JPS5627585A - Automatic tracking unit - Google Patents

Automatic tracking unit

Info

Publication number
JPS5627585A
JPS5627585A JP10337079A JP10337079A JPS5627585A JP S5627585 A JPS5627585 A JP S5627585A JP 10337079 A JP10337079 A JP 10337079A JP 10337079 A JP10337079 A JP 10337079A JP S5627585 A JPS5627585 A JP S5627585A
Authority
JP
Japan
Prior art keywords
zoom lens
tracking
electric zoom
basis
difference
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.)
Pending
Application number
JP10337079A
Other languages
Japanese (ja)
Inventor
Mitsuru Kiyota
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10337079A priority Critical patent/JPS5627585A/en
Publication of JPS5627585A publication Critical patent/JPS5627585A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G01S3/7864—T.V. type tracking systems

Abstract

PURPOSE:To make it possible to track stably even an object that appears to be variable in size, by driving an electric zoom lens on the basis of a difference between an integrated tracking gate signal and reference value. CONSTITUTION:AGC part 8 integrates the output signal of tracking gate generation part 3 by a fixed time constant and compares the integral value to reference voltage Vref to drive an electric zoom lens on the basis of the difference. As the apparent size of an object increases, the focal length of the electric zoom lens is shortened to decrease the apparent size of the object and a constant error signal regarding the gravity center point of the object and the tracking point is outputted by error detection part 6, so that the gain of the tracking loop is made constant.
JP10337079A 1979-08-14 1979-08-14 Automatic tracking unit Pending JPS5627585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10337079A JPS5627585A (en) 1979-08-14 1979-08-14 Automatic tracking unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10337079A JPS5627585A (en) 1979-08-14 1979-08-14 Automatic tracking unit

Publications (1)

Publication Number Publication Date
JPS5627585A true JPS5627585A (en) 1981-03-17

Family

ID=14352215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10337079A Pending JPS5627585A (en) 1979-08-14 1979-08-14 Automatic tracking unit

Country Status (1)

Country Link
JP (1) JPS5627585A (en)

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