Home

Primary Examiner: Stewart, David L.
Assistant Examiner:
Attorney: Gregg, Hendricson, Caplan & Becker

Next ten patents ordered by date:

Bidirectional communication system for electrical power networks
Control device
Counter type remote control receiver including noise immunity system
Circuit arrangement for tuning and range or band switching of an RF resonant circuit
Tuner bandswitching system for a television tuning system
Signal width and width ratio determining apparatus
Frequency demodulator for a FSK data transmission system
Demodulators
Stabilized transistor amplifier
Noise reduction circuit

Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh

Title: Delta modulation system employing digital frame averaging

Abstract: A delta modulator produces a digital bit stream from an input analog waveform and applies same to bit-averaging circuitry dividing the bit stream into time-frame intervals and computing the average slope per frame. Each average time-frame slope value is transmitted over a communication system as a discrete digital signal and at a receiver each such signal is employed to set the gain of a multi-level integrator and thus incrementally reconstruct the original waveform.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Nance, W. Franklin (Orange, CA, US)
Surprenant, Ronald J. (Anaheim, CA, US)

Application Number: 559177
Filing Date: 1975-03-17
Publication_date: 1976-09-14
Assignee: NS Electronics (Fresno, CA); Lear Siegler, Inc. (Santa Monica, CA)
Primary Class(es): 375/248 341/126, 341/139, 341/141, 341/143, 370/465, 370/477
Other Classes:
US Patent Ref:

3878465

Apr, 1975

Stephenne

332/11.

Other Refs: Other References: IBM Technical Disclosure Bulletin, vol. 15, No. 11, Apr. 1973, by Johnson et al.