发明授权
- 专利标题: Remotely controlled cable equalization for in-flight entertainment systems
- 专利标题(中): 用于飞行娱乐系统的遥控电缆均衡
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申请号: US579183申请日: 1995-12-27
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公开(公告)号: US6057875A公开(公告)日: 2000-05-02
- 发明人: Bruce Robert Ferguson , James Bruce Whitehouse
- 申请人: Bruce Robert Ferguson , James Bruce Whitehouse
- 申请人地址: JPX Tokyo CA Irvine
- 专利权人: Sony Corporation,Sony Trans Com Inc.
- 当前专利权人: Sony Corporation,Sony Trans Com Inc.
- 当前专利权人地址: JPX Tokyo CA Irvine
- 主分类号: H04N5/14
- IPC分类号: H04N5/14 ; H03H11/28 ; H04B3/04 ; H03H7/40
摘要:
A remotely-controlled cable equalization system includes a control unit containing a non-volatile memory, a plurality of remote video display devices, each of which includes an adjustable cable equalization circuit, and an interface for connecting the control unit to each of the plurality of remote video display devices. Each of the plurality of remote video display devices includes a receiver for receiving a 12-bit digital code, from the control unit, through the interface. A 12-bit register is connected to the receiver and a 12-bit digital-to-analog converter is then connected to the 12-bit register, for receiving a 12-bit digital code from the 12-bit register and for converting the digital signal to an analog signal. The adjustable cable equalization circuit in each of the plurality of remote video display devices receives the analog signal from the 12-bit digital-to-analog converter and provides the necessary cable equalization for each of the plurality of remote video display devices based on the received analog signal.
公开/授权文献
- US5010362A Image projecting system 公开/授权日:1991-04-23
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