Portable phone device
US6763245B1 · kind B1 · utility
9Cited by
15References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2000 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Feb 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/725
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a housing comprising an upper case and a lower case are stored a whip antenna, a built-in antenna, a receiver for outputting a voice, a display part for indicating characters and marks, a back side key to be operated during the call, a flexible substrate comprising a diaphragm switch, a printed board, and a shield case for shielding a receiving circuit part and a radio circuit part. In the case the user would like to keep the content of the conversation during the call, the back side key can be operated by a finger. Accordingly, the diaphragm switch is turned on so as to drive a recording mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.