GB1376128A - Systems for monitoring mains electrical power supplies - Google Patents

Systems for monitoring mains electrical power supplies

Info

Publication number
GB1376128A
GB1376128A GB310671A GB310671A GB1376128A GB 1376128 A GB1376128 A GB 1376128A GB 310671 A GB310671 A GB 310671A GB 310671 A GB310671 A GB 310671A GB 1376128 A GB1376128 A GB 1376128A
Authority
GB
United Kingdom
Prior art keywords
receivers
load variations
signals
mains
tuned
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
GB310671A
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.)
GE Healthcare UK Ltd
Original Assignee
GE Healthcare UK 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 GE Healthcare UK Ltd filed Critical GE Healthcare UK Ltd
Priority to GB310671A priority Critical patent/GB1376128A/en
Priority to DE19722203092 priority patent/DE2203092A1/de
Priority to US00220010A priority patent/US3806805A/en
Priority to FR7202458A priority patent/FR2124850A5/fr
Publication of GB1376128A publication Critical patent/GB1376128A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H04H60/43—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
GB310671A 1971-01-25 1971-01-25 Systems for monitoring mains electrical power supplies Expired GB1376128A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB310671A GB1376128A (en) 1971-01-25 1971-01-25 Systems for monitoring mains electrical power supplies
DE19722203092 DE2203092A1 (de) 1971-01-25 1972-01-22 Verfahren und Anordnung zum UEberwachen des Betriebs von netzgespeisten Elektrogeraeten
US00220010A US3806805A (en) 1971-01-25 1972-01-24 Systems for monitoring mains electrical power supplies
FR7202458A FR2124850A5 (enExample) 1971-01-25 1972-01-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB310671A GB1376128A (en) 1971-01-25 1971-01-25 Systems for monitoring mains electrical power supplies

Publications (1)

Publication Number Publication Date
GB1376128A true GB1376128A (en) 1974-12-04

Family

ID=9752058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB310671A Expired GB1376128A (en) 1971-01-25 1971-01-25 Systems for monitoring mains electrical power supplies

Country Status (4)

Country Link
US (1) US3806805A (enExample)
DE (1) DE2203092A1 (enExample)
FR (1) FR2124850A5 (enExample)
GB (1) GB1376128A (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847685A (en) * 1987-08-07 1989-07-11 Audience Information Measurement System Audience survey system
GB9221678D0 (en) * 1992-10-15 1992-11-25 Taylor Nelson Group Limited Identifying a received programme stream
US5404160A (en) * 1993-06-24 1995-04-04 Berkeley Varitronics Systems, Inc. System and method for identifying a television program
AU9256398A (en) * 1997-08-01 1999-02-22 Sat.1 Satellitenfernsehen Gmbh Method and device for detecting the number of receivers receiving a particu lar transmitter simultaneously by detecting current consumption in an el ectric network
ES2324443B1 (es) * 2007-02-23 2010-06-01 Mediciones Electricas De Andalucia, S.L. Dispositivo de medicion de patrones de consumo a traves de la red electrica.
CA2702847A1 (en) * 2007-02-23 2008-08-28 Mediciones Electricas De Andalucia, S.L. Device for measuring consumption patterns through the electric network and method for the use thereof
EP3800895B1 (en) * 2017-06-16 2024-01-10 Sharp NEC Display Solutions, Ltd. Video monitoring method, video monitoring device, and video monitoring system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660664A (en) * 1947-10-24 1953-11-24 Nielsen A C Co Search signal apparatus for determining the listening habits of wave signal receiverusers
US2636671A (en) * 1949-10-21 1953-04-28 Rca Corp Radio audience counting system
US2716702A (en) * 1951-08-20 1955-08-30 William D Horn Automatic radio program rating system
US2947858A (en) * 1958-07-28 1960-08-02 Robert C Abbott Apparatus for determining the listening habits of wave signal receiver users

Also Published As

Publication number Publication date
FR2124850A5 (enExample) 1972-09-22
US3806805A (en) 1974-04-23
DE2203092A1 (de) 1972-08-24

Similar Documents

Publication Publication Date Title
CA1122278A (en) Apparatus and method for the identification of specially encoded fm stereophonic broadcasts
US4246655A (en) Circuit for providing an indication of signal/noise ratio in a selector diversity system
US2955199A (en) Radio diversity receiving system
US2903508A (en) Audience survey system
GB1376128A (en) Systems for monitoring mains electrical power supplies
GB973418A (en) Diversity receiving system
GB1411179A (en) Remote meter reading systems
US3881155A (en) Method and apparatus for detecting the multi-path of FM stereo broadcasted waves
DE69013341D1 (de) Fernsehsignalüberwachungsgerät.
US3703684A (en) Channel monitoring system for audience survey purposes
US4356510A (en) Television sound multiplex signal receiving device
US2306687A (en) Means for improving reception during selective fading
US2976411A (en) Automatic frequency control system suitable for single-sideband receivers, frequency modulation transmitters and the like
US3312900A (en) Television audience survey system
US3071643A (en) Stereophonic transmission system for television broadcasting
US3125640A (en) Stereophonic-broadcast indicating system and the like
US2929060A (en) Radio location system
US3170118A (en) Panoramic receiver for multiplexing communication signals from multiple sources
US2508983A (en) System responsive to failure of receivers
US3161727A (en) Sterophonic-to-monophonic reception apparatus
US3023272A (en) Automatic frequency control for television apparatus
US3106711A (en) Multiplex control system
US3436485A (en) Frequency doubler,stereo indicator circuitry for fm radio receivers
JPS5852734Y2 (ja) Ａｍ放送受信機
US2879390A (en) Phase controlled oscillator

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees