Clock for mobile phones

• US 20020098857A1
• Filed: 01/25/2001
• Published: 07/25/2002
• Est. Priority Date: 01/25/2001
• Status: Active Grant

• Current Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Ishii, Atsushi
• Granted Patent: US 6,728,533 B2
• Time in Patent Office: Days
• US Class Current: 455/502
• CPC Class Codes: G04G 5/00 Setting, i.e. correcting or changing, the time-indication radio-controlled time-pieces G04R
• CPC Class Codes: G04G 9/0011 using coded signals synchronisation combined with automatic setting at regular intervals, e.g. by coded signals G04G7/00
• CPC Class Codes: H04M 1/72451 according to schedules, e.g. using calendar applications

Abstract

In a mobile phone having a clock display therein, wherein the mobile phone is in wireless communication with a base station located in a time zone having a current local time (CLT), and wherein the base station transmits a control signal having carried therein at least a universal coordinated time (UCT) signal, a system identification (SID) signal, a network identification (NID) signals, a CLT signal, and a daylight savings time (DST) flag, wherein the mobile phone is transportable to be wireless communications with another base station in another time zone, and wherein, upon securing communications with a base station, the phone synchronizes its internal clock to the CLT of the base station; a clock includes a selection mechanism for use by a user to select a home time zone (HTZ), and to select a displayed time on the clock display from the group of displayed times consisting of CLT and HTZ; and a displayed time calculating mechanism which determines the time displayed on the clock display as a function of the CLT and the HTZ.

Claims

1. In a mobile phone having a clock display therein, wherein the mobile phone is associated with a home service area network;

is in wireless communication with a base station located in a time zone having a current local time (CLT), and wherein the base station transmits a control signal having carried therein at least a universal coordinated time (UCT) signal, a system identification (SID) signal, a network identification (NID) signals, a CLT signal, and a daylight savings time (DST) flag, wherein the mobile phone is transportable to be in wireless communications with another base station in another time zone, and wherein, upon securing communications with a base station, the phone synchronizes its internal clock to the CLT of the base station;

a clock comprising;

a selection mechanism for use by a user to select a home time zone (HTZ), and to select a displayed time on the clock display from the group of displayed times consisting of CLT and HTZ; and

a displayed time calculating mechanism which determines the time displayed on the clock display as a function of the CLT and the HTZ.

2. The clock of claim 1 wherein the phone includes a PDA, having PDA events stored therein, and which further includes a PDA event controller for displaying PDA events in the times according to the user selected time zone.

3. The clock of claim 1 wherein the phone further includes a home time zone setting mechanism to set automatically the home time zone to the home system of the phone.

4. The clock of claim 1 wherein the phone includes a multiple time zone alerting mechanism to notify a user if the phone is located in a region where more than one time zone may be associated with the home service area network.

5. The clock of claim 4 wherein said selection mechanism includes a multiple time zone discriminator for allowing a users to select a specific time zone as the home time zone from the possible time zones associated with the home service area network.

6. In a mobile phone having a clock display therein, and also includes a PDA, wherein the PDA has PDA events stored therein, wherein the mobile phone is associated with a home service area network;

is in wireless communication with a base station located in a time zone having a current local time (CLT), and wherein the base station transmits a control signal having carried therein at least a universal coordinated time (UCT) signal, a system identification (SID) signal, a network identification (NID) signals, a CLT signal, and a daylight savings time (DST) flag, wherein the mobile phone is transportable to be in wireless communications with another base station in another time zone, and wherein, upon securing communications with a base station, the phone synchronizes its internal clock to the CLT of the base station;

a clock comprising;

a selection mechanism for use by a user to select a home time zone (HTZ), and to select a displayed time on the clock display from the group of displayed times consisting of CLT and HTZ;

a displayed time calculating mechanism which determines the time displayed on the clock display as a function of the CLT and the HTZ; and

a PDA event controller for displaying PDA events in the times according to the user selected time zone.

7. The clock of claim 6 wherein the phone further includes a home time zone setting mechanism to set automatically the home time zone to the home system of the phone.

8. The clock of claim 6 wherein the phone includes a multiple time zone alerting mechanism to notify a user if the phone is located in a region where more than one time zone may be associated with the home service area network.

9. The clock of claim 8 wherein said selection mechanism includes a multiple time zone discriminator for allowing a users to select a specific time zone as the home time zone from the possible time zones associated with the home service area network.