Source: http://www.google.com/patents/US8144548?dq=5,758,352
Timestamp: 2014-12-28 14:55:15
Document Index: 355287045

Matched Legal Cases: ['Application No. 2005', 'Application No. 200510115629', 'Application No. 05256191', 'Application No. 05256191', 'Application No. 05256191', 'Application No. 2005']

Patent US8144548 - Electronic device, time correction method and time correction program thereof - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn 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...http://www.google.com/patents/US8144548?utm_source=gb-gplus-sharePatent US8144548 - Electronic device, time correction method and time correction program thereofAdvanced Patent SearchPublication numberUS8144548 B2Publication typeGrantApplication numberUS 11/239,399Publication dateMar 27, 2012Filing dateSep 30, 2005Priority dateApr 15, 2005Also published asCN1848001A, CN1848001B, EP1712960A2, EP1712960A3, EP1712960B1, US20060234671Publication number11239399, 239399, US 8144548 B2, US 8144548B2, US-B2-8144548, US8144548 B2, US8144548B2InventorsTatsuya Gamo, Makoto Sugimoto, Yoshiaki Kikuchi, Yuko Nakajima, Makoto NakanoOriginal AssigneeFujitsu LimitedExport CitationBiBTeX, EndNote, RefManPatent Citations (14), Non-Patent Citations (5), Referenced by (1), Classifications (7), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetElectronic device, time correction method and time correction program thereofUS 8144548 B2Abstract 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.
CROSS-REFERENCE TO RELATED APPLICATIONS This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2005-118672, filed on Apr. 15, 2005, the entire contents of which are incorporated herein by reference.
SUMMARY OF THE INVENTION The object of the present invention is to enable an electronic device that corrects its device side time with a time correction information supplied from outside the device to perform the time correction appropriately.
According to this configuration, a time correction information supplied from outside the device is received at the reception section; and if the information is received during any correction inhibiting periods, the received time correction information is discarded; or if the information is received other than the correction inhibiting periods, then the device side time is corrected. Here, �outside the device� indicates such as base stations and a network. Further, the time correction inhibiting periods consist of plural time periods, for example, such as the following.
(1) A certain period after power-on (T1); (2) A period while a time correction is in progress, the period for preventing repetition of correction by another time correction information that is supplied during the processing of time correction (T2) (=a certain period during which the processing of time correction is prohibited in order to prevent a repeat of correction); (3) A certain period after the processing of time correction is completed (T3); (4) A certain period that can be set arbitrary other than these (1) through (3) (T4).
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a mobile terminal device according to a first embodiment of the present invention;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram of a mobile terminal device according to a first embodiment, and FIG. 2 is a diagram showing its appearance.
When the mobile terminal device 2 receives a time correction information from the base stations or the network (step S1), the management program 420 constituting the framework is executed and a judgment is made whether any correction inhibiting periods is applicable or not (step S2). This �any correction inhibiting periods� means one or plural periods selected from the following time correction inhibiting periods.
(1) A certain period after power-on (T1); (2) A period while a time correction is in progress, the period for preventing repetition of correction by another time correction information that is supplied during the processing of time correction (T2) (=a certain period during which the processing of time correction is prohibited in order to prevent a repeat of correction) (3) A certain period after the processing of time correction is completed (T3); (4) A certain period that can be set arbitrary other than these (1) through (3) (T4).
Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG. 13. FIG. 13 is a block diagram showing a mobile terminal device 2 according to a second embodiment. In FIG. 13, the same symbols are assigned to parts identical to those of the mobile terminal 2 in FIG. 1.
Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG. 16. FIG. 16 is a flowchart showing the processing of time correction inhibition and time correction according to a third embodiment.
Other Embodiments (1) In the above-described embodiments, the descriptions have been given by exemplifying the mobile terminal device 2 such as mobile phones. However, the present invention can also be applied to any electronic devices as long as a device correct its device side time with a time correction information supplied from outside the device. For example, as shown in FIG. 17, the present invention can be applied to a PC (personal computer) 24, or to a PDA (Personal Digital Assistant) 26 shown in FIG. 18, or to a camera 28 shown in FIGS. 19A and 19B. FIG. 19A is a front view of the camera 28, and the reference numeral 30 indicates a lens part. FIG. 19B is a rear view of the camera 28. In these FIGS. 17, 18, 19A and 19B, the same symbols are assigned to parts identical to the mobile terminal device 2 in FIGS. 1 and 2, and the explanation is omitted. In such electronic devices, time correction can be performed appropriately and wrong correction can be prevented as well. In addition to these devices, the present invention can also be applied to a clock, a radio receiver, a TV receiver and so on, and the same effect can be expected.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4234958 *Jun 16, 1977Nov 18, 1980Lathem Time Recorder Co., Inc.Radio synchronized time-keeping apparatus and methodUS5724316 *Sep 26, 1995Mar 3, 1998Delco Electronics CorporationGPS based time determining system and methodUS6212370Aug 26, 1997Apr 3, 2001Kokusai Electric Co., Ltd.Radio receiver for selective callingUS20030174584Feb 21, 2003Sep 18, 2003Teruhiko FujisawaElectronic device, reception control method for an electronic device, and reception control program for an electronic deviceUS20030198140Mar 21, 2003Oct 23, 2003Eisaku ShimizuRadio-controlled timepiece and control method for a radio-controlled timepieceCN1441330AFeb 24, 2003Sep 10, 2003精工爱普生株式会社Electronic device and its receiving control method and receiving control programCN1447198AMar 24, 2003Oct 8, 2003精工爱普生株式会社Wave correction clock and control method of wave correction clockJP2000356692A Title not availableJP2002156478A Title not availableJP2002174689A Title not availableJP2002216280A Title not availableJPH0944425A Title not availableJPH1055224A Title not availableJPH1070747A Title not available* Cited by examinerNon-Patent CitationsReference1Chinese Office Action, Application No. 200510115629.1; Jan. 11, 2008; 11-pages.2European Office Action dated Dec. 8, 2009 issued in corresponding European Patent Application No. 05256191.7.3European Office Action issued in corresponding European Patent Application No. 05256191.7-1240 dated Nov. 4, 2010.4Extended European Search Report dated Mar. 6, 2009 issued in corresponding European Patent Application No. 05256191.7.5Japanese Office Action dated Jan. 25, 2011 issued in corresponding Japanese Patent Application No. 2005-118672.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS20130009774 *May 8, 2012Jan 10, 2013Anton SabetaReminder method & system for merchandise returns* Cited by examinerClassifications U.S. Classification368/47, 368/13International ClassificationG04C11/02Cooperative ClassificationG04G5/002, G04R20/00, G04R20/20European ClassificationG04G5/00BLegal EventsDateCodeEventDescriptionNov 23, 2005ASAssignmentOwner name: FUJITSU LIMITED, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GAMO, TATSUYA;SUGIMOTO, MAKOTO;KIKUCHI, YOSHIAKI;AND OTHERS;REEL/FRAME:017267/0400;SIGNING DATES FROM 20050920 TO 20051005Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GAMO, TATSUYA;SUGIMOTO, MAKOTO;KIKUCHI, YOSHIAKI;AND OTHERS;SIGNING DATES FROM 20050920 TO 20051005;REEL/FRAME:017267/0400RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google