GB1354231A - Creation of Inventions and Patents with Artificial Intelligence

GB1354231A – Electronically controlled time-keeping device
– Google Patents

GB1354231A – Electronically controlled time-keeping device
– Google Patents
Electronically controlled time-keeping device

Info

Publication number
GB1354231A

GB1354231A
GB1263872A
GB1263872A
GB1354231A
GB 1354231 A
GB1354231 A
GB 1354231A
GB 1263872 A
GB1263872 A
GB 1263872A
GB 1263872 A
GB1263872 A
GB 1263872A
GB 1354231 A
GB1354231 A
GB 1354231A
Authority
GB
United Kingdom
Prior art keywords
time
signal
output
carry
registers
Prior art date
1971-03-20
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
GB1263872A
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.)

Seikosha KK

Original Assignee
Seikosha KK
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.)
1971-03-20
Filing date
1972-03-17
Publication date
1974-06-05

1972-03-17
Application filed by Seikosha KK
filed
Critical
Seikosha KK

1974-06-05
Publication of GB1354231A
publication
Critical
patent/GB1354231A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G04—HOROLOGY

G04G—ELECTRONIC TIME-PIECES

G04G3/00—Producing timing pulses

G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency

G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses

G—PHYSICS

G04—HOROLOGY

G04G—ELECTRONIC TIME-PIECES

G04G3/00—Producing timing pulses

G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency

G04G3/025—Circuits for deriving low frequency timing pulses from pulses of higher frequency by storing time-date which are periodically investigated and modified accordingly, e.g. by using cyclic shift-registers

G—PHYSICS

G04—HOROLOGY

G04G—ELECTRONIC TIME-PIECES

G04G5/00—Setting, i.e. correcting or changing, the time-indication

G04G5/04—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently

G04G5/043—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently using commutating devices for selecting the value, e.g. hours, minutes, seconds, to be corrected

Abstract

1354231 Electronic timepieces SEIKOSHA KK 17 March 1972 [20 March 1971] 12638/72 Heading G3T An electronic timepiece includes a timing pulse generator, logic circuit frequency dividers and counters and electrically activated digital time display. Fig. 1 illustrates a 12 hour cycle timepiece wherein the timing pulse generator 1b (which also incorporates a 1/n frequency divider and decoder) produces a timing pulse every time it receives a pulse from a time standard pulse generator 1a, one of which timing pulses is produced at outputs a 1 —– an in turn. Shift registers 2, 3, 4, 5 memorize the timing pulses, each register having “n” bits of memory equal to the number of outputs of the generator 1b. Each pulse, e.g. the nth, (n + 1)th &c., from pulse generator 1b operates to shift the memory content of the shift registers 2, 3, 4, 5 to the right by one position. Halfadders 6, 7, 8, 9 count time by respectively adding the counting time signal output of each register respectively to an output signal from an OR gate 17 to produce an adding time signal. A carry register 10 memorizes temporarily a carry signal produced at an output 9d of halfadder 9 and supplies a carry signal to the halfadders when the next counting time signal is produced by the registers. A carry controller 11, operated by the outputs of the registers, controls the carry of each digit place of the time indication and produces an output comprising a carry signal stored in carry register 10 and a signal from timing pulse generator 1b. Outputs of the shift registers 2, 3, 4, 5, when decoded, cause selective illumination of display elements in a display 23. Time setting can be effected by operation of a select switch 29 which selects any terminal a 1 a 2 — a n of the generator 1b whereby any digit of time can be reset to zero upon closure of a reset switch 26. To advance the time indication of a digit selected e. g. that corresponding to a 1 , a switch 28 is closed and an output logic “1” signal is produced and memorized in time advance circuit 27. The output of 27 is fed to input 6b of half-adder 6 where it is added to the output of shift register 2 and a time advance is achieved. An initial error preventive circuit 12 is provided to prevent errors due to spurious signals or ‘noise’ from a power supply source to which the timepiece may be connected and which is signified by a counting time signal from the registers of too high a value. Upon this occurrence the circuit 12 resets the registers. A 24-hour cycle timepiece is described with reference to Figs. 2A, 2B (not shown). It is stated that with two more memory bits in the shift registers the date and day may be indicated, in addition to the ten places (digits) of the time indication with the circuits described, the first place of which is units digit of the millisecond and the last the tens digit of the hours. The timepiece may also be used as a stopwatch.

GB1263872A
1971-03-20
1972-03-17
Electronically controlled time-keeping device

Expired

GB1354231A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

JP1566871A

JPS5327630B1
(en)

1971-03-20
1971-03-20

Publications (1)

Publication Number
Publication Date

GB1354231A
true

GB1354231A
(en)

1974-06-05

Family
ID=11895106
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB1263872A
Expired

GB1354231A
(en)

1971-03-20
1972-03-17
Electronically controlled time-keeping device

Country Status (4)

Country
Link

US
(1)

US3798428A
(en)

JP
(1)

JPS5327630B1
(en)

FR
(1)

FR2130450B1
(en)

GB
(1)

GB1354231A
(en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB1450072A
(en)

1972-10-02
1976-09-22
Citizen Watch Co Ltd
Electronic timepiece

US3988886A
(en)

1973-08-14
1976-11-02
Casio Computer Co., Ltd.
Time setting device for an electronic watch

US3940595A
(en)

1974-05-30
1976-02-24
American Medical Electronics Corporation
Electronic thermometer decoder and display system

JPH0310916B2
(en)

1974-10-31
1991-02-14
Citizen Watch Co Ltd

US4025774A
(en)

1975-06-16
1977-05-24
American Hospital Supply Corporation
Timing apparatus including electronic calculator circuits

JPS525565A
(en)

1975-07-02
1977-01-17
Toshiba Corp
Electric clock circuit

JPS52101739A
(en)

1975-10-31
1977-08-26
Toshiba Corp
Digital timer for electronic range

JPS5280174A
(en)

1975-12-26
1977-07-05
Casio Comput Co Ltd
Watch device

CH624264B
(en)

1976-06-24

Casio Computer Co Ltd

ELECTRONIC TIMEPIECE.

US4146779A
(en)

1977-02-28
1979-03-27
Osborne-Hoffman, Inc.
Display controller for time recorders and time actuators

US4256954A
(en)

1977-04-01
1981-03-17
Texas Instruments Incorporated
Fast binary coded decimal incrementing circuit

US4267587A
(en)

1978-02-17
1981-05-12
Casio Computer Co., Ltd.
Electronic timepiece circuit

US4242728A
(en)

1978-02-27
1980-12-30
The Bendix Corporation
Input/output electronic for microprocessor-based engine control system

JPS54122944A
(en)

1978-03-16
1979-09-22
Toshiba Corp
Logic circuit

US4449196A
(en)

1979-04-27
1984-05-15
Pritchard Eric K
Data processing system for multi-precision arithmetic

EP2916193B1
(en)

2014-03-06
2016-07-27
EM Microelectronic-Marin SA
Time base including an oscillator, a frequency-divider circuit and a timing pulse inhibition circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3521036A
(en)

1966-11-01
1970-07-21
Stromberg Carlson Corp
Binary coded decimal counter

US3656122A
(en)

1969-12-11
1972-04-11
Bell Telephone Labor Inc
TIME-SHARED SHIFT REGISTER COUNTER WITH COUNT MODIFIED EACH Nth RECIRCULATION

US3664117A
(en)

1970-06-05
1972-05-23
Gen Electric
Non-time indicating number correction circuit

US3656060A
(en)

1971-01-15
1972-04-11
Ibm
Time interval measuring and accumulating device

1971

1971-03-20
JP
JP1566871A
patent/JPS5327630B1/ja
active
Pending

1972

1972-03-17
GB
GB1263872A
patent/GB1354231A/en
not_active
Expired

1972-03-20
FR
FR7209615A
patent/FR2130450B1/fr
not_active
Expired

1972-03-20
US
US00235959A
patent/US3798428A/en
not_active
Expired – Lifetime

Also Published As

Publication number
Publication date

FR2130450A1
(en)

1972-11-03

US3798428A
(en)

1974-03-19

JPS5327630B1
(en)

1978-08-09

DE2213460A1
(en)

1972-12-21

DE2213460B2
(en)

1976-06-16

FR2130450B1
(en)

1976-10-29

Contact information