Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1997-02-24
1999-03-02
Kuntz, Curtis
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379 9329, 370433, 370493, 375222, H04M 1100
Patent
active
058781200
ABSTRACT:
A micro-controller having multiple operating modes, including an idle mode, an analog voice mode, a digital data mode, and a simultaneous voice and data (SVD) mode, is provided to a DCE designed to support multi-modal voice and/or data calls over a single analog-loop telephone line. The micro-controller further contains control logic for establishing multiple logical connections and voice as well as data transmission protocols over these logical connections with another DCE, when switching from the analog voice mode to the SVD mode, and for multiplexing voice and data transmissions over these logical connections. The control logic transmits voice over a logical voice connection in nominally fixed intervals. A non-voice transmission, i.e. data or information to be exchanged, can be suspended in favor of transmitting a voice transmission. During the suspension, a special character (e.g., escape) is transmitted in conjunction with a length preceding the voice transmission. After the voice transmission is complete, the data transmission is continued. By suspending (rather than ending and then restarting) the non-voice transmission, a large amount of "framing bits" are effectively eliminated and the bandwidth efficiency of the multiplexed transmission is increased. Effectively, voice information can be transmitted embedded within a data (e.g., non real time) transmission.
REFERENCES:
patent: 2974281 (1961-03-01), Feldman
patent: 4435804 (1984-03-01), Tan
patent: 4442540 (1984-04-01), Allen
patent: 4476559 (1984-10-01), Brolin et al.
patent: 4512013 (1985-04-01), Nash et al.
patent: 4644527 (1987-02-01), Anderson et al.
patent: 4715059 (1987-12-01), Cooper-Hart et al.
patent: 4757495 (1988-07-01), Decker et al.
patent: 4805208 (1989-02-01), Schwartz
patent: 4813040 (1989-03-01), Futato
patent: 4932047 (1990-06-01), Emmons et al.
patent: 4991197 (1991-02-01), Morris
patent: 5086453 (1992-02-01), Senoo et al.
patent: 5091877 (1992-02-01), Itoh et al.
patent: 5182762 (1993-01-01), Shirai et al.
patent: 5200962 (1993-04-01), Kao et al.
patent: 5250940 (1993-10-01), Valentaten et al.
patent: 5283638 (1994-02-01), Engberg et al.
patent: 5325423 (1994-06-01), Lewis
patent: 5359644 (1994-10-01), Tanaka et al.
patent: 5365576 (1994-11-01), Tsumura et al.
patent: 5428608 (1995-06-01), Freeman et al.
patent: 5440585 (1995-08-01), Partridge, III
patent: 5452289 (1995-09-01), Sharma et al.
patent: 5463616 (1995-10-01), Kruse et al.
patent: 5502727 (1996-03-01), Catanzaro et al.
Newton's Telecom Dictionary, 7th edition, Apr. 1994, p. 617, Harry Newton.
"User Deploys Date-Voice System" Network Applications, 1 page, Jeffrey Schwartz.
"VoiceView Officer Voice And Data Over Single Analog Line", Paul Stockford, Voice Processing Magazine, Jul. 1992, pp. 30-31, Paul Stockford.
Mitel Corporation Data Sheet for "Data Over Voice Modem", Part#MT8840, Issue 3, Dec. 1987.
Intel Corporation
Kuntz Curtis
Palan Stephen W.
LandOfFree
Mechanism and method for multiplexing voice and data over a sign does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mechanism and method for multiplexing voice and data over a sign, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanism and method for multiplexing voice and data over a sign will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-429812