Digital still camera

• US 6,392,697 B1
• Filed: 02/19/1998
• Issued: 05/21/2002
• Est. Priority Date: 06/30/1997
• Status: Expired due to Term

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Techwin Corporation (Hanwha Vision Company Limited)
• Inventors: Tanaka, Masahide, Ito, Katsutoshi, Seo, In-seok
• Primary Examiner(s): HO, TUAN V
• Application Number:
  US09/026,167
• Time in Patent Office: 1,552 Days
• Field of Search: H04/N.5225, 348/207, 348/211, 348/220, 348/222, 348/231, 348/232, 348/239, 348/373, 348/374, 348/375, 348/384, 348/390, 348/405.1, 348/14.01, 348/14.02, 348/14.04, 348/14.05, 348/14.12, 370/260-263, 345/3.3, 345/3.4, 455/550, 455/556, 455/566, 455/575, 375/240.21
• US Class Current: 348/220.1
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04N 1/00307 with a mobile telephone apparatus constructional features of portable telephone sets H04M1/0202; mobile radio systems H04W84/00
• CPC Class Codes: H04N 1/33369 Storage of mode or retrieval of prestored mode
• CPC Class Codes: H04N 19/00 Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
• CPC Class Codes: H04N 2201/0015 Control of image communication with the connected apparatus, e.g. signalling capability
• CPC Class Codes: H04N 2201/0068 Converting from still picture data
• CPC Class Codes: H04N 2201/33357 Compression mode

Abstract

A digital still camera capable of telecommunication includes a converting device which converts an optical image into a digital electronic signal indicative of a still image, a memory which stores at least one specific telephone number, a modifying unit which modifies the digital electronic signal indicative of the still image into an electronic signal containing a still image signal generated in accordance with a wireless telephone system, a reducing device which reduces a number of pixels of the still image converted by the converting device to form a still image of fewer pixels contained in the electronic signal, a transmitter which transmits the electronic signal containing the still image signal modified by the modifying unit, and a controller which inhibits the reducing device when the telephone number designating the remote device coincides with the specific telephone number, whereby the reducing device forms a still image signal contained in the electronic signal without reducing the number of pixels of the still image converted by the converting device.

Claims

1. A digital still camera, comprising:

a device which converts an optical image into a digital electronic signal indicative of a still image;

a memory which stores at least one telephone number;

a modifying unit which modifies said digital electronic signal indicative of the still image into an electronic signal containing a still image signal in accordance with a wireless telephone system;

a device which reduces the number of pixels of the still image converted by the converting device to form a still image having fewer pixels in the electronic signal;

a transmitter which transmits an electromagnetic signal containing the still image signal modified by said modifying unit; and

a device which inhibits the reducing device when the telephone number designating a remote device matches a specific telephone number, whereby said reducing device generates an electronic signal containing a still image without reducing the number of pixels of the still image converted by the converting device.

2. A digital still camera in accordance with claim 1, wherein the memory stores a plurality of telephone numbers, the telephone numbers being classified into a first type corresponding to a remote device capable of receiving a still image signal having a first number of pixels, and a second type corresponding to a remote device capable of receiving a still image having a second number of pixels, wherein the first number of pixels is less than the second number of pixels.

3. A digital still camera in accordance with claim 2, wherein said controller renders said reducing device operative when said telephone number designating the remote device matches a telephone number of the first type, whereby said modifying unit generates an electronic signal containing a still image signal of fewer pixels.

4. A digital still camera in accordance with claim 2, wherein said controller renders said reducing device inoperative when said telephone number designating a remote device does not match any telephone numbers of said first or second type, whereby said modifying unit generates an electronic signal without reducing the number of pixels of the still image converted by the converting device.

5. A digital still camera in accordance with claim 2, wherein said reducing device further shortens the transmission time for one frame of the still image signal by reducing the number of pixels.

6. A digital still camera, comprising:

a converting device which converts an optical image into a digital electronic signal indicative of a still image having a first number of pixels;

a memory which stores at least one specific telephone number corresponding to a remote device capable of receiving a still image signal having a second number of pixels;

a modifying unit which modifies the digital electronic signal indicative of the still image into an electromagnetic signal containing a still image signal in accordance with a wireless telephone system;

a reducing device which reduces the number of pixels of the still image converted by the converting device to form an electromagnetic signal containing a still image with fewer pixels;

a transmitter which transmits the electromagnetic signal containing the still image signal modified by said modifying unit; and

a controller which inhibits the reducing device when said telephone number designating the remote device matches said specific telephone number, whereby the reducing device generates an electromagnetic signal containing a still image signal with fewer pixels, and wherein the second number of pixels is less than the first number of pixels.

7. A digital still camera, comprising:

a converting device which converts an optical image into a digital electronic signal indicative of a still image having a first number of pixels;

a memory which stores at least one specific telephone number corresponding to a remote device capable of receiving a still image signal having a second number of pixels;

a modifying unit which modifies the digital electronic signal indicative of the still image into an electromagnetic signal containing a still image signal in accordance with a wireless telephone system;

a reducing device which reduces the number of pixels of the still image converted by said converting device to form a still image of fewer pixels contained in the electromagnetic signal;

a transmitter which transmits the electromagnetic signal containing said still image signal modified by said modifying unit; and

a controller which inhibits the reducing device when the telephone number designating the remote device does not match said specific telephone number, whereby said reducing device generates an electromagnetic signal containing a still image without reducing the number of pixels of the still image converted by said converting device, and wherein the second number of pixels is less than the first number of pixels.