NL228663A - - Google Patents

Info

Publication number
NL228663A
NL228663A NL228663DA NL228663A NL 228663 A NL228663 A NL 228663A NL 228663D A NL228663D A NL 228663DA NL 228663 A NL228663 A NL 228663A
Authority
NL
Netherlands
Application number
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.)
Publication of NL228663A publication Critical patent/NL228663A/xx
Priority claimed from GB12060/51A external-priority patent/GB744352A/en
Priority claimed from GB783453A external-priority patent/GB765072A/en
Priority claimed from GB1941057A external-priority patent/GB845216A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/16—Handling requests for interconnection or transfer for access to memory bus
    • G06F13/1668—Details of memory controller
    • G06F13/1689—Synchronisation and timing concerns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/04—Digital computers in general; Data processing equipment in general programmed simultaneously with the introduction of data to be processed, e.g. on the same record carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/492—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination
    • G06F7/493—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination the representation being the natural binary coded representation, i.e. 8421-code
    • G06F7/494—Adding; Subtracting
    • G06F7/495—Adding; Subtracting in digit-serial fashion, i.e. having a single digit-handling circuit treating all denominations after each other
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/16—Digital recording or reproducing using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/22—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using ferroelectric elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • 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
    • 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
    • H03M7/02—Conversion to or from weighted codes, i.e. the weight given to a digit depending on the position of the digit within the block or code word
    • H03M7/06—Conversion to or from weighted codes, i.e. the weight given to a digit depending on the position of the digit within the block or code word the radix thereof being a positive integer different from two
    • H03M7/08—Conversion to or from weighted codes, i.e. the weight given to a digit depending on the position of the digit within the block or code word the radix thereof being a positive integer different from two the radix being ten, i.e. pure decimal code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/08—Intermediate storage means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
    • H04L25/242—Relay circuits using discharge tubes or semiconductor devices with retiming
    • H04L25/245—Relay circuits using discharge tubes or semiconductor devices with retiming for start-stop signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/492—Indexing scheme relating to groups G06F7/492 - G06F7/496
    • G06F2207/4923—Incrementer or decrementer

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Power Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Complex Calculations (AREA)
  • Electronic Switches (AREA)
  • Magnetic Heads (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Lubricants (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Color Printing (AREA)
  • Power Conversion In General (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Digital Magnetic Recording (AREA)
  • Read Only Memory (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
NL228663D 1951-05-23 NL228663A (sl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB12060/51A GB744352A (en) 1953-03-20 1951-05-23 Improvements in or relating to intelligence storage equipment
GB783453A GB765072A (en) 1953-03-20 1953-03-20 Improvements in or relating to data processing equipment
NL794126X 1954-06-25
GB1941057A GB845216A (en) 1957-06-20 1957-06-20 Improvements in or relating to electrical calculating circuits

Publications (1)

Publication Number Publication Date
NL228663A true NL228663A (sl)

Family

ID=32996118

Family Applications (6)

Application Number Title Priority Date Filing Date
NL191886D NL191886A (sl) 1951-05-23
NL220663D NL220663A (sl) 1951-05-23
NL85732D NL85732C (sl) 1951-05-23
NL228663D NL228663A (sl) 1951-05-23
NL99218D NL99218C (sl) 1951-05-23
NL96174D NL96174C (sl) 1951-05-23

Family Applications Before (3)

Application Number Title Priority Date Filing Date
NL191886D NL191886A (sl) 1951-05-23
NL220663D NL220663A (sl) 1951-05-23
NL85732D NL85732C (sl) 1951-05-23

Family Applications After (2)

Application Number Title Priority Date Filing Date
NL99218D NL99218C (sl) 1951-05-23
NL96174D NL96174C (sl) 1951-05-23

Country Status (7)

Country Link
US (10) US2838745A (sl)
BE (5) BE527585A (sl)
CH (10) CH320960A (sl)
DE (8) DE1120184B (sl)
FR (10) FR1065479A (sl)
GB (9) GB744356A (sl)
NL (6) NL96174C (sl)

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Also Published As

Publication number Publication date
FR1065479A (fr) 1954-05-26
DE970229C (de) 1958-08-28
US2865563A (en) 1958-12-23
CH332299A (de) 1958-08-31
GB744358A (en) 1956-02-08
GB786724A (en) 1957-11-27
GB786722A (en) 1957-11-27
US3001021A (en) 1961-09-19
CH361829A (de) 1962-05-15
FR66637E (fr) 1957-06-18
CH320958A (de) 1957-04-15
US2838745A (en) 1958-06-10
BE568569A (sl)
US2807004A (en) 1957-09-17
DE1088089B (de) 1960-09-01
CH332298A (de) 1958-08-31
FR72307E (fr) 1960-03-31
BE527585A (sl)
CH322831A (de) 1957-06-30
NL191886A (sl)
US2927305A (en) 1960-03-01
CH317179A (de) 1956-11-15
DE1120184B (de) 1961-12-21
CH329941A (de) 1958-05-15
DE955429C (de) 1957-01-03
BE532922A (sl)
NL220663A (sl)
NL96174C (sl)
GB744400A (en) 1956-02-08
DE1016768B (de) 1957-10-03
GB794126A (en) 1958-04-30
US2932009A (en) 1960-04-05
CH320959A (de) 1957-04-15
BE527413A (sl)
FR72306E (fr) 1960-03-31
CH320960A (de) 1957-04-15
NL99218C (sl)
GB786721A (en) 1957-11-27
FR69052E (fr) 1958-09-22
US3130300A (en) 1964-04-21
DE1025447B (de) 1958-03-06
FR72309E (fr) 1960-03-31
FR72305E (fr) 1960-03-31
US2868447A (en) 1959-01-13
FR69051E (fr) 1958-09-22
US3025351A (en) 1962-03-13
FR69054E (fr) 1958-09-22
FR69056E (fr) 1958-09-22
US3039683A (en) 1962-06-19
GB744356A (en) 1956-02-08
CH337571A (de) 1959-04-15
NL85732C (sl)
GB786723A (en) 1957-11-27
GB744357A (en) 1956-02-08
DE1082435B (de) 1960-05-25
DE973024C (de) 1959-11-19
BE530180A (sl)

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