GB1435929A - Coded data enhancer systems - Google Patents

Coded data enhancer systems

Info

Publication number
GB1435929A
GB1435929A GB3715273A GB3715273A GB1435929A GB 1435929 A GB1435929 A GB 1435929A GB 3715273 A GB3715273 A GB 3715273A GB 3715273 A GB3715273 A GB 3715273A GB 1435929 A GB1435929 A GB 1435929A
Authority
GB
United Kingdom
Prior art keywords
counter
shift register
gates
clock
bit
Prior art date
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
GB3715273A
Other languages
English (en)
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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
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.)
Filing date
Publication date
Application filed by Bell and Howell Co filed Critical Bell and Howell Co
Publication of GB1435929A publication Critical patent/GB1435929A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H04L25/4908—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Manipulation Of Pulses (AREA)
GB3715273A 1972-08-04 1973-08-06 Coded data enhancer systems Expired GB1435929A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27813872A 1972-08-04 1972-08-04

Publications (1)

Publication Number Publication Date
GB1435929A true GB1435929A (en) 1976-05-19

Family

ID=23063823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3715273A Expired GB1435929A (en) 1972-08-04 1973-08-06 Coded data enhancer systems

Country Status (3)

Country Link
DE (1) DE2339007C2 (enExample)
FR (1) FR2195123B1 (enExample)
GB (1) GB1435929A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961204A (en) * 1988-05-23 1990-10-02 Hitachi, Ltd. PCM signal generating/reproducing apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108261A (en) * 1960-04-11 1963-10-22 Ampex Recording and/or reproducing system
DE1290598B (de) * 1966-01-13 1969-03-13 Siemens Ag Anordnung zur UEbertragung zusaetzlicher Signale ueber ein elektrisches Nachrichtenuebertragungssystem mittels Zeitraffung
CH504818A (de) * 1968-12-11 1971-03-15 Standard Telephon & Radio Ag Verfahren zur Datenübertragung über einen Kanal einer PCM-Nachrichtenanlage
US3587043A (en) * 1969-04-29 1971-06-22 Rca Corp Character parity synchronizer
BE756859A (fr) * 1969-09-30 1971-03-30 Siemens Ag Montage pour intercaler des signaux de commande dans une sequence de signaux d'information et pour extraire de tels signaux d'une sequence quicomprend des signaux d'information et de tels signaux de commande
GB1356102A (en) * 1970-06-16 1974-06-12 Post Office System for detecting malfunctioning of a digital transmission channel

Also Published As

Publication number Publication date
DE2339007A1 (de) 1974-02-14
DE2339007C2 (de) 1985-09-05
FR2195123A1 (enExample) 1974-03-01
FR2195123B1 (enExample) 1977-02-25

Similar Documents

Publication Publication Date Title
GB1315340A (en) Data processing apparatus
GB1451383A (en) Digital data processing apparatus
GB1469465A (en) Detection of errors in digital information transmission systems
GB1451508A (en) Digital data encoding and decoding apparatus
US3235855A (en) Binary magnetic recording apparatus
GB1352713A (en) Processing data
GB1476878A (en) Binary phase digital decoding system
GB1328163A (en) Error detecting apparatus
GB1402176A (en) Computer interface coding and decoding apparatus
US3600609A (en) Igfet read amplifier for double-rail memory systems
GB1423675A (en) Detection and correcting of errors in electronic pulse-coded data
GB1435929A (en) Coded data enhancer systems
GB945552A (en) Small gap data tape communication system
GB1210650A (en) Apparatus for encoding binary data
US4121195A (en) Error detection in digital systems
GB996433A (en) Data transmission systems
GB895637A (en) Improvements in data processing systems
GB1515740A (en) Zero code suppression in data transmission systems
GB768183A (en) Timing and clocking circuits for data processing machines
GB993163A (en) Error detection system
GB1352708A (en) Digital data handling apparatus
GB1427215A (en) Magnetic recording systems
US3560860A (en) Pulse generator of special signal for synchronizing receivers of master-remote system
GB984206A (en) Improvements in or relating to data communication apparatus
GB1521091A (en) Circuit arrangements for use in data transmission systems

Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee