Invention Grant
US5579144A Data access arrangement having improved transmit-receive separation
失效
具有改进的发射 - 接收间隔的数据存取装置
- Patent Title: Data access arrangement having improved transmit-receive separation
- Patent Title (中): 具有改进的发射 - 接收间隔的数据存取装置
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Application No.: US497580Application Date: 1995-06-30
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Publication No.: US5579144APublication Date: 1996-11-26
- Inventor: David Whitney
- Applicant: David Whitney
- Applicant Address: CA Cupertino
- Assignee: Siemens Components, Inc.
- Current Assignee: Siemens Components, Inc.
- Current Assignee Address: CA Cupertino
- Main IPC: H04B3/03
- IPC: H04B3/03 ; H04B1/58 ; H04M1/738 ; H04M11/00 ; H04M11/06 ; H04B10/00
Abstract:
A data access arrangement (DAA) having a transhybrid circuit for separating a transmit signal from a received signal by providing a transmit cancellation signal to the inverting input of a servo-feedback differential amplifier on the receive channel of the DAA. The cancellation signal is provided by a photodiode optically coupleable with a light emitting diode within a optical isolator on the transmission channel of the DAA. The gain of the cancellation signal can be independently controlled.
Public/Granted literature
- US4528067A Device for web removal from a cylinder Public/Granted day:1985-07-09
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