Portable telephone
First Claim
1. A portable telephone of a type to which a plurality of subscriber numbers are registered, comprising:
- time measuring means for measuring a calling period of time from start of calling to end of calling; and
memory means for saving and integrating results of measuring by the time measuring means for each subscriber number.
2 Assignments
0 Petitions
Accused Products
Abstract
A portable telephone of a type to which a plurality of subscriber numbers are registered comprises an air timer for measuring a calling period of time from start of calling and end of calling and a memory device for saving and integrating results of measuring by the air timer for each subscriber number. The portable telephone also includes a last call timer, a user timer and a system timer. The memory device includes a RAM. In the RAM, memory areas for the last call timer, user timer and system timer are provided for respective subscriber numbers. As a telephone communication is finished, a calling period of time measured by the air timer is saved in the last memory area to which the subscriber number just used is assigned and this calling period of time is also added up into the user timer memory area and/or system timer memory area for the just used subscriber number.
-
Citations
14 Claims
-
1. A portable telephone of a type to which a plurality of subscriber numbers are registered, comprising:
-
time measuring means for measuring a calling period of time from start of calling to end of calling; and memory means for saving and integrating results of measuring by the time measuring means for each subscriber number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification