U.S. ROBOTICS MOBILE COMMUNICATIONS CORP.
Patent Owner
Stats
- 12 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 23, 2001 most recent publication
Details
- 12 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 838 Total Citation Count
- May 02, 1989 Earliest Filing
- 5 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
6144464 Method and system for modification of fax data rate over wireless channelsSep 11, 97Nov 07, 00[H04N]
6075797 Method and system for detecting mobility of a wireless-capable modem to minimize data transfer rate renegotiationsOct 17, 97Jun 13, 00[H04J]
6058291 Methods and apparatus for carrier suppression in a radio modulatorDec 03, 97May 02, 00[H04B, H01Q]
6055245 Apparatus and method for digitally conveying alert tones between an analog modem and an ISDN terminal adapterMar 31, 97Apr 25, 00[H04M, H04J]
6044150 Method and apparatus for a host-based personal computer speakerphoneAug 21, 97Mar 28, 00[G06F]
6038430 Method and apparatus for improving transmission of data in a wireless networkDec 10, 97Mar 14, 00[H04B]
5991337 Method and apparatus for improving the signal-to-noise ratio of low-magnitude input signals in modemsNov 24, 97Nov 23, 99[H04B]
5987568 Apparatus and method for operably connecting a processor cache and a cache controller to a digital signal processorMay 08, 97Nov 16, 99[G06F]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6307880 Method and system for externally incorporating automatic switching between voice and data communicationsExpiredOct 24, 97Oct 23, 01[H04M, H04B]
5128964 Modulation method and apparatus for multicarrier data transmissionExpiredOct 10, 90Jul 07, 92[H04L]
5117418 Frequency domain adaptive echo canceller for full-duplex data transmissionExpiredNov 09, 90May 26, 92[H04M, H04L]
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