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Remote Pulse Tuning System

IP.com Disclosure Number: IPCOM000085179D
Original Publication Date: 1976-Mar-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Edwards, DB: AUTHOR [+2]

Abstract

The circuit shown provides a means for independently controlling the rising edge and the trailing edge of a pulse which is provided to a remote node H. The leading edge of the pulse at the remote node H is synchronized with a reference pulse R. The pulse width will not be degenerated due to the interim circuitry or due to the transmission line.

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Remote Pulse Tuning System

The circuit shown provides a means for independently controlling the rising edge and the trailing edge of a pulse which is provided to a remote node H. The leading edge of the pulse at the remote node H is synchronized with a reference pulse R. The pulse width will not be degenerated due to the interim circuitry or due to the transmission line.

Electronically adjustable delay lines A and B are used to delay the reference pulse. The output from the electronic delays A and B are combined by AND circuit 10 to produce the signals shown in Fig. 2. Delay A controls the rising edge of the output pulse and delay B controls the falling edge of the output pulse.

The amount of delay introduced by delay line B is controlled through comparator 12, control circuit 13, and control register 14. Comparator 12 compares reference E and the feedback signal F. This circuit could be the circuit shown in the IBM Technical Disclosure Bulletin, Vol. 18, No. 3, August 1975, pages 677 and 678. Circuits 12, 13, 14 and delay line B synchronize the falling edge of the return pulse F to the reference pulse E.

Comparator 20, control logic 21, and control register 22 control the amount of delay introduced by delay line A. Comparator 20 senses the pulse width or the relationship between the falling edge and the rising edge of the pulse. Delay line C and AND circuit 30 produce a reference signal G which indicates the desired pulse width. When the inputs to comparator 20...