The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 16, 1987

Filed:

Jan. 07, 1986
Applicant:
Inventors:

Tetsuo Ito, Hitachi, JP;

Setsuo Arita, Hitachi, JP;

Wataru Kitaura, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; G08B / ;
U.S. Cl.
CPC ...
358108 ; 358 86 ; 340531 ; 340534 ;
Abstract

Plural television cameras situated at monitored sites, each assigned with a particular code, generate image signals of the sites. An image signal transmitting unit receives those signals and transmits an image transmission signal over a transmission a monitoring site. The transmission signal is so formed that one channel of the transmission line which is divided into plural channels is assigned to the transmission of an image signal of high priority sites so as, to reproduce a full motion image of the remote site at the monitoring site and all the signals from the other sites are transmitted on a time-sharing basis through the remaining channels to reproduce frame repetition images. The assignment of the channels is determined by the order (priority) of codes included in an instruction signal from an instruction signal transmitting unit at the monitoring site. An operator can select the order (priority) of the codes.


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