Hands-free digital recorder system for cellular telephones
US6748238B1 · kind B1 · utility
69Cited by
14References
41Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2000 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Jun 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6041
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A digital recorder system for use with cellular telephones includes a housing that defines a cavity into which a cellular telephone may be received. During cellular telephone use, a microphone disposed on the housing records sounds, and a speak disposed within the housing plays back sound. A digital recorder within the housing automatically records the past twenty-seconds of conversation. A user may press a control button on the housing to retain up to four such twenty-second segments, and may press another control button on the housing to record sound prospectively. An LED on the housing confirms operational mode of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.