Telecommunication system with frame selected continuous audio signals

• US 4,780,757 A
• Filed: 03/09/1988
• Issued: 10/25/1988
• Est. Priority Date: 04/30/1987
• Status: Expired due to Term

• Current Assignee: GTE Main Street Incorporated (Verizon Communications Inc.)
• Original Assignee: GTE Government Systems Corporation (General Dynamics Corporation)
• Inventors: Bryer, Steven M., Purple, William C., Beriont, Walter J.
• Primary Examiner(s): George, Keith E.
• Application Number:
  US07/166,064
• Time in Patent Office: 230 Days
• Field of Search: 358/85, 358/86, 358/143, 358/144, 358/145, 379/53, 455/4
• US Class Current: 725/144
• CPC Class Codes: H04N 1/00098 via a television channel, e.g. for a series of still pictures with or without sound
• CPC Class Codes: H04N 7/025 Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame transmission of digital non-picture data during the vertical blanking interval only H04N7/088
• CPC Class Codes: H04N 7/035 Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
• CPC Class Codes: H04N 7/088 the inserted signal being digital

Abstract

A telecommunication system has a facility and an addressable terminal coupled through a transmission medium. The facility includes means for providing addressed video frames containing information corresponding to still images and for providing addressed audio frames containing information corresponding to audio bursts. There is also provided for non-addressed signals containing information corresponding to at least two channels of continuous audio. A selection code is inserted in one or more of the frames. The addressed video and audio frames and non-addressed signals are coupled to the transmission medium to the addressable terminal. The terminal has means for detecting said addressed video frames, addressed audio frames, and non-addressed signals. Circuits select video frames and audio frames in response to their corresponding addresses. One of said continuous audio channels is selected in response to said selection code.

Claims

1. A telecommunication system for transmitting video and plural audio information on a transmission medium comprised of a facility and an addressable terminal,

wherein said facility includes:

means for providing addressed video frames containing information corresponding to still images;

means for providing non-addressed signals containing information corresponding to at least two continuous audio channels;

means for inserting a continuous audio channel selection code in one or more of said frames;

means to couple said addressed video frames, and non-addressed signals to said transmission medium,

wherein said addressable terminal includes;

means for detecting said addressed video frames, and non-addressed signals on said transmission medium;

means for selecting video frames in response to their corresponding addresses;

means for selecting one of said continuous audio channels contained by said non-addressed signals in response to said continuous audio channel selection code;

means for storing and playing still images from said video frames; and

means for playing the selected continuous audio channel concurrently with said still images.

2. The telecommunication system of claim 1 wherein said continuous audio channel selection code is inserted into each frame.

3. A telecommunication system for transmitting video and plural audio information on a transmission medium comprised of a facility and an addressable terminal,

wherein said facility includes:

means for providing addressed video frames containing information corresponding to still images;

means for providing addressed audio frames containing information corresponding to audio bursts;

means for providing non-addressed signals containing information corresponding to at least two continuous audio channels;

means for inserting a continuous audio channel selection code in one or more of said frames;

means to couple said addressed video frames, said addressed audio frames, and non-addressed signals to said transmission medium,

wherein said addressable terminal includes;

means for detecting said addressed video frames, addressed audio frames, and non-addressed signals on said transmission medium;

means for selecting video frames and audio frames in response to their corresponding addresses;

means for selecting one of said continuous audio channels contained by said non-addressed signals in response to said continuous audio channel selection code;

means for storing and playing still images from said video frames; and

means for playing the selected continuous audio channel concurrently with said still images.

4. The telecommunication system of claim 3 wherein said continuous audio channel selection code is inserted into each frame.