Controlled oscillator

Details Controlled oscillator Controlled oscillator

1993-04-07

1995-08-29

Dolinar, Andrew M.

Oscillators

Ring oscillators

327276, 327281, H03B 524

Patent

active

054464170

ABSTRACT:
A controlled oscillator comprising a delay chain having a plurality of series coupled delay lines, the output of the delay chain being fed back as an input to each of the delay lines. Each delay line comprising an invertor such that the delay imparted by the invertor is controlled by a voltage controlled resistance means. The length of the delay chain is controlled by a selection control means which in turn controls the frequency range of operation of the oscillator.

REFERENCES:
patent: 4072910 (1978-02-01), Dingwall et al.
patent: 4105950 (1978-08-01), Dingwall
patent: 4388536 (1983-06-01), Peil et al.
patent: 4408168 (1983-10-01), Higuchi
patent: 4686489 (1987-08-01), Caspell
patent: 4820943 (1989-04-01), Makino et al.
patent: 4978927 (1990-12-01), Hausman et al.
patent: 5045811 (1991-09-01), Lewis
patent: 5081428 (1992-01-01), Atriss et al.
Patent Abstracts of Japan, vol. 10, No. 117, (E-400) (2174) 2 May 1986, & JP-A-60 250 712 (Toshiba K.K.) 11 Dec. 1985.
Patent Abstracts of Japan, vol. 10, No. 213 (E-422) (2269) 25 Jul. 1986, & JP-A-61 52 022 (Hitachi Ltd.) 14 Mar. 1986.

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