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.)
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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
Application filed by Texas Instruments IncfiledCriticalTexas Instruments Inc
Publication of FR2448174A1publicationCriticalpatent/FR2448174A1/fr
Application grantedgrantedCritical
Publication of FR2448174B1publicationCriticalpatent/FR2448174B1/fr
H04M9/00—Arrangements for interconnection not involving centralised switching
H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
G—PHYSICS
G08—SIGNALLING
G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
G08C19/00—Electric signal transmission systems
G08C19/16—Electric signal transmission systems in which transmission is by pulses
G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code
G—PHYSICS
G08—SIGNALLING
G08G—TRAFFIC CONTROL SYSTEMS
G08G1/00—Traffic control systems for road vehicles
G08G1/07—Controlling traffic signals
G08G1/081—Plural intersections under common control
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Communication Control
(AREA)
Selective Calling Equipment
(AREA)
Small-Scale Networks
(AREA)
Traffic Control Systems
(AREA)
Time-Division Multiplex Systems
(AREA)
FR8002059A1979-01-311980-01-31Recepteur de donnees programmable a fonctions multiples
GrantedFR2448174A1
(fr)