08918842

申请日：1997-08-26

申请人： Georg Rudolph ,  Michael Daginnus ,  Ralf Bösche

发明人： Georg Rudolph ,  Michael Daginnus ,  Ralf Bösche

IPC分类号： H04N546

CPC分类号： H04N5/44 ,  H04B7/12

摘要： A frequency diversity system for use in mobile reception of television and RF signals in the meter or decimeter wavelength, such as for use with a mobile television having a first receiver, an additional receiver and a control and analysis circuit. The additional receiver detects all incoming frequencies corresponding to a preset program and switches the main receiver to an incoming frequency of a higher quality. The receiver is able to identify the frequencies corresponding to the desired program through a transmitter identification code, which is added to each signal. This code is usually a VPS identification signal. The control and analysis circuit compares the incoming frequencies to the frequency of the signal transmitted by the television receiver to determine the highest quality signal. In order to accelerate the process, the system processes local position coordinates of the television so that the frequencies analyzed are only those expected within the coverage area of the television.

摘要翻译： 一种频率分集系统，用于以米或分米波长的电视和RF信号的移动接收，例如用于具有第一接收机，附加接收机和控制和分析电路的移动电视。 附加接收器检测与预设程序相对应的所有输入频率，并将主接收机切换到更高质量的输入频率。 接收机能够通过发射机识别码识别与期望节目相对应的频率，该发射机识别码被添加到每个信号中。 该代码通常是VPS识别信号。 控制和分析电路将输入频率与由电视接收机发送的信号的频率进行比较，以确定最高质量的信号。 为了加速处理，系统处理电视的本地位置坐标，使得所分析的频率仅在电视机的覆盖范围内预期的频率。