Method for automatically turning on a set turned off due to power line noise

• US 5,905,544 A
• Filed: 09/28/1993
• Issued: 05/18/1999
• Est. Priority Date: 09/28/1992
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Sang-su
• Primary Examiner(s): HSIA, SHERRIE Y
• Application Number:
  US08/127,519
• Time in Patent Office: 2,058 Days
• Field of Search: 358/188, 358/190, 358/903, 358/165
• US Class Current: 348/730
• CPC Class Codes: H04N 5/63 Generation or supply of power specially adapted for television receivers

Abstract

In a microprocessor controlled television set, a method for automatically turning on the set which was turned off due to power line noise includes steps for determining when the set is turned off due to noise, storing first data indicative of a prior-to-turn-off state of the set when the set is turned off due to noise and comparing the first data with second data indicative of a turned-off state when noise is removed. As a result of the comparison step, when the fist and second data are the same, the set is automatically turned on. However, if the first and second data are different from one another, the set is re-initialized using the first data. According to one aspect of the invention, when the set is re-initialized, the set must be turned on using a key manipulation. Thus, the user does not need to turn on a set manually when the set has been turned off due to power line noise.

Claims

1. A method for automatically turning on a set turned off due to noise, said method comprising the steps of:

(a) determining if a set is turned off due to noise;

(b) storing first data representative of a prior-to-turn-off state, when the set is turned off due to noise; and

(c) comparing said first data with second data representing a turned-off state if noise is removed to produce a compared result, and if the compared result is the same, automatically turning on the set, while if the compared result is not the same, initializing said first data, and then awaiting a key manipulation.

2. A method for automatically turning on a set turned off due to noise as claimed in claim 1, wherein said determining step (a) further comprises the step of recognizing that the set is turned off due to noise if an interrupt signal generated from a power interrupt generating portion is applied.

3. A method for automatically turning on a set turned off due to noise as claimed in claim 1, wherein said storing step (b) further comprises the step of disabling a power controlling portion and cutting off a power supply by outputting a reset signal from a reset portion, if the set is turned off due to noise.

4. A method for automatically turning on a set turned off due to noise as claimed in claim 1, wherein said comparing step (c) further comprises the step of supplying power by enabling a power-controlling portion to resume operation of the same state as the prior-to-turn-off state if the compared result is the same, and initializing said first data and awaiting a key manipulation if the compared result is not the same.

5. A method of automatically turning on an electronic device which has been turned off due to noise, the method comprising the steps of:

determining if the electronic device has been turned off due to noise;

storing, if it is determined that the electronic device has been turned off, first sum data representing data information of a prior-to-turn-off state;

storing second sum data representing data information of a turned-off state;

comparing said first and second sum data, and if said first and second sum data are the same, automatically turning on the electronic device, and if said first and second sum data are not the same, then initializing the second sum data.