Boots – shoes – and leggings
Patent
1993-10-12
1995-08-29
Cosimano, Edward R.
Boots, shoes, and leggings
324121R, 364577, G01R 1300
Patent
active
054466504
ABSTRACT:
Methods for producing logic signal displays for an instrument known as a "logic oscilloscope" are disclosed. A digital input signal is first sampled as an analog signal to produce multi-bit digital samples that are representative of the amplitude of the input signal over time. The multi-bit digital samples are then processed using interpolative techniques to ascertain when the input signal crossed a hypothetical logic level threshold or pair of thresholds and when the signal was in one logic state or the other. The resulting transition times and logic states are then used as the basis for generating a variety of digital displays, including logic timing diagrams, state table displays, and cursor readouts similar to those available in a logic analyzer. Setup and hold time violations and measurements may also be obtained using this information. In a pseudo-synchronous mode of operation, one logic signal is treated as a virtual clock signal, so that the states of other (data) signals are determined at times controlled by the active transitions of this clock signal. A cursor provides a digital readout of the logic value of one or more signals, whether they are displayed in analog form or logic timing diagram form or not shown on the screen at all.
REFERENCES:
patent: 4039784 (1977-08-01), Quarton et al.
patent: 4251814 (1981-02-01), Dagostino
patent: 4271488 (1981-06-01), Saxe
patent: 4353032 (1982-10-01), Taylor
patent: 4425643 (1984-01-01), Chapman et al.
patent: 4481647 (1984-11-01), Gombert et al.
patent: 4495586 (1985-01-01), Andrews
patent: 4558422 (1985-12-01), DenBeste et al.
patent: 4578666 (1986-03-01), Anderson
patent: 4585975 (1986-04-01), Wimmer
patent: 4646297 (1987-02-01), Palmquist et al.
patent: 4647862 (1987-03-01), Blair
patent: 4647922 (1987-03-01), Saxe
patent: 4704691 (1987-11-01), Blair
patent: 4713771 (1987-12-01), Crop
patent: 4731768 (1988-03-01), Easterday
patent: 4763117 (1988-08-01), Blattner et al.
patent: 4774498 (1988-09-01), Traa
patent: 4777616 (1988-10-01), Moore et al.
patent: 4779028 (1988-10-01), Blair
patent: 4809189 (1989-02-01), Batson
patent: 4812769 (1989-03-01), Agoston
patent: 4908621 (1990-03-01), Polonio et al.
patent: 4949361 (1990-08-01), Jackson
patent: 4968902 (1990-11-01), Jackson
patent: 4979177 (1990-12-01), Jackson
patent: 4985702 (1991-01-01), Penney
patent: 5043927 (1991-08-01), Jackson
patent: 5097147 (1992-03-01), Stuebing et al.
patent: 5144525 (1992-09-01), Saxe et al.
patent: 5162723 (1992-11-01), Marzalek et al.
"Logic Analyzer Goes Analog", Stan Runyon, EE Times, Dec. 9, 1991.
"Logic/Oscilloscope Speeds Debugging Time", John Novellino Electronic Design, Apr. 26, 1990, pp. 57-60.
"Combined Instruments Find Logic Problems", Dough Conner, EDN, Aug. 5, 1991, pp. 77, 79, 80, 82, 84.
"Timing Logica Analyzer Boasts 1-NS Resolution", John Novellino, Electronic Design, Jul. 25, 1991, p. 171.
"Advanced ADCs in Digital Oscilloscopes Will Enhance Design Awareness", Tom Saponas, Electronic Design, Jan. 11, 1990, p. 169.
"A 4 GHz 8b Data Acquistion System,", Ken Rush/Pat Byrne, 1991 IEEE International Solid-State Circuits Conference, Feb. 14, 1991, pp. 176, 177, 312.
"Specifications and Characteristics", HP 16532A Logic Analyzer, Hewlett-Packard Manual, Feb., 1991.
"Logic Analyzers Assume New Roles in Debugging 32-Bit CISC Systems", Dan Strassberg, EDN, Dec. 20, 1990, pp. 134-140.
"Combined Scope/Logic Analyzers Detect Hard-to-Find Analog Problems", Mike Donlin, Computer Design, Feb. 1, 1991, p. 54.
Austin Richard
Overhage Craig
Cosimano Edward R.
Griffith Boulden G.
Tektronix Inc.
LandOfFree
Logic signal extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Logic signal extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logic signal extraction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1824453