Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Patent
1993-11-24
1995-12-26
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
327402, 327568, 331 57, 331115, 331132, H03K 1728, H03B 700, H03B 502
Patent
active
054791294
ABSTRACT:
An electronically-controlled variable propagation delay digital signal inverter comprises a digital signal inverter having an input signal port and an output signal port, and an electronically-controlled negative resistance (ECNR). The ECNR is coupled to the output port of the inverter in a configuration so as to render the propagation delay of the digital signal inverter capable of being varied by varying the resistance of the ECNR. The electronically-controlled variable propagation delay digital signal inverter may be included in a ring oscillator configuration.
REFERENCES:
patent: 3234403 (1966-02-01), Candy
patent: 3931588 (1976-01-01), Gehweiler
patent: 4346343 (1982-08-01), Berndlmaier
patent: 4384300 (1983-05-01), Iizuka
patent: 4432032 (1984-02-01), Baker et al.
patent: 4571504 (1986-02-01), Iwamoto
patent: 4603264 (1986-07-01), Nakano
patent: 4849934 (1989-07-01), Yokoyama et al.
patent: 4988960 (1991-01-01), Tomisawa
patent: 5012141 (1991-04-01), Tomisawa
patent: 5012142 (1991-04-01), Sonntag
patent: 5039893 (1991-08-01), Tomisawa
patent: 5051625 (1991-09-01), Ikeda et al.
patent: 5054038 (1991-10-01), Hedberg
patent: 5072197 (1991-12-01), Anderson
patent: 5075569 (1991-12-01), Branson
patent: 5121014 (1992-06-01), Huang
patent: 5192886 (1993-03-01), Wetlaufer
patent: 5206609 (1993-04-01), Mijuskovic
patent: 5220216 (1993-06-01), Woo
patent: 5223316 (1993-08-01), Yamada et al.
patent: 5416446 (1995-05-01), Holler, Jr. et al.
Holler, P. T. 1-2, Filed Dec. 8, 1992, Ser. No. 07/987,917; "A Digital Programmable Frequency Generator."
Leonowich, R. H. 7, Filed Feb. 25, 1993, Ser. No. 08/023,243; "Wide-range Variable Delay Line and Ring Oscillator."
IEEE Journal of Solid-State Circuits, vol. 27, No. 12, Dec. 1992, "A 155-MHz Clock Recovery Delay-and Phase-Locked Loop," Lee, T. H. et al., pp. 1736-1745.
Enam, S. K., et al, IEEE Journal of Solid-State Circuits, vol. 25, No. 1, Feb. 1990, "A 300-MHz CMOS Voltage-Controlled Ring Oscillator," pp. 312-315.
Young, I. A., et al.; IEEE Journal of Solid State Circuits, vol. 27, No. 11, Nov. 1992; "A PLL Clock Generator with 5 to 110 MHz of Lock Range for Microprocessors," pp. 1599-1608.
Fernald, K. W., et al.; ISSCC 92, "An Implantable Digital Telemetry Integrated Circuit Using An Automatic Resonant-Frequency Search Technique," Feb. 19, 1992, Paper WP 4.4.
DeVito, L., et al.; ISSC91/Session 8/Hard-Disk and Data-Communication IC's/Paper TP 8.6, "A 52 MHz and 155 MHz Clock-Recovery PLL," 1991 IEEE International Solid-State Circuits Conference, pp. 142, 143, Mar. 1991.
Fernandez Francisco J.
Viswanathan Thayamkulangara R.
AT&T Corp.
Callahan Timothy P.
Englund Terry L.
Skaist Howard A.
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