Dual purpose HDTV/NTSC receiver
    1.
    发明授权
    Dual purpose HDTV/NTSC receiver 失效
    双用途HDTV / NTSC接收机

    公开(公告)号:US5173774A

    公开(公告)日:1992-12-22

    申请号:US629523

    申请日:1990-12-18

    IPC分类号: H04N5/44 H04N5/46

    CPC分类号: H04N5/46 H04N7/012

    摘要: A dual purpose receiver can receive and process either 525-line NTSC signals or 787.5-line HDTV signals without the use of costly interlace-to-progressive scan conversion circuitry. The 525-line signal can either be stored a line at a time and repeated twice to create a 1575-line format, or it can also interpolate values based on the two adjacent received lines to create a form of averaging in the 1575-line format. The invention is not restricted to use with NTSC/HDTV systems.

    摘要翻译: 双用途接收机可以接收和处理525行NTSC信号或787.5行HDTV信号,而无需使用昂贵的交错逐行扫描转换电路。 525行信号可以一次存储一行,重复两次以创建1575行格式,或者也可以根据两个相邻的接收行内插值,以创建1575行格式的平均形式 。 本发明不限于与NTSC / HDTV系统一起使用。

    Television/telephone system with annunciator and intercom feature
    2.
    发明授权
    Television/telephone system with annunciator and intercom feature 失效
    具有报警和对讲功能的电视/电话系统

    公开(公告)号:US4427847A

    公开(公告)日:1984-01-24

    申请号:US291655

    申请日:1981-08-10

    IPC分类号: H04M11/00 H04M11/08

    CPC分类号: H04M11/00

    摘要: A television receiver comprises a television system energized by the powerlines of a commercial power grid, a telephone network access system including a microphone disposed in close proximity with the audio speaker of the television system and a remote control system enabling the receiver to be operated in a television mode or a telephone mode. The television receiver according to the invention is characterized by having an annunciator/intercom enabled for operation by the remote control system. In the annunciator mode, the audio section of the television system is disabled and the microphone is connected through a radio-frequency signal transmitter to the power lines for generating a radio-frequency signal for local transmission. A frequency-modulator is included for modulating the radio frequency signal. At least one remotely located radio-frequency receiver coupled to the power lines is provided for receiving and demodulating the radio-frequency signal and rendering audible television receiver user voice signals. The television receiver user can therefore announce a telephone caller when the television receiver is operated in the annunciator mode. Alternately, intercom units may be employed to provide a two-way intercom conversation link between the television receiver user and a remotely located called party.

    摘要翻译: 电视接收机包括由商业电力网的电力线供电的电视系统,包括靠近电视系统的音频扬声器设置的麦克风的电话网络接入系统以及使得接收机能够以 电视模式或电话模式。 根据本发明的电视接收机的特征在于具有能够由遥控系统操作的信号器/内部通信。 在报警器模式中,电视系统的音频部分被禁用,并且麦克风通过射频信号发射器连接到电力线,以产生用于本地传输的射频信号。 包含频率调制器用于调制射频信号。 提供耦合到电力线的至少一个远程定位的射频接收器,用于接收和解调该射频信号并使可听见的电视接收器的用户语音信号。 因此,当电视接收机在报警器模式下操作时,电视接收机用户可以通知电话呼叫者。 或者,可以使用对讲单元来在电视接收机用户和远程定位的被叫方之间提供双向对讲会话链路。

    Focus tracking registration for optical reproducing systems
    3.
    发明授权
    Focus tracking registration for optical reproducing systems 失效
    用于光学再现系统的重点跟踪注册

    公开(公告)号:US3932700A

    公开(公告)日:1976-01-13

    申请号:US439657

    申请日:1974-02-04

    申请人: Paul A. Snopko

    发明人: Paul A. Snopko

    摘要: A video disc reproducing system wobbles the reading beam across the storage track of the disc and the outputs of two photocells are added to develop both the information signal and a radial beam tracking signal employed to maintain tracking registration of the beam and the storage track. The outputs of these cells are also combined differentially to develop a focus tracking signal used to adjust the focal plane of the reading beam to maintain focus registration.A search feature adjusts the focus conditions over a range but is disabled and is superseded by the focus tracking control arrangement once focus conditions are brought within the operating range of the focus tracking arrangement.

    Adaptive comb filter and interpolator
    4.
    发明授权
    Adaptive comb filter and interpolator 失效
    自适应梳状滤波器和内插器

    公开(公告)号:US4646133A

    公开(公告)日:1987-02-24

    申请号:US683437

    申请日:1984-12-18

    IPC分类号: H04N5/44 H04N9/64 H04N9/78

    CPC分类号: H04N9/646 H04N7/012 H04N9/78

    摘要: An adaptive comb filter and interpolator is combined with scan conversion circuitry thereby to reduce requirements for memory storage. Scan rate conversion processing of received television signals is coupled with adaptive comb filtering and interpolating to allow for all of the separate processes to be accomplished utilizing combined circuitry and a single memory using less memory storage space than the sum of the memory that the separate functions would normally require when performed at separate or discrete portions of a television receiver circuitry. A predetermined number of lines are stored in a memory and written out to combing and interpolating arithmetic logic circuitry under the control of a separate control circuit. The control circuit addresses the memory to provide for separately reading in the received digitalized video information and writing out the scan converted information to the logic circuitry for combing and interpolating. The scan rate converted, combed and interpolated chroma and luma signals are provided to the video display circuitry. The control circuit is governed by the synchronizing information of the received signal in addition to a pixel timing clock and mode control information. Two to one scan conversion for progressive scan line display is provided.

    摘要翻译: 自适应梳状滤波器和内插器与扫描转换电路组合,从而减少对存储器存储的要求。 接收的电视信号的扫描速率转换处理与自适应梳状滤波和内插相结合,以允许利用组合电路和单个存储器使用比存储器总和少的存储空间来实现所有单独的处理, 通常要求在电视接收机电路的单独或分立部分执行时。 将预定数量的行存储在存储器中,并在单独的控制电路的控制下写出来组合和内插算术逻辑电路。 控制电路对存储器进行寻址以提供单独读取所接收的数字化视频信息,并将扫描转换的信息写入用于梳理和内插的逻辑电路。 将扫描速率转换,精梳和内插色度和亮度信号提供给视频显示电路。 除了像素定时时钟和模式控制信息之外,控制电路还受到接收信号的同步信息的控制。 提供逐行扫描线显示的两到一个扫描转换。

    Secure video decoder system
    5.
    发明授权
    Secure video decoder system 失效
    安全视频解码系统

    公开(公告)号:US5018197A

    公开(公告)日:1991-05-21

    申请号:US559468

    申请日:1990-07-30

    IPC分类号: H04N7/167

    CPC分类号: H04N7/1675

    摘要: A video decoder includes an application specific integrated circuit (ASIC) that has the decoder address and a secure decryption key stored in a one-time-programmable memory. Encrypted messages are received and selectively supplied to a packet decrypter and to a video decrypter based upon the location of bits in the message string. The packet decrypter is responsive to a flag in the packet data for utilizing a secure key or a unsecure key for decryption of the packet data. The information derived from the secure decryption and the secure key itself are never available (or ascertainable) outside of the ASIC. Only information concerning the unsecure key is available outside of the integrated circuit.

    摘要翻译: 视频解码器包括具有解码器地址的专用集成电路(ASIC)和存储在一次可编程存储器中的安全解密密钥。 基于消息串中的位的位置,加密的消息被接收并选择性地提供给分组解密器和视频解密器。 分组解密器响应分组数据中的标志,以利用用于解密分组数据的安全密钥或不安全密钥。 从安全解密和安全密钥本身导出的信息在ASIC外部从不可用(或可确定)。 只有关于不安全密钥的信息才能在集成电路之外获得。

    Microcomputer-controlled television/telephone system and method therefore
    6.
    发明授权
    Microcomputer-controlled television/telephone system and method therefore 失效
    因此,微电脑控制的电视/电话系统和方法

    公开(公告)号:US4356509A

    公开(公告)日:1982-10-26

    申请号:US243010

    申请日:1981-03-12

    IPC分类号: H04M1/272 H04M1/56 H04N5/00

    CPC分类号: H04M1/56 H04M1/2725

    摘要: A television receiver incorporating telephone interface circuitry permitting the viewer to not only answer incoming calls but also place outgoing calls by means of the television receiver is disclosed. An infrared link is used for remote control telephone answering and dial-out with a tuner-integrated microcomputer used to drive a character generator permitting the number dialed to be displayed on the television receiver's video display and to be provided to a standard telephone line. An automatic re-dial feature is provided by means of the microcomputer's memory whereby the last phone number dialed by the remote transmitter may be stored in memory, recalled by means of a single button selection, presented on the on-screen display and automatically dialed. The microcomputer-driven character generator also controls telephone interface circuitry and switching between television and telephone modes while providing for a privacy mode in which a television-mounted microphone is turned off in selectively muting audio output to the other telephone subscriber.

    摘要翻译: 公开了一种电视接收机,其包括电话接口电路,允许观众不仅应答来电,而且还通过电视接收机发出呼出。 红外线连接用于遥控电话应答和拨出,用于用于驱动字符发生器的调谐器集成微计算机,允许拨打的号码显示在电视接收机的视频显示器上并提供给标准电话线。 通过微型计算机的存储器提供自动重拨功能,由此远程发送器拨打的最后一个电话号码可以存储在存储器中,通过在屏幕显示上呈现并自动拨号的单个按钮选择来调用。 微型计算机驱动的字符发生器还控制电话接口电路和电视和电话模式之间的切换,同时提供隐私模式,其中电视安装的麦克风被关闭以选择性地将音频输出静音到另一个电话用户。

    MPEG on screen display coder for DTV interfaces
    7.
    发明授权
    MPEG on screen display coder for DTV interfaces 有权
    用于DTV接口的MPEG屏幕显示编码器

    公开(公告)号:US07327790B1

    公开(公告)日:2008-02-05

    申请号:US09330769

    申请日:1999-06-11

    IPC分类号: H04N7/18

    摘要: An MPEG on-screen display coder includes a buffer, an MPEG encoder, and a multiplexer. The buffer receives and buffers an MPEG transport data stream containing frames of a selected program and frames of a non-selected program. The MPEG encoder encodes frames of the selected program with an on-screen display. The multiplexer selectively passes to a digital television receiver the frames of the non-selected program, the encoded frames of the selected program, and original frames of the selected program.

    摘要翻译: MPEG屏幕显示编码器包括缓冲器,MPEG编码器和多路复用器。 缓冲器接收并缓冲包含所选节目的帧和未选择节目的帧的MPEG传输数据流。 MPEG编码器通过屏幕显示对所选程序的帧进行编码。 复用器选择性地向数字电视接收机传递未选择节目的帧,所选节目的编码帧以及所选节目的原始帧。

    Television receiver with two-way telephone conversation and dial-out
capabilities
    9.
    发明授权
    Television receiver with two-way telephone conversation and dial-out capabilities 失效
    具有双向电话通话和拨出功能的电视接收机

    公开(公告)号:US4349701A

    公开(公告)日:1982-09-14

    申请号:US175456

    申请日:1980-08-05

    申请人: Paul A. Snopko

    发明人: Paul A. Snopko

    IPC分类号: H04M1/26 H04M11/00 H04M11/08

    CPC分类号: H04M11/085 H04M1/26 H04M11/00

    摘要: A televison receiver is disclosed comprising a cabinet which houses a television system having telephone network access means. The television receiver provides both for presentation of television programs and for dialing out and conversing through the talk channel and listen channel of an associated telephone network while viewing a television picture. The receiver has at least one function control means including operational mode selection means for providing a television program mode, and alternately, a two-way telephone; conversation with-television-picture mode, and with numerical keypad for dial out. The television receiver user can initiate a telephone call by dialing through the television receiver telephone network access means. Upon termination of the conversation, the televison receiver user can restore the television program mode.

    摘要翻译: 公开了一种电视接收机,其包括容纳具有电话网络接入装置的电视系统的机柜。 电视接收机既提供电视节目,又可以在观看电视画面的同时,通过通话频道拨出和通话并收听相关电话网络的频道。 接收机具有至少一个功能控制装置,包括用于提供电视节目模式的操作模式选择装置,或者交替地包括双向电话; 与电视图像模式对话,并带有数字键盘拨出。 电视接收机用户可以通过拨打电视接收机电话网络接入装置来发起电话呼叫。 在会话终止时,电视接收者用户可以恢复电视节目模式。

    Television receiver with two-way telephone conversation capability
    10.
    发明授权
    Television receiver with two-way telephone conversation capability 失效
    具有双向电话通话能力的电视接收机

    公开(公告)号:US4338492A

    公开(公告)日:1982-07-06

    申请号:US109424

    申请日:1980-01-02

    申请人: Paul A. Snopko

    发明人: Paul A. Snopko

    CPC分类号: H04M11/00 H04M1/26 H04M11/085

    摘要: A television receiver is disclosed comprising a cabinet which houses a television system having telephone network access means. The television receiver provides both for presentation of television programs and for conversing through the talk channel and listen channel of an associated telephone network while viewing a television picture. The receiver has at least one function control means including operational mode selection means for providing a television program mode, and alternately, a two-way telephone conversation with-television-picture mode. When the presence of a ringer signal from the telephone network is indicated, the television receiver user can activate the two-way telephone conversation mode and conduct a two-way conversation with the telephone caller through the television receiver while viewing a television picture. Upon termination of the conversation, the television receiver user can restore the television program mode.

    摘要翻译: 公开了一种电视接收机,其包括容纳具有电话网络接入装置的电视系统的机柜。 电视接收机提供电视节目的呈现以及用于在观看电视画面的同时通过通话频道和相关联的电话网络的通道进行通话。 接收机具有至少一个功能控制装置,其包括用于提供电视节目模式的操作模式选择装置,或者替代地,具有电视图像模式的双向电话对话。 当指示来自电话网络的振铃信号的存在时,电视接收机用户可以激活双向电话通话模式,并且在观看电视图像的同时通过电视接收机与电话呼叫者进行双向通话。 在会话结束时,电视接收机用户可以恢复电视节目模式。