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    • 4. 发明授权
    • Muting circuit for a television receiving set
    • 电视接收机的静音电路
    • US5408273A
    • 1995-04-18
    • US72703
    • 1993-06-07
    • Masahiko Okamura
    • Masahiko Okamura
    • H04N5/278H04N5/44H04N5/60H04N7/025H04N7/03H04N7/035H04N5/445
    • H04N21/4884H04N5/44513H04N5/60
    • A muting circuit for a television receiving set comprises a mute-judging part, a mute key input, an acoustic output circuit, a caption-judging part, and a caption key input. The mute-judging partenters a mute ON and a mute OFF state alternately every time it receives a mute key input signal. The acoustic output circuit reduces the sound output level to zero decibels at the mute ON state, and restores the sound output at the mute OFF state. The caption-judging part enters a caption ON state and caption OFF state alternately every time it receives a caption key input signal while it enters a caption ON state if the mute-judging part enters a mute ON state. Thus, in the mute ON stated the closed caption is displayed on the screen.
    • 用于电视接收机的静音电路包括静音判断部分,静音键输入,声输出电路,字幕判断部分和字幕键输入。 静音判断在每次收到静音键输入信号时都会交替静音ON和静音OFF状态。 声音输出电路在静音ON状态下将声音输出电平降低到零分贝,并在静音OFF状态下恢复声音输出。 如果静音判断部分进入静音ON状态,则字幕判断部分在每次接收到字幕键输入信号时进入字幕ON状态,交替地进入字幕ON状态和字幕OFF状态。 因此,在静音ON中,屏幕上显示隐藏字幕。
    • 5. 发明申请
    • BROADCAST RECEIVING DEVICE, BROADCAST RECEIVING METHOD AND DATA BROADCAST SCREEN PRESENTATION PROGRAM
    • 广播接收设备,广播接收方法和数据广播屏幕演示程序
    • US20090172764A1
    • 2009-07-02
    • US12095950
    • 2006-12-04
    • Masahiko Okamura
    • Masahiko Okamura
    • H04N7/173
    • H04H60/11H04H20/16H04H20/40H04H2201/30H04N21/4349H04N21/44209H04N21/6112
    • In a broadcast receiving device, a broadcast signal of a data broadcast program that is tuned in to by a tuner is demodulated into a transport stream by a demodulator, and a data broadcast content is acquired by an information acquisition unit from the demodulated transport stream. The acquired data broadcast content is stored in a storage device, and a data broadcast screen based on the stored data broadcast content is presented by an information presentation unit. When a reception state is a poor state, a presentation state of the data broadcast screen is held by the information presentation unit. When the reception state changes from the poor state to a good state and the data broadcast programs received in the good states before and after the poor state are the same, the presentation of the data broadcast screen based on the stored data broadcast content is restarted by the information presentation unit.
    • 在广播接收装置中,由调谐器调谐的数据广播节目的广播信号由解调器解调为传输流,并且由解调的传输流由信息获取单元获取数据广播内容。 获取的数据广播内容被存储在存储装置中,并且基于所存储的数据广播内容的数据广播屏幕由信息呈现单元呈现。 当接收状态不良状态时,信息呈现单元保持数据广播屏幕的呈现状态。 当接收状态从不良状态改变到良好状态,并且在差状态之前和之后以良好状态接收的数据广播节目相同时,基于所存储的数据广播内容的数据广播屏幕的呈现被重新启动 信息呈现单元。