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Intellectual property rights (IPR) in ITU-T Recommendations

Patent statement declaration registered as G722-02
Citation: http://handle.itu.int/11.1002/ps/G722-02
Recommendation number: G.722
ITU registration date: 1986-06-17
Statement declaration date: 1986-06-17
Patent holder/organization: AT&T Corp.
Main contact: Mr. Thomas Frost, AT&T Intellectual Property Management
Address: Room 2E37 - Bldg 2
180 Park Ave, Florham Park, New Jersey 07932
United States
Tel.: +1 973 236 6760
Fax: +1 973 236 6452
Declaration form version: Declared without the use of the form.
Licensing declaration: Pat. pol. 2.2
Late submission remark: -
Statement remark: AT&T informed on 11 July 2001 that AT&T no longer owns essential IPR for this Recommendation.
Archived declaration:
TSB patent IdCountryPublication numberApplication numberTitleStatusEPO search (Espacenet)
G722-02-01
US
4048443  Granted
G722-02-02
US
3566035 Real Time Cepstrum AnalyzerGranted
G722-02-03
US
3631520 Predictive Coding of Speech-SignalsGranted
G722-02-04
US
3652957 Adaptive Delata ModulatorGranted
G722-02-05
US
3703688 Digital Adaptive-to-Linear Delta-Modulated Signal ConverterGranted
G722-02-06
US
3772682 Digital Conversion from One PCM format to AnotherGranted
G722-02-07
US
3897591 Secret Transmission of IntelligenceGranted
G722-02-08
US
3924074 Pulse Position Modulation-Key Signalling SystemGranted
G722-02-09
US
3925616 Apparatus for Determining-the Glottal WaveformGranted
G722-02-10
US
3967067 Secret TelephonyGranted
G722-02-11
US
3985958 Secret TelephonyGranted
G722-02-12
US
3995115 Speech Privacy SystemGranted
G722-02-13
US
4048443 Digital Speech Communication System-For Minimizing Quantizing NoiseGranted
G722-02-14
US
4100377 Packet Transmission-of sppechGranted
G722-02-15
US
4133976 Predictive Speech Signal Coding-With Reduced Noise EffectsGranted
G722-02-16
US
4142066 Suppression of Idl Channel Noise-in Delta Modulation SystemsGranted
G722-02-17
US
4184049 Transform Speech Speech Signal-Coding with pitch-controlled adaptive-quantizingGranted
G722-02-18
US
4189627 Electoacoustic Transducer Filder AssemblyGranted
G722-02-19
US
4220819 Residual Excited Predictive Speech Coding SystemGranted
G722-02-20
US
4354057 Predictive Signal Coding With-Partitioned QuantizationGranted
G722-02-21
US
4375581 Digital Transmission-Error ReductionGranted
G722-02-22
US
4395593 Acoustic differential-Digital CoderGranted
G722-02-23
US
4417102 Noise and bit rate-reduction arrangementsGranted
G722-02-24
US
4437087 Adaptive differential PCM codingGranted
G722-02-25
US
4449190 Silence Editing-Speech ProcessorGranted
G722-02-26
US
4472832 Digital speech coderGranted
G722-02-27
US
4512013 Simultaneous transmission of-speech and data over voiceGranted
G722-02-28
US
4518950 Digital Code converterGranted
Disclaimer: This database only displays information communicated to the ITU Secretariat, and is not certified to be either accurate or complete.
The ITU secretariat does not verify the veracity, completeness or accuracy of the information contained in the Patent and Software Declaration Forms, including the actual or potential essentiality of patents or patent applications declared as essential to ITU-T Recommendations.

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