【発明の名称】周波数安定2状態変調システム

Title:

【発明の名称】周波数安定2状態変調システム

Document Type and Number:

Japanese Patent JP2739904

Kind Code:

B2

Abstract:

A two-state modulation system includes a hysteretic comparator (31, 36) with variable thresholds, a two-state processor (11) and an integrating element (16). A summing circuit (23) combines the signal input (S1), a delay compensating signal feedback input (S9) and a feedback (S8) input from the integrating element (16) at the output of the two-state processor. The hysteretic comparator receives a hysteresis control signal (S12) that varies the threshold. The hysteresis control signal may be provided by analog switches (91, 92) switched by the switching signal to provide the switched two-state levels to a low pass filter. Rectifying circuitry may also be used for supplying the hysteresis control signal. Limiters and compressors may be connected to the input with the limiter limiting levels tracking the two-state levels, and the compression proportional to the switching frequency.

Inventors:

Thomas a flow

Application Number:

JP15685985A

Publication Date:

April 15, 1998

Filing Date:

July 16, 1985

Export Citation:

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