Apparatus for displaying time-of-day data adaptively to different time zones
First Claim
1. A time-keeping apparatus comprising:
- a timepiece for constantly generating time-of-day data;
receiving means for receiving area identifying codes transmitted from a cellular mobile communications system which covers a plurality of areas, wherein said receiving means receives a unique area identifying code as the time-keeping apparatus is moved respectively from one area to another of said plurality of areas;
a memory having a plurality of time difference data prestored in memory locations accessible as a function of said unique area identifying code received respectively by said receiving means;
read control means for recalling one of the prestored time difference data from a location of said memory corresponding to said unique area identifying code and modifying said time-of-day data in accordance with said one of the prestored time difference data; and
a display unit for displaying the modified time-of-day data.
1 Assignment
0 Petitions
Accused Products
Abstract
A cellular mobile station is operable in a telephone mode and a time data display mode. During the time display mode, the station constantly receives an area identifying code transmitted from a cellular mobile communications system. On crossing a boundary between adjoining cell-site areas, a time difference value is entered from a keypad into a location of a memory corresponding to the received code. This process is continued on a learning basis to store as many time difference values into the memory as there are cell-site areas along the route of a journey. Following the learning process, the station constantly receives an area identifying code and recalls one of the stored time difference data from the memory corresponding to a code received on crossing a boundary and modifies displayed timepiece data with the recalled time difference.
-
Citations
9 Claims
-
1. A time-keeping apparatus comprising:
-
a timepiece for constantly generating time-of-day data; receiving means for receiving area identifying codes transmitted from a cellular mobile communications system which covers a plurality of areas, wherein said receiving means receives a unique area identifying code as the time-keeping apparatus is moved respectively from one area to another of said plurality of areas; a memory having a plurality of time difference data prestored in memory locations accessible as a function of said unique area identifying code received respectively by said receiving means; read control means for recalling one of the prestored time difference data from a location of said memory corresponding to said unique area identifying code and modifying said time-of-day data in accordance with said one of the prestored time difference data; and a display unit for displaying the modified time-of-day data. - View Dependent Claims (2, 3, 4)
-
-
5. A time-keeping apparatus comprising:
-
a timepiece for constantly generating time-of-day data; receiving means for receiving area identifying codes transmitted from a cellular mobile communications system which covers a plurality of areas, wherein said receiving means receives a unique area identifying code as the time-keeping apparatus is moved respectively from one area to another of said plurality of areas; a memory; data entry means for manually entering time difference data; write control means for storing one of a plurality of successive time difference data entered from said data entry means into a location of said memory corresponding to the unique area identifying code; read control means for recalling time difference data from said memory from a location corresponding to an area identifying code subsequently received by said receiving means and for modifying said time-of-day data with the time difference data recalled from the memory; and a display unit for displaying the modified time-of-day data. - View Dependent Claims (6, 7, 8)
-
-
9. A method for displaying timepiece data, comprising the steps of:
-
a) receiving an area identifying code from a cell site of a cellular mobile communications system, said area identifying code identifying the cell site; b) storing a time difference value input by a keypad into a memory location corresponding to the code received by the step (a); c) repeating the steps (a) and (b) to store a plurality of time difference values in memory locations corresponding to successively received area identifying codes; d) receiving an area identifying code from a cell site of said cellular mobile communications system; e) recalling one of the time difference values from a memory location corresponding to the code received in the step (d); f) modifying timepiece data in accordance with the recalled time difference value; and g) displaying the modified timepiece data.
-
Specification