GB1501279A – N scale counter
– Google Patents
GB1501279A – N scale counter
– Google Patents
N scale counter
Info
Publication number
GB1501279A
GB1501279A
GB47508/75A
GB4750875A
GB1501279A
GB 1501279 A
GB1501279 A
GB 1501279A
GB 47508/75 A
GB47508/75 A
GB 47508/75A
GB 4750875 A
GB4750875 A
GB 4750875A
GB 1501279 A
GB1501279 A
GB 1501279A
Authority
GB
United Kingdom
Prior art keywords
gate
states
input
stages
shift register
Prior art date
1974-11-18
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
GB47508/75A
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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.)
1974-11-18
Filing date
1975-11-18
Publication date
1978-02-15
1975-11-18
Application filed by Tokyo Shibaura Electric Co Ltd
filed
Critical
Tokyo Shibaura Electric Co Ltd
1978-02-15
Publication of GB1501279A
publication
Critical
patent/GB1501279A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K21/00—Details of pulse counters or frequency dividers
H03K21/02—Input circuits
Abstract
1501279 Counting apparatus TOKYO SHIBAURA ELECTRIC CO Ltd 18 Nov 1975 [18 Nov 1974] 47508/75 Headings G4A and G4D A counting apparatus of the kind comprising a shift register 1-6, built from IGFET’s (Fig. 2, not shown), and having feedback to the first stage from the last and one other stage causing it to pass through a long sequence of distinguishable states is provided with means for presetting the individual stages of the register in predetermined states. In Fig. 1 the outputs of the first and last stages are fed back to the input of the first via an exclusive-OR gate 9. An AND-gate 8 is included in the path from the last stage. If the other input a of the AND-gate 8 is held at 1 level the shift register will pass through the maximum of 2n-1 different states. If however the input a is derived by an AND-gate 10 from selected true and inverted outputs of the register stages then a selected number of those is skipped; with the connections shown in Fig. 1 there are 40 states. An input on the SET (S) and RESET (R) lines causes the counter to assume one of those states immediately. The exclusive-OR gate 9 may have its second input from a different one of stages 1-5 (Fig. 9, not shown) or may be replaced by a coincidence gate. Gate 10 may be a NOR gate. In another modification (Fig. 6, not shown) having ten stages but wired to count through 262 states there are additional AND-gates 14 between the first and second and between the sixth and seven states of the shift register these gates both having their other input connected to receive the signal a from gate 10. The shift register circuit employs FET’s in a complementary circuit requiring a two phase input; the circuit is dynamic.
GB47508/75A
1974-11-18
1975-11-18
N scale counter
Expired
GB1501279A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP49132092A
JPS5158056A
(en)
1974-11-18
1974-11-18
N shinkauntakairo
Publications (1)
Publication Number
Publication Date
GB1501279A
true
GB1501279A
(en)
1978-02-15
Family
ID=15073289
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB47508/75A
Expired
GB1501279A
(en)
1974-11-18
1975-11-18
N scale counter
Country Status (3)
Country
Link
US
(1)
US3992635A
(en)
JP
(1)
JPS5158056A
(en)
GB
(1)
GB1501279A
(en)
Families Citing this family (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4267512A
(en)
*
1979-01-22
1981-05-12
Rustenburg William C
Digital frequency divider
JPS55123239A
(en)
*
1979-03-15
1980-09-22
Matsushita Electric Ind Co Ltd
Programmable divider
US4587665A
(en)
*
1982-10-15
1986-05-06
Matsushita Electric Industrial Co., Ltd.
Binary counter having buffer and coincidence circuits for the switched bistable stages thereof
JPS5981923A
(en)
*
1982-11-01
1984-05-11
Pioneer Electronic Corp
Counter circuit
US4691331A
(en)
*
1984-10-29
1987-09-01
American Telephone And Telegraph Company, At&T Bell Laboratories
Self-correcting frequency dividers
US4637038A
(en)
*
1985-04-30
1987-01-13
International Business Machines Corporation
High speed counter
JPS63304494A
(en)
*
1987-06-03
1988-12-12
Toshiba Corp
Semiconductor integrated circuit
US4951303A
(en)
*
1988-10-31
1990-08-21
Larson Lawrence E
High speed digital programmable frequency divider
JPH0313122A
(en)
*
1989-06-12
1991-01-22
Mitsubishi Electric Corp
Frequency dividing circuit
JP2868266B2
(en)
*
1990-01-25
1999-03-10
株式会社日本自動車部品総合研究所
Signal phase difference detection circuit and signal phase difference detection method
US5029191A
(en)
*
1990-01-29
1991-07-02
Allied-Signal Inc.
Binary counter with resolution doubling
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2853238A
(en)
*
1952-12-20
1958-09-23
Hughes Aircraft Co
Binary-coded flip-flop counters
US3363115A
(en)
*
1965-03-29
1968-01-09
Gen Micro Electronics Inc
Integral counting circuit with storage capacitors in the conductive path of steering gate circuits
US3548203A
(en)
*
1967-10-09
1970-12-15
Sapien Electronics Corp
High frequency reciprocal counting circuits employing a plurality of bistable circuits sequentially coupled to a succeeding circuit by means of coincidence gates and switches
US3621280A
(en)
*
1970-04-10
1971-11-16
Hughes Aircraft Co
Mosfet asynchronous dynamic binary counter
1974
1974-11-18
JP
JP49132092A
patent/JPS5158056A/en
active
Pending
1975
1975-11-17
US
US05/632,575
patent/US3992635A/en
not_active
Expired – Lifetime
1975-11-18
GB
GB47508/75A
patent/GB1501279A/en
not_active
Expired
Also Published As
Publication number
Publication date
US3992635A
(en)
1976-11-16
JPS5158056A
(en)
1976-05-21
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Legal Events
Date
Code
Title
Description
1978-06-28
PS
Patent sealed [section 19, patents act 1949]
1982-03-03
746
Register noted ‘licences of right’ (sect. 46/1977)
1995-12-20
PE20
Patent expired after termination of 20 years
Effective date:
19951117
