GB1018000A - Traffic flow characteristic determining apparatus - Google Patents

Traffic flow characteristic determining apparatus

Info

Publication number
GB1018000A
GB1018000A GB42212/65A GB4221265A GB1018000A GB 1018000 A GB1018000 A GB 1018000A GB 42212/65 A GB42212/65 A GB 42212/65A GB 4221265 A GB4221265 A GB 4221265A GB 1018000 A GB1018000 A GB 1018000A
Authority
GB
United Kingdom
Prior art keywords
traffic flow
flow characteristic
determining apparatus
characteristic determining
sept
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
GB42212/65A
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.)
Laboratory For Electronics Inc
Original Assignee
Laboratory For Electronics 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.)
Filing date
Publication date
Priority claimed from US137354A external-priority patent/US3239805A/en
Application filed by Laboratory For Electronics Inc filed Critical Laboratory For Electronics Inc
Publication of GB1018000A publication Critical patent/GB1018000A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
    • G06G7/184—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
    • G06G7/76—Analogue computers for specific processes, systems or devices, e.g. simulators for traffic
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Software Systems (AREA)
  • Traffic Control Systems (AREA)
  • Amplifiers (AREA)

Abstract

1,018,000. Road traffic measurement. LABORATORY FOR ELECTRONICS Inc. Sept. 11, 1962 [Sept. 11, 1961], No. 42212/65. Divided out of 1,017,999. Heading G4Q. The subject matter is substantially the same as that disclosed in Specification 1,017,999 but the claims differ.
GB42212/65A 1961-09-11 1962-09-11 Traffic flow characteristic determining apparatus Expired GB1018000A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US137354A US3239805A (en) 1961-09-11 1961-09-11 Traffic density computer
US419155A US3389244A (en) 1961-09-11 1964-12-17 Traffic volume or speed computer with zener diode in feedback circuit

Publications (1)

Publication Number Publication Date
GB1018000A true GB1018000A (en) 1966-01-26

Family

ID=26835168

Family Applications (2)

Application Number Title Priority Date Filing Date
GB34760/62A Expired GB1017999A (en) 1961-09-11 1962-09-11 Traffic density measuring apparatus
GB42212/65A Expired GB1018000A (en) 1961-09-11 1962-09-11 Traffic flow characteristic determining apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB34760/62A Expired GB1017999A (en) 1961-09-11 1962-09-11 Traffic density measuring apparatus

Country Status (2)

Country Link
US (1) US3389244A (en)
GB (2) GB1017999A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506809A (en) * 1967-02-21 1970-04-14 Lfe Corp Speed averaging circuit
US3585502A (en) * 1968-07-31 1971-06-15 Ampex Method and apparatus for subperiod measurement of successive variable time periods
US3711686A (en) * 1971-06-08 1973-01-16 Tamar Electronics Ind Traffic volume computer
JP4329711B2 (en) * 2005-03-09 2009-09-09 株式会社日立製作所 Traffic information system
JP4950590B2 (en) * 2006-08-07 2012-06-13 クラリオン株式会社 Traffic information providing apparatus, traffic information providing system, traffic information transmission method, and traffic information request method
JP4729469B2 (en) * 2006-11-10 2011-07-20 日立オートモティブシステムズ株式会社 Traffic information system
JP4547408B2 (en) * 2007-09-11 2010-09-22 日立オートモティブシステムズ株式会社 Traffic condition prediction device and traffic condition prediction method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933716A (en) * 1957-01-22 1960-04-19 Robert P Strakas Automatic traffic control
US3193798A (en) * 1959-05-29 1965-07-06 Lab For Electronics Inc Traffic density meter
US3185959A (en) * 1959-12-24 1965-05-25 Lab For Electronics Inc Traffic monitoring system
US3239653A (en) * 1960-09-08 1966-03-08 Lab For Electronics Inc Traffic density computer
US3233084A (en) * 1960-12-27 1966-02-01 Gen Signals Corp Methods and apparatus for obtaining traffic data

Also Published As

Publication number Publication date
GB1017999A (en) 1966-01-26
US3389244A (en) 1968-06-18

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