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Wireless modem

A modem, wireless technology, used in telephone communications, digital transmission systems, electrical components, etc., to solve problems such as communication integrity failures

Inactive Publication Date: 2002-12-11
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, the integrity of communications sent and / or received using such devices will often fail

Method used

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Embodiment Construction

[0016] The wireless modem (WM) device described herein for use in a wireless modem system and also referred to as a wireless modem jack (WMJ) or RF link operates in the ISM band (902-928 MHz), for example 900 Mz. Wireless modem systems include, for example, figure 1 A base unit 1000 and a wireless remote modem unit 10001 are shown. Both units are capable of sending and receiving data / fax simultaneously. The only difference is that the base unit 1000 does not require a "modem" function (e.g. 18') and associated telephony processing (e.g. 20') due to the figure 1 As shown, data is modulated and demodulated into analog signals that are transmitted and received at remote wireless unit 1001 .

[0017] The design of the system is preferably based on Direct Sequence Spread Spectrum (DSSS) technology, which also provides maximum security for data transmitted in the radio spectrum, especially in the 900MHz range. Currently, the maximum data transfer for WMJ can reach 115Kbps (via ra...

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PUM

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Abstract

A wireless modem system with two devices, each capable of sending and receiving data over multiple RF channels, the data being applied sequentially to the channels. In one embodiment, a first device is used to couple to a computer to receive data from the computer. The first device encodes data received from the computer and transmits the received data to the second device using a digital wireless transmission format. The second device receives the data transmitted from the first device in a digital wireless transmission format and further processes it into an analog format for transmission over the wired telephone network.

Description

technical field [0001] The present invention relates to wireless communications, and more particularly, the present invention relates to a wireless modem system that allows a computer to process data remotely without being physically dependent on a telephone handset communication port. The system operates to protect the integrity of communications sent and / or received on such modems. Background technique [0002] Modems are used throughout the world to enable electronic devices, such as computers, to communicate with each other. Modems typically couple a computer to a communications jack through which communications are sent and / or received using a wire or cable. However, requiring a modem to be physically coupled to a jack limits the ability to move freely while using the modem-enabled device. In response, wireless modems were designed to enable users to send and / or receive communications from laptop computers and other electronic devices without requiring the computer to...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56H04M1/725H04M11/06
CPCH04M1/725H04M11/06
Inventor P·P·蒂纳洪T·普朗蒂普
Owner THOMSON LICENSING SA