AU575409B2 - Frequency measuring device - Google Patents

Frequency measuring device

Info

Publication number
AU575409B2
AU575409B2 AU44165/85A AU4416585A AU575409B2 AU 575409 B2 AU575409 B2 AU 575409B2 AU 44165/85 A AU44165/85 A AU 44165/85A AU 4416585 A AU4416585 A AU 4416585A AU 575409 B2 AU575409 B2 AU 575409B2
Authority
AU
Australia
Prior art keywords
measuring device
frequency measuring
frequency
measuring
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.)
Ceased
Application number
AU44165/85A
Other versions
AU4416585A (en
Inventor
Graham David Lill
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.)
ADT Services GmbH
Original Assignee
Philips Industries Holdings Ltd
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 Philips Industries Holdings Ltd filed Critical Philips Industries Holdings Ltd
Priority to AU44165/85A priority Critical patent/AU575409B2/en
Publication of AU4416585A publication Critical patent/AU4416585A/en
Application granted granted Critical
Publication of AU575409B2 publication Critical patent/AU575409B2/en
Assigned to PHILIPS ELECTRONICS AUSTRALIA LIMITED reassignment PHILIPS ELECTRONICS AUSTRALIA LIMITED Request to Amend Deed and Register Assignors: PHILIPS INDUSTRIES HOLDINGS LIMITED
Assigned to ADT SERVICES AG reassignment ADT SERVICES AG Alteration of Name(s) in Register under S187 Assignors: PHILIPS ELECTRONICS AUSTRALIA LIMITED
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
AU44165/85A 1984-06-29 1984-06-29 Frequency measuring device Ceased AU575409B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU44165/85A AU575409B2 (en) 1984-06-29 1984-06-29 Frequency measuring device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG5761 1984-06-29
AU44165/85A AU575409B2 (en) 1984-06-29 1984-06-29 Frequency measuring device

Publications (2)

Publication Number Publication Date
AU4416585A AU4416585A (en) 1986-01-02
AU575409B2 true AU575409B2 (en) 1988-07-28

Family

ID=3731396

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44165/85A Ceased AU575409B2 (en) 1984-06-29 1984-06-29 Frequency measuring device

Country Status (1)

Country Link
AU (1) AU575409B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7212881A (en) * 1980-06-23 1982-01-07 Beloit Corporation Continous sheet discharge and collection
AU555872B2 (en) * 1982-08-13 1986-10-16 Sarasota Automation Ltd. Inductive loop vehicle detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7212881A (en) * 1980-06-23 1982-01-07 Beloit Corporation Continous sheet discharge and collection
AU555872B2 (en) * 1982-08-13 1986-10-16 Sarasota Automation Ltd. Inductive loop vehicle detector

Also Published As

Publication number Publication date
AU4416585A (en) 1986-01-02

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Legal Events

Date Code Title Description
PC Assignment registered

Owner name: ADT SERVICES AG

Free format text: FORMER OWNER WAS: PHILIPS ELECTRONICS AUSTRALIA LIMITED