DATA PROCESSOR, PROGRAM UPDATING METHOD AND STORAGE MEDIUM

• US 20090195692A1
• Filed: 04/02/2009
• Published: 08/06/2009
• Est. Priority Date: 08/28/1998
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: ONO, KENICHIRO
• Granted Patent: US 9,407,972 B2
• Time in Patent Office: Days
• US Class Current: 348/553
• CPC Class Codes: G06F 11/1433 during software upgrading
• CPC Class Codes: H04N 21/818 OS software

Abstract

A data processor capable of preventing a system from starting up improperly due to incomplete program updating. The data processor receives, by way of an external interface, a program which is sent by communicating medium such as a broadcast wave or a telephone network from an external device and stores the received program into a memory B which is different from a memory A storing a program for the system when a version of the received program is newer than that of a program currently executed by the data processor, thereby starting up an MPU at the next time with the program stored in the memory B.

Claims

1. A broadcast receiving apparatus which has a storage unit for storing a program executing control of the broadcast receiving apparatus, comprising:

a receiving unit which receives a broadcast wave;

an acquiring unit which acquires notification information from the received broadcast wave, regarding a new program for executing the control of the broadcast receiving apparatus in place of the stored program; and

a control unit which controls the receiving unit according to the notification information so that the new program is acquired from the broadcast wave,

wherein the control unit determines whether or not a receiving level of the received broadcast wave meets a predetermined value, and when the receiving level does not meet the predetermined value, the control unit controls so as not to acquire the new program.

2. A broadcast receiving apparatus according to claim 1, further comprising:

an input unit which receives an instruction of operation from a user and which transfers the instruction of operation to the control unit,

wherein the control unit controls so that the instruction of operation is not received from the input unit while the new program is acquired.

3. A method of controlling a broadcast receiving apparatus which has a storage unit for storing a program executing control of the broadcast receiving apparatus, comprising the steps of:

receiving a broadcast wave by means of a receiving unit;

acquiring notification information from the received broadcast wave, regarding a new program for executing the control of the broadcast receiving apparatus in place of the stored program; and

controlling the receiving unit according to the notification information so that the new program is acquired from the broadcast wave,

wherein it is determined whether or not a receiving level of the received broadcast wave meets a predetermined value, and

wherein, when the receiving level does not meet the predetermined value, the new program is not acquired.

4. A method of controlling a broadcast receiving apparatus according to claim 3, further comprising the steps of:

receiving an instruction of operation from a user; and

transferring the instruction of operation to a control unit,

wherein it is controlled by the control unit so that the instruction of operation is not received while the new program is acquired.