GB1081753A – Improvements in or relating to electronic circuitry for producing and remembering an output voltage that represents the level of a signal on the input
– Google Patents
GB1081753A – Improvements in or relating to electronic circuitry for producing and remembering an output voltage that represents the level of a signal on the input
– Google Patents
Improvements in or relating to electronic circuitry for producing and remembering an output voltage that represents the level of a signal on the input
Info
Publication number
GB1081753A
GB1081753A
GB32715/64A
GB3271564A
GB1081753A
GB 1081753 A
GB1081753 A
GB 1081753A
GB 32715/64 A
GB32715/64 A
GB 32715/64A
GB 3271564 A
GB3271564 A
GB 3271564A
GB 1081753 A
GB1081753 A
GB 1081753A
Authority
GB
United Kingdom
Prior art keywords
voltage
counter
difference signal
remembering
relating
Prior art date
1963-08-16
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB32715/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1963-08-16
Filing date
1964-08-11
Publication date
1967-08-31
1964-08-11
Application filed by Honeywell Inc
filed
Critical
Honeywell Inc
1967-08-31
Publication of GB1081753A
publication
Critical
patent/GB1081753A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03G—CONTROL OF AMPLIFICATION
H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
H03G3/20—Automatic control
H03G3/30—Automatic control in amplifiers having semiconductor devices
H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04D—NON-POSITIVE-DISPLACEMENT PUMPS
F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
G—PHYSICS
G11—INFORMATION STORAGE
G11C—STATIC STORES
G11C27/00—Electric analogue stores, e.g. for storing instantaneous values
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03G—CONTROL OF AMPLIFICATION
H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
H03G3/001—Digital control of analog signals
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K21/00—Details of pulse counters or frequency dividers
H03K21/08—Output circuits
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
H03M1/00—Analogue/digital conversion; Digital/analogue conversion
H03M1/12—Analogue/digital converters
H03M1/48—Servo-type converters
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
H03M1/00—Analogue/digital conversion; Digital/analogue conversion
H03M1/66—Digital/analogue converters
H03M1/74—Simultaneous conversion
H03M1/80—Simultaneous conversion using weighted impedances
H03M1/808—Simultaneous conversion using weighted impedances using resistors
Abstract
1,081,753. Selective signalling. HONEYWELL Inc. Aug. 11, 1964 [Aug. 16, 1963], No. 32715/64. Heading G4H. In a voltage digitizing circuit, Fig. 1, an unknown A.C. voltage 20 is compared with a known voltage 143 and the difference signal controls the application of pulses 32 to a counter 33 which in turn controls the known voltage. The frequency of the pulses 32 which are counted corresponds to the magnitude of the difference signal, and the direction of counting upon the phase of the difference signal, this causing one of two leads 30, 31 to be marked. The reference voltage is produced by binarily weighted resistors 125, 126 &c., and the counter is arranged to have a «centre-zero » by subtracting from the reference voltage a voltage 144, 140, corresponding to half its maximum capacity. Suitable transistor bistable units are described (Fig. 3, not shown), for the counter, and a phase-discriminating and pulse-generating circuit (Fig. 3, not shown), is described.
GB32715/64A
1963-08-16
1964-08-11
Improvements in or relating to electronic circuitry for producing and remembering an output voltage that represents the level of a signal on the input
Expired
GB1081753A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US302573A
US3247507A
(en)
1963-08-16
1963-08-16
Control apparatus
Publications (1)
Publication Number
Publication Date
GB1081753A
true
GB1081753A
(en)
1967-08-31
Family
ID=23168327
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB32715/64A
Expired
GB1081753A
(en)
1963-08-16
1964-08-11
Improvements in or relating to electronic circuitry for producing and remembering an output voltage that represents the level of a signal on the input
Country Status (5)
Country
Link
US
(1)
US3247507A
(en)
DE
(1)
DE1437157A1
(en)
FR
(1)
FR1413945A
(en)
GB
(1)
GB1081753A
(en)
SE
(1)
SE332011B
(en)
Families Citing this family (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3371337A
(en)
*
1964-07-23
1968-02-27
Westinghouse Electric Corp
High speed analog to binary converter
US3372579A
(en)
*
1964-12-18
1968-03-12
Whittaker Corp
Digital output transducer
GB1086908A
(en)
*
1965-07-26
1967-10-11
Standard Telephones Cables Ltd
Analogue-to-digital converter
FR1481960A
(en)
*
1966-01-10
1967-05-26
Societe D’etudes, Recherches Et Constructions Electroniques
Digital coding method and device
US3508249A
(en)
*
1966-04-04
1970-04-21
Gordon Eng Co
Digital-to-analog converter
US3568179A
(en)
*
1967-09-20
1971-03-02
Gen Electric
Analogue-to-digital converter
US3581303A
(en)
*
1967-10-06
1971-05-25
Trw Inc
Digital to analog converter
US3550113A
(en)
*
1967-11-15
1970-12-22
Ibm
Current-mode analog-to-digital converter
US3609308A
(en)
*
1968-04-23
1971-09-28
Chesapeake Instr Corp
Digital measuring systems
US3641565A
(en)
*
1969-09-02
1972-02-08
Dynamics Res Corp
Digital resolver
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2965891A
(en)
*
1955-06-21
1960-12-20
Schlumberger Well Surv Corp
Signal converting systems
US2988737A
(en)
*
1958-12-30
1961-06-13
Sperry Rand Corp
Analog-to-digital converter
1963
1963-08-16
US
US302573A
patent/US3247507A/en
not_active
Expired – Lifetime
1964
1964-08-11
GB
GB32715/64A
patent/GB1081753A/en
not_active
Expired
1964-08-14
FR
FR985252A
patent/FR1413945A/en
not_active
Expired
1964-08-14
SE
SE09867/64A
patent/SE332011B/xx
unknown
1964-08-17
DE
DE19641437157
patent/DE1437157A1/en
active
Pending
Also Published As
Publication number
Publication date
DE1437157A1
(en)
1969-10-09
US3247507A
(en)
1966-04-19
FR1413945A
(en)
1965-10-15
SE332011B
(en)
1971-01-25
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None