NL6506144A - - Google Patents

Info

Publication number
NL6506144A
NL6506144A NL6506144A NL6506144A NL6506144A NL 6506144 A NL6506144 A NL 6506144A NL 6506144 A NL6506144 A NL 6506144A NL 6506144 A NL6506144 A NL 6506144A NL 6506144 A NL6506144 A NL 6506144A
Authority
NL
Netherlands
Prior art keywords
blocks
data
bit
level
binary
Prior art date
Application number
NL6506144A
Other languages
Unknown language ( )
Other versions
NL145426B (en
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 filed Critical
Publication of NL6506144A publication Critical patent/NL6506144A/
Publication of NL145426B publication Critical patent/NL145426B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0066—Detection of the synchronisation error by features other than the received signal transition detection of error based on transmission code rule
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
    • 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
    • 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
    • H04L25/4917—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 multilevel codes
    • H04L25/4919—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 multilevel codes using balanced multilevel codes

Abstract

1,076,557. Data transmission. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 13, 1965 [May 13, 1964], No. 20167/65. Heading H4P. In a data transmission system equal-length blocks of data are recoded into blocks of like length, each recoded block having one half of it the inverse of the other half, and all blocks having the same fundamental frequency. Four-bit blocks a, b, c, d, Fig. 6 (not shown), are used in the embodiment described, and are converted to four-level four-bit length blocks +A, +B, -A, -B, the conversion being A = 2a+b, B = 2c+d, where a . . . d are + 1v for binary 1 and - 1v for binary 0. The receiver includes means, not described, for recoding the four-level data to the original binary form, and also means for synchronizing sampling means which operates during only two of the four bit-periods in a received block. It is a characteristic of the received data that the signal level has values only of Œ3nV or Œ1nV, and has no D.C. component. Synchronization may be by way of the data itself or by use of a periodic sync. signal. The circuits for both systems are described.
NL656506144A 1964-05-13 1965-05-13 SYSTEM FOR THE TRANSFER OF DIGITAL DATA. NL145426B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR06007388A FR1404648A (en) 1964-05-13 1964-05-13 Data transmission method and device performing this transmission

Publications (2)

Publication Number Publication Date
NL6506144A true NL6506144A (en) 1965-11-15
NL145426B NL145426B (en) 1975-03-17

Family

ID=42199289

Family Applications (1)

Application Number Title Priority Date Filing Date
NL656506144A NL145426B (en) 1964-05-13 1965-05-13 SYSTEM FOR THE TRANSFER OF DIGITAL DATA.

Country Status (3)

Country Link
FR (1) FR1404648A (en)
GB (1) GB1076557A (en)
NL (1) NL145426B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1504609A (en) * 1966-09-21 1967-12-08 Ibm France Data transmission system
FR1511158A (en) * 1966-12-08 1968-01-26 Cie I B M France Data receiving system
GB2143096B (en) * 1983-07-06 1987-02-04 Motorola Israel Ltd Clock recovery circuit
DE3918551A1 (en) * 1989-06-03 1990-12-06 H U C Elektronik Gmbh METHOD FOR ANALOG TRANSFER OR STORING DIGITAL INFORMATION

Also Published As

Publication number Publication date
FR1404648A (en) 1965-07-02
NL145426B (en) 1975-03-17
GB1076557A (en) 1967-07-19

Similar Documents

Publication Publication Date Title
GB1079928A (en) A data transmission system
SE312353B (en)
GB1017322A (en) Improvements in and relating to pulse signal transmission and receiving systems
GB1136882A (en) Pm/am multiplex communication
GB1402176A (en) Computer interface coding and decoding apparatus
NL6506144A (en)
GB1048327A (en) Signal modulation
GB1146728A (en) Improvements in and relating to binary information transmission systems
GB996433A (en) Data transmission systems
GB1317831A (en) Data transmission system
US3636257A (en) Digital pulse identification system
GB1212340A (en) Transmission system comprising a transmitter and a receiver for the transmission of information in a prescribed frequency band
GB1024250A (en) Data transmission system by phase leading and lagging
GB1056363A (en) Circuit arrangement for reducing the distortion caused by a demodulator of frequency-modulated waves for telegraphic and data transmissions
GB1262156A (en) Apparatus for producing synchronisation in address-coded communication systems
GB1182509A (en) Landline Facsimile Transmission System
GB1115894A (en) Digital transmission system
GB987389A (en) Data transmission of variable block lengths over half duplex networks
ES345220A1 (en) Method of synchronization in binary communication systems
GB1026806A (en) Receiving apparatus and frequency shift keying systems for the utilisation thereof
GB970141A (en) Simplex telegraph installation,particularly for ships'traffic with automatic error correction
GB1036009A (en) Improvements in or relating to signal transmission
GB1018605A (en) Improvements in data transmission arrangements
GB1270816A (en) Duo-quaternary data transmission system
SE319523B (en)

Legal Events

Date Code Title Description
NR80 Reference from main patent to patent of addition

Ref document number: 148469

Country of ref document: NL

Date of ref document: 19750718

Format of ref document f/p: P

V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: INTER