ITU/TDD modem
US5905476A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1996 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Jan 16, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/066
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A modem system includes an ITU/TDD/VOICE modem or other modem that is connected to a local computer and a telephone line. The ITU/TDD/VOICE modem allows transmission and reception of ITU, TDD, and voice signals over the telephone line to and from a remote device (such as a remote TDD, ITU modem, or telephone). The modem system may include one or more of the following features. The modem system may be used in a network whereby an indicator on a display screen indicates sound energy received by the modem over the line. The modem system may allow speed jumps from one speed to another during a call. The modem system includes a display in which the screen is split into two vertical areas, to display text sent between remote computers. The text sent by one computer is displayed in the right vertical area, while the text of the other computer is displayed in the left area. The vertical placement of the texts are based on the relative time in which they were sent to the other person. The modem system may also provide a special provision for 300 BPS connections, voice recognition, typing during a file transfer, and prevention of file transfers and/or high speed transfers. A local modem may …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.