Source: http://www.google.nl/patents/US6857021
Timestamp: 2018-01-21 03:03:19
Document Index: 686426794

Matched Legal Cases: ['art 1995', 'art 1995', 'art 1995', 'art 1998', 'art 1998', 'art 1996', 'art 2000', 'art 2000', 'art 1998', 'art 2002', 'art 1998', 'art 1998', 'art 1996', 'art 1999', 'art 1998', 'art 2007', 'art 2011', 'art 2012', 'art 2005', 'art 2011', 'art 2013', 'art 2008', 'art 2014', 'art 2014', 'art 2008', 'art 2014', 'art 2015', 'art 2005', 'art 2005', 'art 2006', 'art 2006', 'art 2006', 'art 2008', 'art 2008', 'art 2008', 'art 2009', 'art 2008', 'art 2011', 'art 2011', 'art 2012']

Patent US6857021 - Proximity-based registration on a data network telephony system - Google Patenten
Proximity-based registration of a user to a data network appliance on a data network telephony system. A portable information device, such as a PDA (Personal Digital Assistant) or passive proximity-based security badge, is associated with the user. When the portable information device is brought within...http://www.google.nl/patents/US6857021?utm_source=gb-gplus-sharePatent US6857021 - Proximity-based registration on a data network telephony system
Publicatienummer US6857021 B1
Aanvraagnummer US 09/515,796
Publicatiedatum 15 feb 2005
Aanvraagdatum 29 feb 2000
Prioriteitsdatum 30 okt 1998
Ook gepubliceerd als US6446127
Publicatienummer 09515796, 515796, US 6857021 B1, US 6857021B1, US-B1-6857021, US6857021 B1, US6857021B1
Uitvinders Guido M. Schuster, Sagan S. Sidhu, Ikhlaq S. Sidhu, Jacek A. Grabiec
Oorspronkelijke patenteigenaar 3Com Corporation
Patentcitaties (62), Niet-patentcitaties (43), Verwijzingen naar dit patent (170), Classificaties (30), Juridische gebeurtenissen (11)
US 6857021 B1
a proximity receiver operable to detect an announcement message transmitted by a portable information device, wherein the proximity receiver is detached from the portable information device;
an audio input interface operable to receive an audio input signal front a user;
an audio output interface operable to transmit an audio output signal to the user;
a voice-over-data module operable to convert the audio input signal into a digital audio transmit stream, and wherein the voice-over-data module is operable to convert a digital audio receive stream into the audio output signal;
an interface to a data network, wherein the data network provides data connectivity for a plurality of data communications channels using data transport protocols, wherein at least one of the plurality of data communications channels is operable to support the digital transmit stream and the digital receive stream, and wherein the data network links the data network appliance to a registration server; and
a registration module operable to transmit a registration request to the, registration server responsive to the proximity receiver detecting the announcement message.
2. The data network appliance of claim 1, wherein the proximity receiver is an infrared receiver.
a video input interface operable to receive a video input signal from the user;
a video output interface operable to transmit a video output signal to the user; and
a video-over-data module operable to convert the video input signal into a digital video transmit stream, and wherein the video-over-data module is operable to convert a digital video receive stream into the video output signal.
9. The data network appliance of claim 8, wherein the video-over-data module is integral with the voice-over-data module, and wherein the digital audio transmit stream and the digital video transmit stream compose a digital A/V transmit stream.
“Flexible Dial Plan for a Data Network Telephony System” to Schuster, et al., Ser. No. 09/515,797, filed concurrently herewith;
“System and Method for Enabling Encryption on a Telephony Network” to Schuster, et al., Serial No. 405,981;
B. PID-Enabled Data Network Telephony System
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Classificatie in de VS 709/227, 709/217, 709/218
Internationale classificatie H04L12/28, G06F1/16, H04M3/42, H04M3/428, H04L12/56, H04M7/00, G06F13/00
Coöperatieve classificatie H04M3/42348, H04M3/4285, H04M2242/30, H04M3/42, G06F1/1632, H04W28/18, H04M2203/2094, H04M3/42272, H04M3/42229, H04M3/42161, H04M3/42153, H04M3/54, H04M7/006, H04M2250/02
Europese classificatie H04M3/42, G06F1/16P6, H04M3/42E2, H04W28/18, H04M3/42M, H04M3/42M7P
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHUSTER, GUIDO M.;SIDHU, SAGAN S.;SIDHU, IKHLAQ S.;AND OTHERS;REEL/FRAME:011107/0551
15 juli 2010 AS Assignment
23 sept 2016 REMI Maintenance fee reminder mailed
4 april 2017 FP Expired due to failure to pay maintenance fee