会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Receiver for analog and digital television signals
    • 接收机用于模拟和数字电视信号
    • US06369857B1
    • 2002-04-09
    • US09311252
    • 1999-05-13
    • Alvin Reuben BalabanMichael Louie LowEdward Coley Fox
    • Alvin Reuben BalabanMichael Louie LowEdward Coley Fox
    • H04N546
    • H04N5/4446H04N5/4401H04N5/455H04N5/46
    • A receiver requiring only a single IF SAW filter and IF amplifier receives signals in both analog format and in digital format, such as the NTSC, PAL and SECAM analog television signal formats and the ATSC and DVB digital television signal formats. IF signals from the IF amplifier are sub-sampled to digital signal form and are processed by respective analog format and digital format processors. Control circuitry responsive to the presence of certain unique components of the signals in analog format and digital format determine which of the analog format and digital format processors is producing valid data and selects the valid data to be utilized. In a television receiver, the unique components of the signals may include carrier signals, synchronization signals, pilot signals and symbol timing, and valid data is applied to a television display.
    • 仅需要单个IF SAW滤波器和IF放大器的接收器以模拟格式和数字格式接收信号,例如NTSC,PAL和SECAM模拟电视信号格式以及ATSC和DVB数字电视信号格式。 来自IF放大器的IF信号被子采样到数字信号形式,并由相应的模拟格式和数字格式处理器处理。 响应于模拟格式和数字格式的信号的某些独特组件的存在的控制电路确定模拟格式和数字格式处理器中的哪一个正在产生有效数据并选择要使用的有效数据。 在电视接收机中,信号的唯一分量可以包括载波信号,同步信号,导频信号和符号定时,有效数据被应用于电视显示器。