Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1975-03-06
1977-08-09
Sloyan, Thomas J.
Communications: electrical
Audible indication
Percussion-type sound producer
340347AD, 340347M, 324 99D, H03K 1302
Patent
active
040414841
ABSTRACT:
An analog-to-digital converter employing a sample-hold, ramp generator and comparator in the conversion process combines the sample-hold and integrate functions in one operational amplifier. Provision may be made to derive the reference voltage, for the ramp generator, from the analog signal whereby automatic gain control is also obtained.
REFERENCES:
patent: 2941196 (1960-06-01), Raynsford et al.
patent: 3368149 (1968-02-01), Wasserman
patent: 3390354 (1968-06-01), Munch
patent: 3480948 (1969-11-01), Lord
patent: 3487304 (1969-12-01), Kennedy
patent: 3541446 (1970-11-01), Prozeller
patent: 3668691 (1972-06-01), Sergo
patent: 3815032 (1974-06-01), Parker et al.
Analog Devices, Inc., "Analog-Digital Conversion Handbook," June 1972, pp. I-33, I-34, I-42, I-43, I-44, I-45, III-80 to III-85.
Boleda Alberto
Tracey Robert J.
Cannon Russell A.
Cool Leonard R.
GTE Automatic Electric Laboratories Incorporated
Sloyan Thomas J.
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