Portable telephone unit for preserving data that is renewed duri

Details Portable telephone unit for preserving data that is renewed duri Portable telephone unit for preserving data that is renewed duri

1996-08-13

1999-04-27

Bost, Dwayne D.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455572, 455574, 455 383, H04Q 736

Patent

active

058989307

ABSTRACT:
A buffer memory, an electrically erasable and writable ROM, a capacitor for holding a voltage, and a voltage detection circuit for detecting the voltage of a battery for a power source are provided in a portable telephone unit. During conversation, data to be saved is written into the buffer memory. At the time of ending the conversation, the data written in the buffer memory is transferred to a ROM and written therein. When the voltage detection circuit detects that the voltage of the battery is unobtainable, the buffer memory and the ROM are operated and the data written in the buffer memory is also transferred to the ROM and written therein by the voltage held in the capacitor.

REFERENCES:
patent: 5425079 (1995-06-01), Noda et al.
patent: 5438695 (1995-08-01), Morimura et al.
patent: 5668864 (1997-09-01), Kageyama
patent: 5687216 (1997-11-01), Svensson

Affiliated with

Also associated with

Rating

Portable telephone unit for preserving data that is renewed duri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable telephone unit for preserving data that is renewed duri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable telephone unit for preserving data that is renewed duri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-693413