Use of transmitter assigned phantom channel numbers for data services

• US 5,495,295 A
• Filed: 06/01/1994
• Issued: 02/27/1996
• Est. Priority Date: 06/01/1994
• Status: Expired due to Term

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: Zenith Electronics Corporation (LG Corporation)
• Inventors: Long, Michael E.
• Primary Examiner(s): Harvey, David E.
• Application Number:
  US08/252,039
• Time in Patent Office: 636 Days
• Field of Search: 348/731, 348/11, 348/10, 348/468, 348/385, 348/386, 348/387, 348/553, 348/563, 348/569, 348/570, 348/725, 370/50, 370/73
• US Class Current: 348/563
• CPC Class Codes: H04N 21/4112 having fewer capabilities than the client, e.g. thin client having less processing power or no tuning capabilities
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/488 Data services, e.g. news ticker systems specially adapted for using meteorological information in broadcast systems H04H60/71
• CPC Class Codes: H04N 5/50 Tuning indicators; Automatic tuning control
• CPC Class Codes: H04N 7/002 Special television systems not provided for by H04N7/007 - H04N7/18 still pictures via a television channel H04N1/00098
• 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 7/0887 for the transmission of programme or channel identifying signals

Abstract

A video communication system includes a microprocessor for operating a tuner to select desired television channels in response to the input of corresponding channel numbers. A video data application program is Stored in a memory that is accessible to the microprocessor for providing an on-screen display generator with the video data program information for display. The microprocessor identifies the video data application program by a phantom channel number and when that channel number is input by the user, the microprocessor decodes it and accesses the memory location of the video data application program and activates the on-screen display generator.

Claims

1. A method of operating a video communication system comprising:

at a transmitter;

assigning channel numbers to broadcast television channel signals;

assigning a phantom channel number to a preselected video data program;

at a receiver;

using a microprocessor to select the broadcast television channel signals in;

response to the input of the channel numbers corresponding to the broadcast television channel signals;

using the microprocessor to access a memory containing the preselected video data program in response to the input of the phantom channel number identifying the video data program; and

operating an on-screen display generator to generate a video display corresponding to the accessed preselected video data program in the memory.

2. The method of operating a video communication system comprising:

at a transmitter;

assigning channel numbers to broadcast television channel signals;

assigning a phantom channel number to a preselected video data program;

at a receiver;

tuning the broadcast television channel signals in response to the input of the channel numbers corresponding to the broadcast television channel signals;

accessing a memory containing the preselected video data program in response to the input of the phantom channel number identifying the preselected video data program; and

generating a video display corresponding to the accessed preselected video data program in the memory.

3. The method of claim 2, further including a microprocessor means for controlling the tuning and the accessing;

and

using the microprocessor means to decode the phantom channel number identifying the preselected video data program.

4. The method of claim 3, further comprising downloading the video data program from the transmitter to the memory in the receiver.

5. In combination:

a television tuner;

a microprocessor for controlling tuning of said television tuner to broadcast television channel signals in response to inputs of channel numbers;

a memory accessible to said microprocessor;

a video data application program identified in said memory by a transmitter assigned phantom channel number different from said channel numbers;

on-screen displays means for developing a video display from said video data application program; and

decoding means in said microprocessor responsive to the input of said transmitter assigned phantom channel number for decoding said transmitter assigned phantom channel number and accessing said memory to cause said on-screen display to display the output of said video data application program.

6. The combination of claim 5 wherein said video data application program is downloaded to said microprocessor for storage in said memory.

7. The combination of claim 6, further including;

a data receiver coupled to said microprocessor for receiving said downloaded video data application program.