Compact liquid crystal television receiver having information memory

• US 4,779,138 A
• Filed: 11/20/1986
• Issued: 10/18/1988
• Est. Priority Date: 11/27/1985
• Status: Expired due to Term

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Nomura, Yoshio, Nakano, Shunji, Tsukamoto, Akihiro
• Primary Examiner(s): Britton, Howard W.
• Assistant Examiner(s): Peng, John K.
• Application Number:
  US06/933,086
• Time in Patent Office: 698 Days
• Field of Search: 358/236, 358/189, 358/254, 358/102, 358/142, 364/705, 369/10, 455/345, 455/347, 273/148 B, 273/DIG. 28, 434/308, 434/179
• US Class Current: 348/790
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence

Abstract

In a compact liquid crystal television receiver having an information memory, map information, train time table information, or telephone directory information is prestored in the information memory, and is read out therefrom as needed. The readout information data is displayed on a screen, instead of a television image. In the case, window display can be used. The information memory is an IC card, and a still image audio or characters by character broadcasting can be recorded or reproduced.

Claims

1. A compact liquid crystal television receiver having an information memory, comprising:

television linear circuit means for receiving a television wave to produce video and audio signals;

A/D converting means for sampling the video signal from said television linear circuit means and for converting the video signal into digital video data;

memory means for storing information data;

key input means including;

a mode switch for selecting one of a television display mode and an information display mode,

area designating means for reading out information data from part of a storage area of said memory means and designating a display area for displaying an image, and

item data input means;

liquid crystal display means for displaying an image;

liquid crystal driving means, coupled to said A/D converting means and to said liquid crystal display means, for receiving digital video data output from said A/D converting means and information data output from said memory means and for display a television image and the information data on said liquid crystal display means;

control means coupled to said key input means and to said liquid crystal driving means, and in an information display mode for reading out the information data stored in a display area designating by said area designating means, for supplying the readout information data to said liquid crystal driving means, and for causing said liquid crystal display means to display the readout information data;

said control means further comprising an item data memory means for storing a table representing a one-to-one correspondence between display addresses of said memory means and predetermined item information, said item data memory means including;

means for searching a desired one of the display addresses in said item data memory to read out the desired display address, the desired display address corresponding to item information when item data is input upon operation of said item data input means, and

means for reading out information data from a corresponding memory area in said memory means in response to the desired display address to drive said liquid crystal driving means, thereby causing said liquid crystal display means to display an image; and

a case for accommodating said television linear circuit means, said A/D converting means, said memory means, said key input means, said liquid crystal display means, said liquid crystal driving means, and said control means.

2. A receiver according to claim 1, wherein said case comprises a memory mounting portion, and said memory means is detachably mounted in said memory mounting portion.

3. A receiver according to claim 1, wherein said memory means includes means for storing map information.

4. A receiver according to claim 1, wherein said memory means includes means for storing train time table information.

5. A receiver according to claim 1, wherein said memory means includes means for storing telephone directory information.

6. A receiver according to claim 1, wherein said television linear circuit includes television receiving means for receiving a character broadcast program (teletext).

7. A receiver according to claim 2, wherein said memory means comprises an IC card.

8. A receiver according to claim 7, wherein said IC card includes means for storing one-frame digital video data output from said A/D converting means.

9. A receiver according to claim 7, wherein said IC card includes means for storing an audio signal of a predetermined period of time output from said television linear circuit.

10. A compact liquid crystal television receiver having an information memory, comprising:

television linear circuit means for receiving a television wave to produce video and audio signals;

A/D converting means for sampling the video signal from said television linear circuit means and for converting the video signal into digital video data;

said television linear circuit means comprising a color television linear circuit for outputting an RGB signal, said A/D converting means including means for converting said RGB signal in units of color components to produce digital red data, digital green data, and digital blue data;

memory means for storing information data, said memory means comprising a plurality of IC cards for respectively storing said digital red data, said digital green data, and said digital blue data output from said A/D converting means;

key input means including a mode switch for selecting one of a television display mode and an information display mode;

liquid crystal display means for displaying an image;

liquid crystal driving means, coupled to said A/D converting means and to said liquid crystal display means, for receiving digital video data output from said A/D converting means and information data output from said memory means and for displaying a television image and the information data on said liquid crystal display means;

control means coupled to said key input means and to said liquid crystal driving means, and in an information data, for supplying the readout information data to said liquid crystal driving means, and for causing said liquid crystal display means to display the readout information data; and

a case for accommodating said television linear circuit means, said A/D converting means, said memory means, said key input means, said liquid crystal display means, said liquid crystal display means, and said control means.

11. A compact liquid crystal television receiver having an information memory, comprising:

television linear circuit means for receiving a television wave to produce video and audio signals;

A/D converting means for sampling the video signal from said television linear circuit means and converting the video signal into digital video data;

said A/D converting means including means for sampling a video signal output from said television linear circuit N times per horizontal scanning line to convert the video signal into digital video data;

memory means for storing information data, said memory means comprising a plurality of IC cards for storing N pieces of said digital video data per scanning line by a plurality of cycles;

key input means including a mode switch for selecting one of a television display mode and an information display mode;

liquid crystal display means for displaying an image;

liquid crystal driving means, coupled to said A/D converting means and to said liquid crystal display means, for receiving digital video data output from said A/D converting means and information data output from said memory means and for displaying a television image and the information data on said liquid crystal display means;

control means coupled to said key input means and to said liquid crystal driving means, and in an information display mode for reading out the information data, for supplying the readout information data to said liquid crystal driving means, and for causing said liquid crystal display means to display the readout information data; and

a case for accommodating said television linear circuit means, said A/D converting means, said memory means, said key input means, said liquid crystal display means, said liquid crystal driving means, and said control means.

12. A compact liquid crystal television receiver having an information memory, comprising:

television linear circuit means for receiving a television wave to produce video and audio signals;

A/D converting means for sampling the video signal from said television linear circuit means and converting the video signal into digital video data, said A/D converting means including means for converting a video signal output from said television linear circuit into gray scale data of A bits per dot;

memory means for storing information data;

key input means including a mode switch for selecting one of a television display mode and an information display mode;

liquid crystal display means for displaying an image;

liquid crystal driving means, coupled to said A/D converting means and to said liquid crystal display means, for receiving digital video data output from said A/D converting means and information data output from said memory means and for displaying a television image and the information data on said liquid crystal display means, said liquid crystal driving means including means for causing said liquid crystal display means to display an image, from data of which is M vertical dots×

N horizontal dots×

the A bits;

said memory means comprising a plurality of IC cards for storing the gray scale data of said A bits output from said A/D converting means by a plurality of cycles, digital video data of M dots×

N dots×

A'"'"' bits (where A'"'"'<

A) being stored in different IC cards in each cycle;

control means coupled to said key input means and to said liquid crystal driving means, and in an information display mode for reading out the information data, for supplying the readout information data to said liquid crystal driving means, and for causing said liquid crystal display means to display the readout information data; and

a case for accommodating said television linear circuit means, said A/D converting means, said memory means, said key input means, said liquid crystal display means, said liquid crystal driving means, and said control means.

13. A compact liquid crystal television receiver having an information memory, comprising:

television linear circuit means for receiving a television wave to produce video and audio signals;

A/D converting means for sampling the video signal from said television linear circuit means and for converting the video signal into digital video data;

memory means for storing data;

storing means, coupled to said A/D converting means for storing a plurality of divided-out data in said memory means said divided-out data comprising a portion of said digital video data;

key input means including a mode switch for selecting one of a television display mode and an information display mode;

liquid crystal display means for displaying an image;

liquid crystal driving means, coupled to said A/D converting means and to said liquid crystal display means, for receiving digital video data output from said A/D converting means and data output from said memory means and for displaying a television image and the data on said liquid crystal display means;

control means coupled to said key input means and to said liquid crystal driving means, and in an information display mode for reading out the data stored in said memory means, for supplying the readout data to said liquid crystal driving means, and for causing said liquid crystal display means to display the readout data; and

a case for accommodating said television linear circuit means, said A/D converting means, said memory means, said key input means, said liquid crystal display means, said liquid crystal driving means, and said control means.