Title:
TELEVISION MOTION DETECTION CIRCUIT
Document Type and Number:
Japanese Patent JPH03201893
Kind Code:
A
Abstract:
PURPOSE: To efficiently perform monitoring by generating an alarm output signal when a synchronizing input signal is received at the input of a shift register having a signal input connected to the output of an exclusive OR circuit, a clock input, and a plurality of outputs. CONSTITUTION: The output of an exclusive OR circuit 12 is supplied to a shift register 16 which accumulates a preset number of continuous motion indicating signals and, when a prescribed number of continuous motion indicting signals is accumulated, an alarm signal is generated. Since the register 16 is driven with a system clock, the register 16 is synchronized to the circuit 12. The alarm signal is generated by means of a plurality of input circuits 18 and the circuits 18 generate the final alarm signal upon receiving a required number of signals at their inputs. The timing of the alarm signal is also accurately synchronized to the system clock.
Inventors:
JIYON ESU UIROBII
Application Number:
JP32511590A
Publication Date:
September 03, 1991
Filing Date:
November 26, 1990
Export Citation:
Assignee:
BURLE TECHNOLOGIES
International Classes:
G08B13/194; H04N9/77; H04N11/04; H04N7/18; (IPC1-7): H04N7/18; H04N9/77; H04N11/04
Attorney, Agent or Firm:
Satoshi Shimizu (2 outside)