Spreadtrum Communications Corporation

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Sunnyvale, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Maximum ratio combining of channel estimation for joint detection i...
- Patent number 7,343,155
- Issue date Mar 11, 2008
- Spreadtrum Communications Corporation
- Jian Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Printed circuit board including a notch filter for attenuating radi...
- Patent number 7,327,208
- Issue date Feb 5, 2008
- Spreadtrum Communications Corporation
- Wulin Shi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for frequency tracking based on recovered data
- Patent number 7,251,300
- Issue date Jul 31, 2007
- Spreadtrum Communications Corporation
- Jiayi Zhuang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Desktop cellular phone having SIM card-related security features
- Patent number 7,248,896
- Issue date Jul 24, 2007
- Spreadtrum Communications Corporation
- Kunyuan Luo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for silent frame detection in a GSM communicat...
- Patent number 7,245,878
- Issue date Jul 17, 2007
- Spreadtrum Communications Corporation
- Jingdong Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Receiver signal dynamic range compensation based on received signal...
- Patent number 7,200,194
- Issue date Apr 3, 2007
- Spreadtrum Communications Corporation
- Jingdong Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for frequency estimation using iterative filte...
- Patent number 7,171,162
- Issue date Jan 30, 2007
- Spreadtrum Communications Corporation
- Jingdong Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dummy PCH block detection for power saving in GSM handset
- Patent number 7,158,795
- Issue date Jan 2, 2007
- Spreadtrum Communications Corporation
- Yan Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase difference based frequency correction channel detector for wi...
- Patent number 7,110,478
- Issue date Sep 19, 2006
- Spreadtrum Communications Corporation
- Jingdong Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bi-directional time slot estimator for wireless communication system
- Patent number 7,092,377
- Issue date Aug 15, 2006
- Spreadtrum Communications Corporation
- Jingdong Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power ring architecture for embedded low drop off voltage regulators
- Patent number 6,897,572
- Issue date May 24, 2005
- Spreadtrum Communications Corporation
- Datong Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
I/O buffer having a protection circuit for handling different volta...
- Patent number 6,784,693
- Issue date Aug 31, 2004
- Spreadtrum Communications Corporation
- Renyong Fan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Differential voltage memory bus
- Patent number 6,735,130
- Issue date May 11, 2004
- Spreadtrum Communications Corporation
- Renyong Fan
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
METHODS AND APPARATUS FOR POST-PROCESSING OF SPEECH SIGNALS
- Publication number 20080228474
- Publication date Sep 18, 2008
- Spreadtrum Communications Corporation
- Heyun Huang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
METHODS AND APPARATUS FOR VOICE ACTIVITY DETECTION
- Publication number 20080133226
- Publication date Jun 5, 2008
- Spreadtrum Communications Corporation
- Heyun Huang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Apparatus and methods for system multiplexing and program element i...
- Publication number 20080112406
- Publication date May 15, 2008
- Spreadtrum Communications Corporation
- Yaqiang Ding
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PROCESSES AND APPARATUS FOR ESTABLISHING A SECURED CONNECTION WITH...
- Publication number 20080098224
- Publication date Apr 24, 2008
- Spreadtrum Communications Corporation
- Miao Hui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Methods and apparatuses of fast cross motion estimation for video e...
- Publication number 20070206677
- Publication date Sep 6, 2007
- Spreadtrum Communications Corporation
- Yaqiang Ding
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS FOR AIR INTERFACE MESSAGE TRANSFER IN FAST CALL SETUP PROCE...
- Publication number 20070177573
- Publication date Aug 2, 2007
- Spreadtrum Communications Corporation
- Baikui Xu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Methods for air interface message transfer in fast call setup proce...
- Publication number 20070165595
- Publication date Jul 19, 2007
- Spreadtrum Communications Corporation
- Baikui Xu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for uplink synchronization
- Publication number 20070160029
- Publication date Jul 12, 2007
- Spreadtrum Communications Corporation
- Liyun Luo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Variable length physical random access channel frame structure and...
- Publication number 20070064657
- Publication date Mar 22, 2007
- Spreadtrum Communications Corporation
- Tao Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Physical random access channel frame structure and realization
- Publication number 20070064656
- Publication date Mar 22, 2007
- Spreadtrum Communications Corporation
- Ling Lv
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus of channel estimation in an intra-frequency cell
- Publication number 20070058697
- Publication date Mar 15, 2007
- Spreadtrum Communications Corporation
- Jian Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GSM/GPRS desktop phone message banner
- Publication number 20070033099
- Publication date Feb 8, 2007
- Spreadtrum Communications Corporation
- Xiongwei Zhu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Joint cell detection method in TD-SCDMA system
- Publication number 20060268810
- Publication date Nov 30, 2006
- Spreadtrum Communications Corporation
- Jian Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for automatic frequency correction
- Publication number 20060233153
- Publication date Oct 19, 2006
- Spreadtrum Communications Corporation
- Jian Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for determining QPSK modulation sequence of a downlink synch...
- Publication number 20060222133
- Publication date Oct 5, 2006
- Spreadtrum Communications Corporation
- Jiwu Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Printed circuit board including a notch filter for attenuating radi...
- Publication number 20060186970
- Publication date Aug 24, 2006
- Spreadtrum Communications Corporation
- Wulin Shi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Time calibration method for mobile phone
- Publication number 20060160547
- Publication date Jul 20, 2006
- Spreadtrum Communications Corporation
- Xiaosi Yang
- G04 - HOROLOGY
Information Patent Application
Method for adjusting speech volume in a telecommunications device
- Publication number 20060150049
- Publication date Jul 6, 2006
- Spreadtrum Communications Corporation
- Zhi Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for carrier frequency offset fine estimation in TD-SCDMA system
- Publication number 20060140257
- Publication date Jun 29, 2006
- Spreadtrum Communications Corporation
- Jiwu Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for measuring locking time and frequency error in RF receiver
- Publication number 20060126710
- Publication date Jun 15, 2006
- Spreadtrum Communications Corporation
- Wei Guo
- G01 - MEASURING TESTING
Information Patent Application
Desktop cellular phone having a SIM card with an encrypted SIM PIN
- Publication number 20060121882
- Publication date Jun 8, 2006
- Spreadtrum Communications Corporation
- Tong Zhao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for network search in a wireless communications system
- Publication number 20060116104
- Publication date Jun 1, 2006
- Spreadtrum Communications Corporation
- Xiaosi Yang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for cell locking in a wireless communication device
- Publication number 20060063530
- Publication date Mar 23, 2006
- Spreadtrum Communications Corporation
- Yongwei Niu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Spreadtrum Communications Corporation

Organization

Patents Grantslast 30 patents

Maximum ratio combining of channel estimation for joint detection i...

Printed circuit board including a notch filter for attenuating radi...

Method and apparatus for frequency tracking based on recovered data

Desktop cellular phone having SIM card-related security features

Method and apparatus for silent frame detection in a GSM communicat...

Receiver signal dynamic range compensation based on received signal...

Method and apparatus for frequency estimation using iterative filte...

Dummy PCH block detection for power saving in GSM handset

Phase difference based frequency correction channel detector for wi...

Bi-directional time slot estimator for wireless communication system

Power ring architecture for embedded low drop off voltage regulators

I/O buffer having a protection circuit for handling different volta...

Differential voltage memory bus

Patents Applicationslast 30 patents

METHODS AND APPARATUS FOR POST-PROCESSING OF SPEECH SIGNALS

METHODS AND APPARATUS FOR VOICE ACTIVITY DETECTION

Apparatus and methods for system multiplexing and program element i...

PROCESSES AND APPARATUS FOR ESTABLISHING A SECURED CONNECTION WITH...

Methods and apparatuses of fast cross motion estimation for video e...

METHODS FOR AIR INTERFACE MESSAGE TRANSFER IN FAST CALL SETUP PROCE...

Methods for air interface message transfer in fast call setup proce...

Method and system for uplink synchronization

Variable length physical random access channel frame structure and...

Physical random access channel frame structure and realization

Method and apparatus of channel estimation in an intra-frequency cell

GSM/GPRS desktop phone message banner

Joint cell detection method in TD-SCDMA system

Method and apparatus for automatic frequency correction

Method for determining QPSK modulation sequence of a downlink synch...

Printed circuit board including a notch filter for attenuating radi...

Time calibration method for mobile phone

Method for adjusting speech volume in a telecommunications device

Method for carrier frequency offset fine estimation in TD-SCDMA system

Method for measuring locking time and frequency error in RF receiver

Desktop cellular phone having a SIM card with an encrypted SIM PIN

Method for network search in a wireless communications system

Method for cell locking in a wireless communication device

Trademarklast 30 trademarks