Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1993-06-24
1994-05-03
Kuntz, Curtis
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
368 47, 455 582, H04M 1100, G04C 1102, H04B 1500
Patent
active
053095006
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.
REFERENCES:
patent: 4204398 (1980-05-01), Lemelson
patent: 5065423 (1991-11-01), Gaskill
patent: 5212810 (1993-05-01), Maeda et al.
patent: 5222127 (1993-06-01), Fukui
Iguchi Kazuaki
Koma Noriko
Cumming William
Kuntz Curtis
NEC Corporation
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