Multiplex broadcasting system

Details Multiplex broadcasting system Multiplex broadcasting system

1994-12-13

1997-07-15

Lee, Michael H.

Telecommunications

Interference signal transmission

455 62, 348 12, 348 10, H04N 7173

Patent

active

056492847

ABSTRACT:
The present invention provides a multiplex broadcasting system and a multiplex broadcast signal receiver for receiving multiplex broadcast signals. The multiplex broadcasting system composes second broadcast information of multi-frequency signals each of a combination of one tone in a first frequency group of audio bands unrelated with each other in articulation and one tone in a second frequency group of audio bands unrelated with each other in articulation, and multiplexes the second broadcast information and main broadcast audio signals. The multiplex broadcast signal receiver comprises decoding means for continuously monitoring the audio signal included in the received multiplex broadcast signal, detecting multi-frequency signals to identify the combination of the multi-frequency signals, receiving means for receiving the output of the decoding means as second broadcast information, and storage means for storing the second broadcast information. The stored second broadcast information is used automatically for accessing a two-way program involving the viewers.

REFERENCES:
patent: 4329684 (1982-05-01), Monteath et al.
patent: 4390901 (1983-06-01), Keiser
patent: 4488179 (1984-12-01), Kruger et al.
patent: 4635121 (1987-01-01), Hoffman et al.
patent: 4706121 (1987-11-01), Young
patent: 4815128 (1989-03-01), Malek
patent: 4847886 (1989-07-01), Chumley
patent: 5014125 (1991-05-01), Pocock et al.
patent: 5130792 (1992-07-01), Tindell et al.
patent: 5151789 (1992-09-01), Young
patent: 5191410 (1993-03-01), McCalley et al.
patent: 5236199 (1993-08-01), Thompson, Jr.
patent: 5262860 (1993-11-01), Fitzpatrick et al.
patent: 5267244 (1993-11-01), Messerschmitt et al.
patent: 5357276 (1994-10-01), Banker et al.
patent: 5438355 (1995-08-01), Palmer
patent: 5450490 (1995-09-01), Jensen et al.

Affiliated with

Also associated with

Rating

Multiplex broadcasting system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiplex broadcasting system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiplex broadcasting system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1501318