Control of scanning velocity modulation
AssigneeThomson Licensing
InventorGene Karl Sendelweck
Life of this patent
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Abstract
A scanning velocity modulation deflection signal generator comprises a variable conduction device coupled to said scanning velocity modulation deflection signal generator. In a first condition the variable conduction device provides a feedback path to control a scanning velocity modulation deflection signal, and in a second condition the variable conduction device interrupts the feedback path and inhibits generation of the scanning velocity modulation deflection signal.
Claims12
A generator of a scanning velocity modulation deflection signal, comprising:
- a variable conduction device comprising a transistor, said transistor coupled to said generator and having a first input responsive to a negative feedback signal, and said transistor having a second input responsive to a control signal;
- in a first condition said transistor providing a path for receiving said negative feedback signal at said first input for controlling said scanning velocity modulation deflection signal in magnitude;
- and,
- in a second condition said transistor interrupting said path and substantially inhibiting generation of said scanning velocity modulation deflection signal in response to said second input receiving said control signal.
A generator of a scanning velocity modulation deflection signal, comprising:
- a variable conduction device consisting of a single transistor, said transistor having a first terminal responsive to a scanning velocity modulation feedback signal, and a second terminal responsive to a control signal;
- in a first condition said transistor providing a feedback path for said feedback signal for controlling a magnitude of said scanning velocity modulation deflection signal;
- and,
- in a second condition said transistor interrupting said feedback path and substantially inhibiting generation of said scanning velocity modulation deflection signal.
A scanning velocity modulation deflection signal generator, comprising:
- a transistor coupled to said scanning velocity modulation deflection signal generator and operational as a common base amplifier for a feedback signal coupled for controlling a magnitude of said scanning velocity modulation deflection signal, and said transistor being operational as a common emitter amplifier for interrupting said feedback signal and substantially inhibiting generation of said scanning velocity modulation deflection signal.
Dependencies are inferred from the claim text.