Title:
PHYSICAL AMOUNT ADJUSTMENT CONTROLLING SYSTEM
Document Type and Number:
Japanese Patent JPS5734203
Kind Code:
A
Abstract:
A control system for adjusting a physical value, e.g. the resonance frequency of an oscillator comprising a bank of keys to provide the physical value as a digital word A, a microprocessor to convert the word A to a digital word B, a D/A converter to convert the word B to a voltage to control an electronic adjusting component of the oscillator, e.g. a varactor diode, and a measuring device to measure the output of the oscillator and provide a digital word C for coupling to the microprocessor. The microprocessor compares the word B with the word C and provides a correcting digital word DELTA B which is added to the word B for application to the oscillator through the D/A converter. This process is continued until the word B is equal to the word C.
Inventors:
HAINTSU KUREE
Application Number:
JP9680081A
Publication Date:
February 24, 1982
Filing Date:
June 24, 1981
Export Citation:
Assignee:
ITT
International Classes:
G05B15/02; H03J7/06; H03M1/00; (IPC1-7): G05B15/02