发明授权
US06429708B2 Signal output device and method for sending signals at multiple transfer rates while minimizing crosstalk effects
有权
用于以多种传输速率发送信号的信号输出装置和方法，同时最小化串扰效应
- 专利标题： Signal output device and method for sending signals at multiple transfer rates while minimizing crosstalk effects
- 专利标题（中）： 用于以多种传输速率发送信号的信号输出装置和方法，同时最小化串扰效应
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申请号： US09774424申请日： 2001-01-31
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公开(公告)号： US06429708B2公开(公告)日： 2002-08-06
- 发明人: Hideo Asano , Hiroshi Oshikawa , Tatsuya Sakai , Masahiko Sato
- 申请人： Hideo Asano , Hiroshi Oshikawa , Tatsuya Sakai , Masahiko Sato
- 优先权： JP2000-029103 20000207
- 主分类号： H03K512
- IPC分类号： H03K512
摘要：
The signal output device of the present invention comprises of a driver circuit and a controller. The signal sending method of the present invention sets any one of a plurality of the different sending rates. The method also includes setting a slew rate of the driver circuit to a standard value that is in accordance with the predetermined data transfer rate, thereby starting signal transmission. The next step involves determining whether or not a data transfer error occurrence rate is below a predetermined allowable threshold. Then, changes in the slew rate of the driver circuit are made if the data transfer error occurrence rate is determined to be over the allowable threshold. Next, a search for a slew rate value that can decrease the data transfer error occurrence rate below the allowable threshold or decrease the data transfer error occurrence rate is performed. The new slew rate value is set as a new standard value. Finally, the process ends by setting the new standard slew rate for the driver circuit if the slew rate value can decrease the data transfer error occurrence rate below the allowable threshold or decrease the data transfer error occurrence rate.