发明授权
- 专利标题: Broadband signal switching equipment
- 专利标题(中): 宽带信号切换设备
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申请号: US678034申请日: 1991-04-01
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公开(公告)号: US5073775A公开(公告)日: 1991-12-17
- 发明人: Ruediger Hofmann
- 申请人: Ruediger Hofmann
- 申请人地址: DEX Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DEX Munich
- 优先权: EPX90107016 19900412
- 主分类号: H04M3/00
- IPC分类号: H04M3/00 ; H04Q3/52
摘要:
A crosspoint matrix has matrix input lines which lead via pairs of switching elements to matrix output lines having, respectively, two signal conductors which are respectively connectible to a reference potential source via a precharging transistor controlled by a precharging clock and which have signal inputs of differential amplifier with a trigger behavior connectible thereto. The pair of switching elements respectively comprise two input transistors that have their control electrodes connected to a signal conductor of the appertaining matrix input line and form a series circuit with a respective switching transistor leading to the one or, respectively, other output signal conductor, a logic element that is respectively oppositely controlled by the precharging clock is inserted into the input lines and, in the switching elements, the ends of the series circuits facing away from the matrix output line are directly connected to the appertaining terminal of the operating voltage source.
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