IP Library Granted Patent US 7,206,305
Granted Patent B2
US 7,206,305 · App. 10/095,866 · Granted Apr 17, 2007

Software code for improved in-band signaling for data communications over digital wireless telecommunications networks

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Quick Facts
Patent No.
US 7,206,305
App. No.
10/095,866
Granted
Apr 17, 2007
Kind
B2
Abstract

An inband signaling modem communicates digital data over a voice channel of a wireless telecommunications network. An input receives digital data. An encoder converts the digital data into audio tones that synthesize frequency characteristics of human speech. The digital data is also encoded to prevent voice encoding circuitry in the telecommunications network from corrupting the synthesized audio tones representing the digital data. An output then outputs the synthesized audio tones to a voice channel of a digital wireless telecommunications network.

Claims (7)

1. Software code stored on computer-readable memory and executable on a processor for communicating digital data over a voice channel of a digital wireless telecommunications network comprising:

code for forming the digital data into a packet payload in an inband signaling packet;

code for attaching preconditioning bits to the inband signaling packet that prevent circuitry in the wireless telecommunications network from corrupting the digital data;

code for converting the bits in the inband signaling packet into a series of voice frequency tones that simulate characteristics of human speech; and

code for converting the simulated voice frequency tones into encoded data transmitted over the digital voice channel of a wireless telecommunications network.

2. The software code according to claim 1 including code for generating a sequence of bits in a preamble of the inband signaling packet wherein the sequence of bits include alternating or random bit patterns selected to prevent filtering tones representing digital data in the packet payload.

3. The software code according to claim 1 including code that converts the voice frequency tones into analog signals before sending the synthesized voice signals to a voice coder for transmission over the wire telecommunications network.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2024
From: AIRBIQUITY, INC.
To: KARMA AUTOMOTIVE, LLC
Reel/Frame 066977/0722 →
RELEASE OF SECURITY INTEREST Recorded Apr 8, 2020
From: SILICON VALLEY BANK
To: AIRBIQUITY INC.
Reel/Frame 052341/0327 →
SECURITY INTEREST Recorded Apr 2, 2015
From: AIRBIQUITY INC.
To: SILICON VALLEY BANK
Reel/Frame 035364/0317 →
SECURITY INTEREST Recorded Jun 3, 2014
From: AIRBIQUITY INC.
To: ORIX VENTURES, LLC
Reel/Frame 033083/0036 →
RELEASE OF SECURITY INTEREST Recorded Aug 15, 2008
From: KIRNAF, LTD.
To: AIRBIQUITY INC.
Reel/Frame 021387/0827 →
RELEASE OF SECURITY INTEREST Recorded Aug 12, 2008
From: INTERNET VENTURES, LLC; SHELL INTERNET VENTURES B.V.; ACORN VENTURES IS, LLC
To: AIRBIQUITY INC.
Reel/Frame 021371/0399 →
SECURITY INTEREST Recorded Jan 2, 2003
From: AIRBIQUITY INC. F/K/A INTEGRATED DATA COMMUNICATIONS, INC.
To: ACORN VENTURES IS, LLC; SHELL INTERNET VENTURES B.V.; KIRNAF, LTD.; INTERNET VENTURES, LLC
Reel/Frame 013645/0371 →