FI921098A - OEVERVAKNINGSTELEFONSYSTEM - Google Patents

OEVERVAKNINGSTELEFONSYSTEM Download PDF

Info

Publication number
FI921098A
FI921098A FI921098A FI921098A FI921098A FI 921098 A FI921098 A FI 921098A FI 921098 A FI921098 A FI 921098A FI 921098 A FI921098 A FI 921098A FI 921098 A FI921098 A FI 921098A
Authority
FI
Finland
Prior art keywords
oevervakningstelefonsystem
Prior art date
Application number
FI921098A
Other languages
Finnish (fi)
Other versions
FI921098A0 (en
Inventor
Jorma Romunen
Matti Kangas
Original Assignee
Fonel Oy
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 Fonel Oy filed Critical Fonel Oy
Priority to FI921098A priority Critical patent/FI921098A/en
Publication of FI921098A0 publication Critical patent/FI921098A0/en
Priority to PCT/FI1993/000092 priority patent/WO1993018594A1/en
Priority to CA 2131905 priority patent/CA2131905A1/en
Publication of FI921098A publication Critical patent/FI921098A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/06—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using power transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0291—Door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/106—Adaptations for transmission by electrical cable for domestic distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/108—Adaptations for transmission by electrical cable the cable being constituted by a pair of wires
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H04N7/186—Video door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5441—Wireless systems or telephone
FI921098A 1992-03-13 1992-03-13 OEVERVAKNINGSTELEFONSYSTEM FI921098A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI921098A FI921098A (en) 1992-03-13 1992-03-13 OEVERVAKNINGSTELEFONSYSTEM
PCT/FI1993/000092 WO1993018594A1 (en) 1992-03-13 1993-03-15 A monitoring phone system
CA 2131905 CA2131905A1 (en) 1992-03-13 1993-03-15 A monitoring phone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI921098A FI921098A (en) 1992-03-13 1992-03-13 OEVERVAKNINGSTELEFONSYSTEM

Publications (2)

Publication Number Publication Date
FI921098A0 FI921098A0 (en) 1992-03-13
FI921098A true FI921098A (en) 1993-09-14

Family

ID=8534921

Family Applications (1)

Application Number Title Priority Date Filing Date
FI921098A FI921098A (en) 1992-03-13 1992-03-13 OEVERVAKNINGSTELEFONSYSTEM

Country Status (3)

Country Link
CA (1) CA2131905A1 (en)
FI (1) FI921098A (en)
WO (1) WO1993018594A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1275229B (en) * 1995-02-09 1997-07-31 Bticino Spa VIDEO DOOR PHONE THAT ALLOWS THE SELECTION OF PORTIONS OF THE CAMERA, THEIR STORAGE AND THEIR ENLARGEMENT
ES2122849B1 (en) * 1995-03-03 1999-10-01 Fernandez Minaya Miguel Angel ELECTRONIC SIGHT SIGHT FOR DOOR OF ACCESS TO HOUSING AND VISIONADO IN DOMESTIC TELEVISION.
CN1045239C (en) * 1996-03-30 1999-09-22 重庆今诚科技开发有限公司 Broard cast method by carrier transmitted on power lines between phases
DE19738784C2 (en) * 1997-09-04 1999-07-01 Loh Kg Ritto Werk System with a door station and several home stations that are connected to each other via a two-wire bus line
JP2000332908A (en) * 1999-05-17 2000-11-30 Kyocera Corp Portable video telephone terminal
PL2765054T3 (en) 2013-02-06 2016-10-31 Trolley for conveying containers for pieces or components in an industrial plant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093706A (en) * 1958-02-25 1963-06-11 Electronic Measurement Systems Television system
GB8606881D0 (en) * 1986-03-20 1986-04-23 Musical Electronics Ltd Video distribution system
US4912553A (en) * 1986-03-28 1990-03-27 Pal Theodore L Wideband video system for single power line communications
FR2634338A1 (en) * 1988-07-18 1990-01-19 Milly Lucien Methods and hardware, which are at once enhanced, simplified and economical, for so-called "cable" television
WO1990004306A1 (en) * 1988-10-13 1990-04-19 International Media Communications Plc Signal transmission

Also Published As

Publication number Publication date
CA2131905A1 (en) 1993-09-16
FI921098A0 (en) 1992-03-13
WO1993018594A1 (en) 1993-09-16

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Legal Events

Date Code Title Description
FD Application lapsed