Zhigang Ruan

Person

Waterloo, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Method, system and apparatus for managing transports
- Patent number 9,026,172
- Issue date May 5, 2015
- BlackBerry Limited
- Zhigang Ruan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Error correction for DTMF corruption on uplink
- Patent number 8,615,280
- Issue date Dec 24, 2013
- BlackBerry Limited
- Valentina Iquorevna Kramarenko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
DTMF signalling between mobile and server
- Patent number 8,606,256
- Issue date Dec 10, 2013
- BlackBerry Limited
- Zhigang Ruan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, system and apparatus for handling a call received at a mobi...
- Patent number 8,583,096
- Issue date Nov 12, 2013
- BlackBerry Limited
- Zhigang Ruan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for continuous PIM synchronization between a ho...
- Patent number 8,548,943
- Issue date Oct 1, 2013
- BlackBerry Limited
- Anish Agrawal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Error correction for DTMF corruption on uplink
- Patent number 8,423,102
- Issue date Apr 16, 2013
- Research In Motion Limited
- Valentina Iqorevna Kramarenko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
User profiles
- Patent number 8,423,030
- Issue date Apr 16, 2013
- Research In Motion Limited
- Richard John George
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
DTMF signalling between mobile and server
- Patent number 8,346,235
- Issue date Jan 1, 2013
- Research in Motion Limited
- Zhigang Ruan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, system and apparatus for handling a call received at a mobi...
- Patent number 8,326,275
- Issue date Dec 4, 2012
- Research in Motion Limited
- Zhigang Ruan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Error correction for DTMF corruption on uplink
- Patent number 8,233,951
- Issue date Jul 31, 2012
- Research In Motion Limited
- Valentina Iqorevna Kramarenko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for generating runtime metadata for use in the de...
- Patent number 7,840,605
- Issue date Nov 23, 2010
- Research in Motion Limited
- Zhigang Ruan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method for generating runtime metadata for use in the de...
- Patent number 7,516,141
- Issue date Apr 7, 2009
- Research in Motion Limited
- Zhigang Ruan
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
ERROR CORRECTION FOR DTMF CORRUPTION ON UPLINK
- Publication number 20130217374
- Publication date Aug 22, 2013
- Research in Motion Limited
- Valentina Iqorevna Kramarenko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DTMF SIGNALLING BETWEEN MOBILE AND SERVER
- Publication number 20130079043
- Publication date Mar 28, 2013
- Research in Motion Limited
- ZHIGANG RUAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, SYSTEM AND APPARATUS FOR HANDLING A CALL RECEIVED AT A MOBI...
- Publication number 20130045727
- Publication date Feb 21, 2013
- Research in Motion Limited
- Zhigang RUAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ERROR CORRECTION FOR DTMF CORRUPTION ON UPLINK
- Publication number 20120258698
- Publication date Oct 11, 2012
- Research in Motion Limited
- Valentina Iqorevna Kramarenko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
User Profiles
- Publication number 20120009929
- Publication date Jan 12, 2012
- Research in Motion Limited
- Richard John George
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, SYSTEM AND APPARATUS FOR HANDLING A CALL RECEIVED AT A MOBI...
- Publication number 20110263234
- Publication date Oct 27, 2011
- Research in Motion Limited
- Zhigang Ruan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, SYSTEM AND APPARATUS FOR MANAGING TRANSPORTS
- Publication number 20110263246
- Publication date Oct 27, 2011
- Research in Motion Limited
- Zhigang RUAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, SYSTEM AND APPARATUS FOR MANAGING CALL HANDOFF
- Publication number 20110261784
- Publication date Oct 27, 2011
- Research in Motion Limited
- Ximing ZENG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ERROR CORRECTION FOR DTMF CORRUPTION ON UPLINK
- Publication number 20110183653
- Publication date Jul 28, 2011
- Research In Motion Limited
- Valentina Iqorevna Kramarenko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DTMF SIGNALLING BETWEEN MOBILE AND SERVER
- Publication number 20110183649
- Publication date Jul 28, 2011
- Research In Motion Limited
- ZHIGANG RUAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD FOR GENERATING RUNTIME METADATA FOR USE IN THE DE...
- Publication number 20090164972
- Publication date Jun 25, 2009
- Research in Motion Limited
- Zhigang Ruan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
System and method for generating runtime metadata for use in the de...
- Publication number 20070282889
- Publication date Dec 6, 2007
- Research in Motion Limited
- Zhigang Ruan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Systems and methods for continuous PIM synchronization between a ho...
- Publication number 20060218224
- Publication date Sep 28, 2006
- Anish Agrawal
- G06 - COMPUTING CALCULATING COUNTING

Zhigang Ruan

Person

Patents Grantslast 30 patents

Method, system and apparatus for managing transports

Error correction for DTMF corruption on uplink

DTMF signalling between mobile and server

Method, system and apparatus for handling a call received at a mobi...

Systems and methods for continuous PIM synchronization between a ho...

Error correction for DTMF corruption on uplink

User profiles

DTMF signalling between mobile and server

Method, system and apparatus for handling a call received at a mobi...

Error correction for DTMF corruption on uplink

System and method for generating runtime metadata for use in the de...

System and method for generating runtime metadata for use in the de...

Patents Applicationslast 30 patents

ERROR CORRECTION FOR DTMF CORRUPTION ON UPLINK

DTMF SIGNALLING BETWEEN MOBILE AND SERVER

METHOD, SYSTEM AND APPARATUS FOR HANDLING A CALL RECEIVED AT A MOBI...

ERROR CORRECTION FOR DTMF CORRUPTION ON UPLINK

User Profiles

METHOD, SYSTEM AND APPARATUS FOR HANDLING A CALL RECEIVED AT A MOBI...

METHOD, SYSTEM AND APPARATUS FOR MANAGING TRANSPORTS

METHOD, SYSTEM AND APPARATUS FOR MANAGING CALL HANDOFF

ERROR CORRECTION FOR DTMF CORRUPTION ON UPLINK

DTMF SIGNALLING BETWEEN MOBILE AND SERVER

SYSTEM AND METHOD FOR GENERATING RUNTIME METADATA FOR USE IN THE DE...

System and method for generating runtime metadata for use in the de...

Systems and methods for continuous PIM synchronization between a ho...