Electronic device, time correction method and time correction program thereof

• US 8,144,548 B2
• Filed: 09/30/2005
• Issued: 03/27/2012
• Est. Priority Date: 04/15/2005
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Gamo, Tatsuya, Sugimoto, Makoto, Kikuchi, Yoshiaki, Nakajima, Yuko, Nakano, Makoto
• Primary Examiner(s): Kayes, Sean
• Application Number:
  US11/239,399
• Publication Number:
  US 20060234671A1
• Time in Patent Office: 2,370 Days
• Field of Search: 368/47, 368/13
• US Class Current: 368/47
• CPC Class Codes: G04R 20/00 Setting the time according to the time information carried or implied by the radio signal
• CPC Class Codes: G04R 20/20 the radio signal being an AM/FM standard signal, e.g. RDS

Abstract

An electronic device corrects its device side time with a time correction information supplied from outside the device. The electronic device includes a reception section and a time correction section. The reception section receives the time correction information. The time correction section judges whether the information is received during any correction inhibiting periods of the device side time, then either discards the time correction information if it is received during the correction inhibiting periods, or corrects the device side time with the time correction information if it is received other than the correction inhibiting periods.

Claims

1. An electronic device that corrects its device side time with time correction information supplied from outside the device, comprising:

a reception section that receives the time correction information;

a time correction section that judges, when the reception section receives the time correction information, whether a correction inhibiting period is set or not, then either discards the time correction information if the correction inhibiting period is set, or corrects the device side time with the time correction information that the reception section receives if the correction inhibiting period is not set;

a memory section that stores application programs using the device side time; and

a control section that executes the application programs,

wherein each of the application programs sends starting notifications to the control section when the application programs start time correction process in response to receipt of the time correction information, and end notifications to the control section when the application programs end the time correction process, and the correction inhibiting period is set between a first notification of the starting notifications and a last notification of the end notifications.

2. A time correction method of an electronic device that corrects its device side time with time correction information supplied from outside the device, comprising:

receiving the time correction information;

executing application programs using the device side time, the application programs being stored in a memory section;

sending starting notifications by each of the application programs when the application programs start time correction process in response to receipt of the time correction information, and end notifications by each of the application programs when the application programs end the time correction process;

setting a correction inhibiting period between a first notification of the starting notifications and a last notification of the end notifications;

judging, when the time correction information is received, whether the correction inhibiting period is set or not; and

discarding the time correction information if the correction inhibiting period is set, or correcting the device side time with the received time correction information if the correction inhibiting period is not set.

3. A time correction program executed by a computer, the time correction program of an electronic device that corrects its device side time with time correction information supplied from outside the device, comprising:

receiving the time correction information;

executing application programs using the device side time, the application programs being stored in a memory section;

sending starting notifications by each of the application programs when the application programs start time correction process in response to receipt of the time correction information, and end notifications by each of the application programs when the application programs end the time correction process;

setting a correction inhibiting period between a first notification of the starting notifications and a last notification of the end notifications;

judging, when the time correction information is received, whether the correction inhibiting period is set or not; and

discarding the time correction information if the correction inhibiting period is set, or correcting the device side time with the received time correction information if the correction inhibiting period is not set.

4. A mobile terminal device that corrects its device side time with time correction information supplied from base stations, comprising:

a reception section that receives the time correction information;

a time correction section that judges, when the reception section receives the time correction information, whether a correction inhibiting period is set or not, then either discards the time correction information if the correction inhibiting period is set, or corrects the device side time with the time correction information that the reception section receives if the correction inhibiting period is not set;

a memory section that stores application programs using the device side time; and

a control section that executes the application programs,

wherein each of the application programs sends starting notifications to the control section when the application programs start time correction process in response to receipt of the time correction information, and end notifications to the control section when the application programs end the time correction process, and the correction inhibiting period is set between a first notification of the starting notifications and a last notification of the end notifications.