Title:
音声および画像圧縮の動的割当て
Document Type and Number:
Japanese Patent JP4118986
Kind Code:
B2
Abstract:
A communications system providing a means for dynamically controlling system performance during times when communications traffic substantially changes to prevent blocking service while maintaining communications quality. The communications system provides such dynamic control for voice and/or video communications. For example, a voice communications system according to the present invention provides a means for increasing the effective voice capacity during times of increased voice traffic in a given service area, and decreasing the effective voice capacity during time of decreased voice traffic, wherein the decrease in the effective voice capacity provides an increase in voice quality. In one illustrative embodiment, when the voice traffic increases to a given threshold level, the system implements speech compression on selected channels to increase the effective capacity to that service area. In another embodiment, the system combines two compressed channel into one to increase the effective capacity even further.
Inventors:
Joel A. Javit
Application Number:
JP30323397A
Publication Date:
July 16, 2008
Filing Date:
November 06, 1997
Export Citation:
Assignee:
AT&T CORP.
International Classes:
H04B1/66; H04N7/26; H04J3/17; H04L12/56; H04L29/06; H04N1/41; H04N7/08; H04N7/081
Domestic Patent References:
| JP8293876A | ||||
| JP4077150A |
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Asahi Shinmitsu
Koji Yoshizawa
Nobuaki Kato
Asahi Shinmitsu
Koji Yoshizawa