Invention Grant
- Patent Title: Phone test set modem
- Patent Title (中): 电话测试机调制解调器
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Application No.: US12873181Application Date: 2010-08-31
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Publication No.: US08213577B2Publication Date: 2012-07-03
- Inventor: Paul S. Swanson , Danny L. Maupin
- Applicant: Paul S. Swanson , Danny L. Maupin
- Applicant Address: US WA Everett
- Assignee: Fluke Corporation
- Current Assignee: Fluke Corporation
- Current Assignee Address: US WA Everett
- Agency: patenttm.us
- Main IPC: H04M1/24
- IPC: H04M1/24 ; H04M3/08 ; H04M3/22
Abstract:
A phone test set provides modem capability in a hand held device, enabling bi-directional data communications. Demodulation is provided by sampling digitized incoming phone line signals at 4 times carrier frequency, and employing values representing 0 and 90 degree samples to extract the information signal.
Public/Granted literature
- US20120051524A1 PHONE TEST SET MODEM Public/Granted day:2012-03-01
Information query
