Record medium erasing device with variable control in accordance with power supply characteristics

• US 6,128,040 A
• Filed: 09/17/1998
• Issued: 10/03/2000
• Est. Priority Date: 02/12/1988
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Maeda, Masaya, Shinbori, Kenichi, Sakaegi, Yuji
• Primary Examiner(s): Garber, Wendy
• Assistant Examiner(s): Vu, Ngoc-Yen, VU, NGOC YEN T
• Application Number:
  US09/156,170
• Time in Patent Office: 747 Days
• Field of Search: 360/69, 369/47, 369/54, 369/116, 386/1.8, 386/46, 386/69, 386/70, 348/207, 348/222, 348/372, 348/373, 348/374
• US Class Current: 348/372
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: G11B 33/121 the apparatus comprising a single recording/reproducing device
• CPC Class Codes: G11B 33/122 Arrangements for providing electrical connections, e.g. connectors, cables, switches
• CPC Class Codes: H02J 1/14 Balancing the load in a network
• CPC Class Codes: H02J 7/00043 using switches, contacts or markings, e.g. optical, magnetic or barcode
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: H02J 9/005 using a power saving mode for copiers G03G15/5004
• CPC Class Codes: H02J 9/061 for DC powered loads

Abstract

An electronic apparatus capable of using power sources of different kinds each having a different characteristic is provided with an apparatus for controlling the operating mode of the electronic apparatus on the basis of the discrimination result provided by a discriminating switch, the discriminating switch being provided for discriminating the kind of a power source by means of the configuration of the electrodes of the power source. The electrodes of each kind of power sources is formed to have a different configuration. A recording or reproducing apparatus is also disclosed which controls the execution or non-execution of erasing operation in accordance with the result of discrimination of the kinds of power sources. In addition, a recording or reproducing apparatus is disclosed which is provided with an auto shut-off circuit for automatically shutting off the operation of a power source if an inoperative state continues for a predetermined time or more and which controls, in accordance with the result of discrimination of the kind of a power source, a set time period which elapses until an auto shut-off operation is started.

Claims

1. An electronic apparatus, comprising:

(A) reproducing means for reproducing an image recorded on a recording medium;

(B) selection means for selecting the image;

(C) a timer for counting lapse of a predetermined time; and

(D) control means for controlling the timer to clear when image selection operation of the selection means is performed during the counting operation of the predetermined time by the timer, and controlling a power source of the timer to automatically turn off when the lapse of the predetermined time is counted by the timer without the selection operation by the selection means.

2. An electronic apparatus according to claim 1, wherein the selection means comprises an upswitch and a downswitch.

3. An electronic apparatus according to claim 2, further comprising image pickup means and recording means for recording the image picked up by the pickup means on the recording medium.

4. An electronic apparatus according to claim 1, further comprising image pickup means and recording means for recording the image picked up by the pickup means on the recording medium.