GB1355557A - Creation of Inventions and Patents with Artificial Intelligence

GB1355557A – Digital encoding transducer
– Google Patents

GB1355557A – Digital encoding transducer
– Google Patents
Digital encoding transducer

Info

Publication number
GB1355557A

GB1355557A
GB3103571A
GB3103571A
GB1355557A
GB 1355557 A
GB1355557 A
GB 1355557A
GB 3103571 A
GB3103571 A
GB 3103571A
GB 3103571 A
GB3103571 A
GB 3103571A
GB 1355557 A
GB1355557 A
GB 1355557A
Authority
GB
United Kingdom
Prior art keywords
decade
positions
brush
signal
brushes
Prior art date
1970-10-22
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
GB3103571A
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.)

HOUSTON NATURAL GAS CORP

Original Assignee
HOUSTON NATURAL GAS CORP
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.)
1970-10-22
Filing date
1971-07-02
Publication date
1974-06-05

1971-07-02
Application filed by HOUSTON NATURAL GAS CORP
filed
Critical
HOUSTON NATURAL GAS CORP

1974-06-05
Publication of GB1355557A
publication
Critical
patent/GB1355557A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03M—CODING; DECODING; CODE CONVERSION IN GENERAL

H03M1/00—Analogue/digital conversion; Digital/analogue conversion

H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters

H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence

H03M1/0675—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy

H03M1/0687—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using fault-tolerant coding, e.g. parity check, error correcting codes

G—PHYSICS

G01—MEASURING; TESTING

G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR

G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable

G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means

G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts

G—PHYSICS

G06—COMPUTING; CALCULATING OR COUNTING

G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR

G06M1/00—Design features of general application

G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum

G06M1/276—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using mechanically-actuated contacts

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES

H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand

H01H19/001—Thumb wheel switches

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

H03M1/22—Analogue/digital converters pattern-reading type

H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip

H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding

H03M1/285—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding of the unit Hamming distance type, e.g. Gray code

Abstract

1355557 Selective signalling HOUSTON NATURAL GAS CORP 2 July 1971 [22 Oct 1970] 31035/71 Heading G4H A digital encoding transducer which measures the angular position of rotatable geared shafts 14, Fig. 2, representing successive decades of a register (e.g. for a gas meter), incorporates means for detecting and correcting positional errors in the decade readings. Attached to each shaft are brushes 62-72 which coact with a switch pattern A-E, G (ground) to generate a five bit code (for each decade in turn) which represents thirty angular positions 01-911. The segments are arranged so that the change in code between adjacent positions is one bit and so that each brush contacts only one segment at a time. The positions include ten numbered positions 0-9 each having two interface positions (e.g. 01, 011) which are angularly less than 10% thereof but greater than the positional errors. Such errors may be caused when a brush either leads or lags with respect to its correct position (Fig. 6): as the brushes 84 read off the values 0-9 from a decade, corresponding brushes 86 on the next higher decade move across a numbered position NH and its interface positions NH1, NH11. Since these latter are less than 10% of NH, a misplaced brush 86 will only give rise to an incorrect reading when brush 84 is traversing positions 01, 0, 011 and 91, 9, 911 (the incorrect reading being the result of a lagging and a leading brush respectively). To remove such an error the signals are decoded and stored in an appropriate memory, and the uncorrected higher order signals …, NH1, NH, NH11, … are fed to the circuit of Fig. 4, which includes NOR gates 147 &c., and NOR gates 149 &c. which are enabled by a signal 126, 127 or 128, according as the position read by the lower decade is in the range 1-8 (when no correction is necessary) or is 0 or 9. The resulting signal from NOR gate 140 &c. then represents the higher decade signal corrected in the light of the particular lower decade -signal which obtains, so that the positional errors are eliminated from one decade to the next. The correction procedure operates from the lowest to the highest decade, and a special procedure is built in (Fig. 4A, not shown) for processing the lowest decade signal, which is always assumed to be correct.

GB3103571A
1970-10-22
1971-07-02
Digital encoding transducer

Expired

GB1355557A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US8313270A

1970-10-22
1970-10-22

Publications (1)

Publication Number
Publication Date

GB1355557A
true

GB1355557A
(en)

1974-06-05

Family
ID=22176393
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3103571A
Expired

GB1355557A
(en)

1970-10-22
1971-07-02
Digital encoding transducer

Country Status (6)

Country
Link

US
(1)

US3683368A
(en)

CA
(1)

CA941068A
(en)

DE
(1)

DE2152738C3
(en)

FR
(1)

FR2156416B1
(en)

GB
(1)

GB1355557A
(en)

NL
(1)

NL7113512A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2168862A
(en)

1984-12-19
1986-06-25
Smith Meters Ltd
Commodity meters

Families Citing this family (12)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3896298A
(en)

1971-11-10
1975-07-22
Tri Tech
Counting device

US3855585A
(en)

1973-06-21
1974-12-17
Vapor Corp
System for generating a digital signal indicative of shaft position with automatic error correction

GB2003000B
(en)

1977-07-27
1982-01-20
British Aircraft Corp Ltd
Conveying data signals between relatively rotatable units

DE2753382C3
(en)

1977-11-30
1981-07-09
A. Ott, Gmbh, 8960 Kempten

Angle encoder

US4246643A
(en)

1978-02-13
1981-01-20
Pitney Bowes Inc.
Low cost postage applicator

US4214152A
(en)

1978-05-12
1980-07-22
Cain Encoder Company
Error correction in a remote meter reading device

GB2034991B
(en)

1978-11-16
1983-03-02
Vickers Ltd
Encoding switches

JPS622271Y2
(en)

1979-02-08
1987-01-20

US4652877A
(en)

1983-07-01
1987-03-24
Rockwell International Corporation
Meter data gathering and transmission system

US4606008A
(en)

1983-07-25
1986-08-12
Cain Encoder Company
Angular position detector

BE902500A
(en)

1985-05-24
1985-09-16
Aquacom Sa
Counter-totaliser for metering fluids or electricity – has gear-train division with code wheels carrying switch contacts giving digital output

DE10009707A1
(en)

2000-02-29
2001-09-06
Pilz Gmbh & Co
Safety switch with first and second input switches which initiate electronic timers

Family Cites Families (7)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3054996A
(en)

1960-12-22
1962-09-18
Datex Corp
Analog-to-digital converter

US3165733A
(en)

1961-07-19
1965-01-12
Transitel Internat Corp
Code stack

US3286251A
(en)

1963-02-15
1966-11-15
Gen Precision Inc
Analog-to-digital encoder

FR1409018A
(en)

1963-10-21
1965-08-20
Ufkin Res Lab

Interpolation analog-to-digital converter system

US3299423A
(en)

1964-03-09
1967-01-17
Hersey Sparling Meter Company
Digital encoder

US3314063A
(en)

1964-03-20
1967-04-11
Transitel Internat Corp
Meter register gear encoder

GB1108914A
(en)

1964-06-09
1968-04-10
Moore Reed And Company Ltd
Improvements in or relating to contact encoders

1970

1970-10-22
US
US83132A
patent/US3683368A/en
not_active
Expired – Lifetime

1971

1971-06-02
CA
CA114,609A
patent/CA941068A/en
not_active
Expired

1971-07-02
GB
GB3103571A
patent/GB1355557A/en
not_active
Expired

1971-07-07
FR
FR7124790A
patent/FR2156416B1/fr
not_active
Expired

1971-10-01
NL
NL7113512A
patent/NL7113512A/xx
not_active
Application Discontinuation

1971-10-22
DE
DE2152738A
patent/DE2152738C3/en
not_active
Expired

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2168862A
(en)

1984-12-19
1986-06-25
Smith Meters Ltd
Commodity meters

Also Published As

Publication number
Publication date

DE2152738A1
(en)

1972-05-25

DE2152738B2
(en)

1978-01-12

FR2156416A1
(en)

1973-06-01

DE2152738C3
(en)

1978-09-07

US3683368A
(en)

1972-08-08

CA941068A
(en)

1974-01-29

NL7113512A
(en)

1972-04-25

FR2156416B1
(en)

1976-08-20

Contact information