U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Cyclic video region transmission for videoconferencing systems

Patent 4935953 Issued on June 19, 1990. Estimated Expiration Date: Icon_subject April 27, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Reduced bandwidth video transmission
Patent #: 4494144
Issued on: 01/15/1985
Inventor: Brown

Apparatus and method of smoothing MAPS compressed image data
Patent #: 4598372
Issued on: 07/01/1986
Inventor: McRoberts

Omission and subsequent estimation of zero sequency coefficients of transformed digitized images to facilitate data compression
Patent #: 4633296
Issued on: 12/30/1986
Inventor: Cham ,   et al.

Video signal compressing and coding apparatus
Patent #: 4656511
Issued on: 04/07/1987
Inventor: Koga

Workstation for interfacing with a video conferencing network
Patent #: 4686698
Issued on: 08/11/1987
Inventor: Tompkins ,   et al.

Digital video compression system with variable digital filter Patent #: 4695883
Issued on: 09/22/1987
Inventor: Chandler ,   et al.

Inventors

Application

No. 344180 filed on 04/27/1989

US Classes:

348/14.15Field or frame difference (e.g., moving frame)

Examiners

Primary: George, Keith E.

Attorney, Agent or Firm

Foreign Patent References

  • 8604757 WO. 08/13/1986

International Classes

H04M 011/00
H04N 007/12
H04N 007/14

Abstract

A system for full motion videoconferencing. The total video image space is broken down into regions of such position and size relative to the space that the image data in predetermined sections of the regions is overlapped during the cyclic transmission thereof. The reception and display of the superimposed regions provides a significant increase in the perceived transmission rate in the overlapped sections, rendering those sections suitable for full motion effects.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$16.95more info
 
Sign InRegister
Username  
Password   
forgot password?