Horology: time measuring systems or devices – Plural time zones – With manually actuated display
Patent
1993-03-25
1994-12-20
Roskoski, Bernard
Horology: time measuring systems or devices
Plural time zones
With manually actuated display
368 47, H04Q 700, G04G 900
Patent
active
053751043
ABSTRACT:
A mobile terminal equipment automatically displaying the local time in any desired geographical area for use in mobile telephone systems and the like. One example of this mobile terminal equipment is a mobile telephone set capable of displaying the local time wherever it is used by calculating the time difference from the home town on the basis of location registration area information supplied from the base station. Another example of this mobile terminal equipment is an IC card-inserting type mobile telephone set capable of displaying the home town time by calculating the time difference between the home town and its area of use on the basis of home town information stored in the IC card.
REFERENCES:
patent: 4313186 (1982-01-01), Yoshida
patent: 4644347 (1989-02-01), Lucas et al.
Ishii Junichi
Matsukawa Takanari
NEC Corporation
Roskoski Bernard
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