发明授权
- 专利标题: Apparatus for receiving both analog and digital TV signals
- 专利标题(中): 用于接收模拟和数字电视信号的装置
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申请号: US12397025申请日: 2009-03-03
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公开(公告)号: US08218092B1公开(公告)日: 2012-07-10
- 发明人: Yossef Cohen , Itamar Gold-Gavriely , Avraham Epstein
- 申请人: Yossef Cohen , Itamar Gold-Gavriely , Avraham Epstein
- 申请人地址: US CA Sunnyvale
- 专利权人: CSR Technology Inc.
- 当前专利权人: CSR Technology Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Lando & Anastasi, LLP
- 主分类号: H04N5/455
- IPC分类号: H04N5/455 ; H04N5/60
摘要:
A television receiver includes a tuner, a bandpass filter, an intermediate frequency amplifier and a demodulator. The tuner has an input to receive radio frequency signals and an output to provide modulated analog and digital television signals at an intermediate frequency. The bandpass filter and the intermediate frequency amplifier provide a singular signal path to filter and amplify both the modulated analog and digital television signals at the intermediate frequency. The demodulator has a singular input coupled to the output of the intermediate frequency amplifier and a plurality of outputs. The plurality of outputs includes a first output to provide demodulated analog television signals in response to the output of the tuner providing modulated analog television signals at the intermediate frequency and a second output to provide demodulated digital television signals in response to the output of the tuner providing modulated digital television signals at the intermediate frequency.
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