GB1196885A – Improvements in or relating to Pulse Encoders.
– Google Patents
GB1196885A – Improvements in or relating to Pulse Encoders.
– Google Patents
Improvements in or relating to Pulse Encoders.
Info
Publication number
GB1196885A
GB1196885A
GB13782/69A
GB1378269A
GB1196885A
GB 1196885 A
GB1196885 A
GB 1196885A
GB 13782/69 A
GB13782/69 A
GB 13782/69A
GB 1378269 A
GB1378269 A
GB 1378269A
GB 1196885 A
GB1196885 A
GB 1196885A
Authority
GB
United Kingdom
Prior art keywords
accumulator
signals
coded
rate
march
Prior art date
1968-03-18
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
GB13782/69A
Inventor
Henry Stanton Mcdon Ald
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.)
AT&T Corp
Original Assignee
Western Electric Co 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.)
1968-03-18
Filing date
1969-03-17
Publication date
1970-07-01
1969-03-17
Application filed by Western Electric Co Inc
filed
Critical
Western Electric Co Inc
1970-07-01
Publication of GB1196885A
publication
Critical
patent/GB1196885A/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
H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
H03M7/3002—Conversion to or from differential modulation
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
H03M5/00—Conversion of the form of the representation of individual digits
Abstract
1,196,885. Analogue/digital converters. WESTERN ELECTRIC CO. Inc. 17 March, 1969 [18 March, 1968], No. 13782/69. Heading G4H. Signals derived from a delta modulator 11 representing an amplitude increase or decrease of an unknown analogue signal are fed to an accumulator 12, the coded count in which is read out at a rate at least equal to the Nyquist rate of the analogue signal, the delta modulator operating at a much higher rate so that the coded signals from the accumulator 12 are in differential P.C.M. form. The coded signal may be temporarily stored in a register 14 and serially transmitted. P.C.M. signals may be derived from the differential P.C.M. signals by adding th e coded outputs from the accumulator 12 in an accumulator 16.
GB13782/69A
1968-03-18
1969-03-17
Improvements in or relating to Pulse Encoders.
Expired
GB1196885A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US71389168A
1968-03-18
1968-03-18
Publications (1)
Publication Number
Publication Date
GB1196885A
true
GB1196885A
(en)
1970-07-01
Family
ID=24867958
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB13782/69A
Expired
GB1196885A
(en)
1968-03-18
1969-03-17
Improvements in or relating to Pulse Encoders.
Country Status (7)
Country
Link
US
(1)
US3526855A
(en)
BE
(1)
BE729857A
(en)
DE
(1)
DE1912981B2
(en)
FR
(1)
FR2004130A1
(en)
GB
(1)
GB1196885A
(en)
NL
(1)
NL6904079A
(en)
SE
(1)
SE340295B
(en)
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS513468B1
(en)
*
1970-10-28
1976-02-03
FR2115686A5
(en)
*
1970-11-30
1972-07-07
Labo Cent Telecommunicat
US3723909A
(en)
*
1971-06-21
1973-03-27
J Condon
Differential pulse code modulation system employing periodic modulator step modification
DE2131083C3
(en)
*
1971-06-23
1981-06-04
Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt
Messaging system
US3763433A
(en)
*
1972-01-13
1973-10-02
Univ Iowa State Res Found Inc
System and method for differential pulse code modulation of analog signals
US3772682A
(en)
*
1972-04-19
1973-11-13
Bell Telephone Labor Inc
Digital conversion from one pcm format to another
NL7400764A
(en)
*
1974-01-21
1975-07-23
Philips Nv
DIGITAL DEVICE FOR CONVERTING COMPRESSED DELTA MODULATED SIGNALS INTO PCM SIGNALS.
US3922619A
(en)
*
1974-01-28
1975-11-25
Bell Telephone Labor Inc
Compressed differential pulse code modulator
US4035724A
(en)
*
1974-05-08
1977-07-12
Universite De Sherbrooke
Digital converter from continuous variable slope delta modulation to pulse code modulation
US4039948A
(en)
*
1974-06-19
1977-08-02
Boxall Frank S
Multi-channel differential pulse code modulation system
FR2428348A1
(en)
*
1978-06-08
1980-01-04
Trt Telecom Radio Electr
DIGITAL REGULATOR OF THE LEVEL OF A FREQUENCY MULTIPLEX SIGNAL
US6002352A
(en)
*
1997-06-24
1999-12-14
International Business Machines Corporation
Method of sampling, downconverting, and digitizing a bandpass signal using a digital predictive coder
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2605361A
(en)
*
1950-06-29
1952-07-29
Bell Telephone Labor Inc
Differential quantization of communication signals
NL181666B
(en)
*
1953-09-28
Degussa
DEVICE FOR PREPARING OVEN SROET.
1968
1968-03-18
US
US713891A
patent/US3526855A/en
not_active
Expired – Lifetime
1969
1969-03-10
SE
SE03252/69A
patent/SE340295B/xx
unknown
1969-03-14
BE
BE729857D
patent/BE729857A/xx
unknown
1969-03-17
FR
FR6907536A
patent/FR2004130A1/fr
not_active
Withdrawn
1969-03-17
DE
DE1912981A
patent/DE1912981B2/en
active
Pending
1969-03-17
NL
NL6904079A
patent/NL6904079A/xx
unknown
1969-03-17
GB
GB13782/69A
patent/GB1196885A/en
not_active
Expired
Also Published As
Publication number
Publication date
DE1912981B2
(en)
1974-06-20
US3526855A
(en)
1970-09-01
DE1912981A1
(en)
1969-10-16
SE340295B
(en)
1971-11-15
NL6904079A
(en)
1969-09-22
FR2004130A1
(en)
1969-11-21
BE729857A
(en)
1969-08-18
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Legal Events
Date
Code
Title
Description
1970-11-11
PS
Patent sealed [section 19, patents act 1949]
1978-10-18
PCNP
Patent ceased through non-payment of renewal fee
