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    • 75. 发明授权
    • Digital and analog interface for set back box
    • 数字和模拟接口用于后箱
    • US5553140A
    • 1996-09-03
    • US250564
    • 1994-05-26
    • Yukio KubotaHajime InoueChuen-Chien Lee
    • Yukio KubotaHajime InoueChuen-Chien Lee
    • H04N7/08H04H20/00H04H40/00H04N5/46H04N5/775H04N7/081H04N7/16H04N7/167H04N9/64
    • H04H40/00H04N21/4405H04N21/4623H04N5/44H04N5/775H04N7/162H04N7/167H04N7/1675H04N9/641H04H60/23H04N5/4401H04N5/46
    • A method and apparatus for interfacing digital and analog consumer electronic devices with digital and analog broadcast signals. The broadcast signals are received by electronic devices which tune the signals and provide them to set back boxes. The set back boxes process the signals and provide a plurality of signals to a plurality of electronic devices. Analog devices are provided with composite video signals, luminance video signals, chrominance video signals, and at least one audio signal while digital devices are provided with a digital video and audio signal. The processing performed by the set back boxes includes signal descrambling and decryption for analog and digital signals, error correction for digital signals, and intermediate frequency signal processing for analog signals. In addition, to interface digital signals, including high definition television (HDTV) signals, with analog electronic devices, the set back box decompresses the digital signal and converts it to an analog signal. A command line provides for communication between the set back box and the plurality of electronic devices.
    • 一种用于将数字和模拟消费电子设备与数字和模拟广播信号进行接口的方法和装置。 广播信号由调谐信号的电子设备接收并提供给设置箱。 集合箱处理信号并向多个电子设备提供多个信号。 在数字设备提供数字视频和音频信号的同时,模拟设备具有复合视频信号,亮度视频信号,色度视频信号和至少一个音频信号。 由后置盒执行的处理包括用于模拟和数字信号的信号解扰和解密,数字信号的纠错和用于模拟信号的中频信号处理。 另外,为了将数字信号(包括高分辨率电视(HDTV)信号)与模拟电子设备进行接口,设置后盒将数字信号解压缩并将其转换为模拟信号。 命令行提供了设置箱和多个电子设备之间的通信。
    • 79. 发明授权
    • Apparatus for recording video and audio signals
    • 用于记录视频和音频信号的装置
    • US4763206A
    • 1988-08-09
    • US849903
    • 1986-04-09
    • Takao TakahashiHajime Inoue
    • Takao TakahashiHajime Inoue
    • H04N5/92H04N5/7826H04N9/835H04N5/91
    • H04N9/8355H04N5/78263
    • In an apparatus for recording video and audio signals, and in which a video signal has its time base compressed to 1/N the time base of a standard television signal and the time base compressed video signal is recorded in slant tracks on a tape by rotary heads while the tape is driven so as to provide a recording format coincident with that of a standard video tape recorder, and with video information of one field being recorded in each track; there are further provided a time base compressor for compressing the time base of an input audio signal in correspondence to the time base compressed video signal, a frequency modulator for frequency modulating a carrier signal with the time base compressed audio signal, and a mixer for mixing the time base compressed and frequency modulated audio signal with the time base compressed video signal prior to recording with the latter by the rotary heads in the standard recording format.
    • 在用于记录视频和音频信号的装置中,视频信号的时基压缩为1 / N,标准电视信号的时基和时基压缩视频信号通过旋转记录在磁带上的倾斜磁道中 磁带被驱动以提供与标准录像机的记录格式一致的记录格式,并且一个场的视频信息被记录在每个轨道中; 还提供了一种用于对应于时基压缩视频信号压缩输入音频信号的时基的时基压缩器,用于使用时基压缩音频信号对载波信号进行频率调制的频率调制器和用于混合的混频器 时基压缩和频率调制音频信号与时基压缩视频信号在记录之前由旋转磁头以标准记录格式进行记录。
    • 80. 发明授权
    • PCM-signal recording and/or reproducing apparatus
    • PCM信号记录和/或再现装置
    • US4734797A
    • 1988-03-29
    • US799925
    • 1985-11-21
    • Takao TakahashiHajime Inoue
    • Takao TakahashiHajime Inoue
    • G11B20/10G11B20/22G11B15/12G11B5/00
    • G11B20/22G11B20/10527
    • Pulse code modulated signal apparatus has a recording mode and a reproducing mode and comprises input terminals for respectively receiving input signals, a digital-to-analog converter for receiving a reproduced digital input signal in the reproducing mode and producing an analog output signal corresponding thereto, and switch circuitry for making a selection of the input signals, the analog output signal and a non-signal and producing a switched output corresponding thereto. A filter filters the switched output. A control circuit controls the switch circuit in the recording mode to select one of the input signals and in the reproducing mode to select alternately the analog output signal and the non-signal, thereby providing aperture compensation.
    • 脉冲编码调制信号装置具有记录模式和再现模式,并且包括用于分别接收输入信号的输入端子,用于在再现模式中接收再现的数字输入信号并产生与其对应的模拟输出信号的数 - 模转换器, 以及用于对输入信号进行选择的开关电路,模拟输出信号和非信号,并产生与其对应的开关输出。 一个滤波器对开关输出进行滤波。 控制电路在记录模式下控制开关电路以选择一个输入信号,并且在再现模式中交替选择模拟输出信号和非信号,由此提供孔径补偿。