Patents by Inventor Steven Cheng

Steven Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8554205
    Abstract: A method for facilitating dynamic service-based system selection and determination may be implemented by a communications device. The method may include presenting system selection options to a user based on information that is received about Network Access Providers (NAPs) and Network Service Providers (NSPs). The method may also include receiving user input about the system selection options. The user may be permitted to provide input about specific services offered by specific NSPs. The method may also include determining user preferences regarding system selection based on the user input. The method may also include creating a preferred roaming list (PRL) based on the user preferences. The method may further include using the PRL to scan for available networks and channels and to find serving systems.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: October 8, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Guangming Carl Shi, Kuo-Chun Lee, Steven Cheng, Isaac Ta-yan Siu
  • Patent number: 8532681
    Abstract: In accordance with a method for implementing Short Message Service (SMS) in a WiMAX network, a mobile station may send a mobile station SMS request message to a base station. The mobile station SMS request message may include mobile-originated SMS data. In response, the base station may send a base station SMS response message back to the mobile station. For mobile-terminated SMS data, the base station may send a base station SMS request message to the mobile station. The base station SMS request message may include the mobile-terminated SMS data. In response, the mobile station may send a mobile station SMS response message to the base station. Ranging procedures and medium access control (MAC) management messages may be used to allocate bandwidth for the various messages.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: September 10, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Tom Chin, Steven Cheng, Kuo-Chun Lee, Guangming Carl Shi
  • Patent number: 8488356
    Abstract: A memory system includes a status circuit having a common status node electrically connected to a respective status pad of each of a plurality of memory chips. The memory system also includes a plurality of resistors disposed within the status circuit to define a voltage divider network for generating different voltage levels at the common status node. Each of the different voltage levels indicates a particular operational state combination of the plurality of memory chips. Also, each of the plurality of memory chips is either in a first operational state or a second operational state. Additionally, the different voltage levels are distributed within a voltage range extending from a power supply voltage level to a reference ground voltage level.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: July 16, 2013
    Assignee: SanDisk Technologies Inc.
    Inventor: Steven Cheng
  • Patent number: 8488572
    Abstract: Certain embodiments of the present disclosure provide a method for wireless communications by a multi-mode mobile station that supports communications with a plurality of radio access technologies (RATs). The RATs may include at least one short range RAT and at least one long range RAT. The method generally includes establishing a first connection with a first network via a short range RAT supported by the mobile station, taking signal quality measurements for one or more long range RAT supported by the mobile station, and transmitting the signal quality measurements via the first connection.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: July 16, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Steven Cheng, Tom Chin
  • Publication number: 20130132798
    Abstract: An aliasing module is defined and connected to receive a first bit stream to be transmitted over a data bus from a memory to an external controller of the memory. The aliasing module is defined and connected to alias the first bit stream as a second bit stream and transmit the second bit stream over the data bus in lieu of the first bit stream. A de-aliasing module is defined and connected to receive the second bit stream from the data bus at the external controller. The de-aliasing module is defined and connected to de-alias the received second bit stream back to the first bit stream and provide the first bit stream to the external controller for processing.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 23, 2013
    Applicant: SanDisk Technologies Inc.
    Inventors: Seungjune Jeon, Steven Cheng
  • Publication number: 20130111279
    Abstract: A method includes generating a replacement default read threshold at least partially based on a default read threshold and on an updated read threshold. The method also includes sending the replacement default read threshold to the memory.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 2, 2013
    Applicant: SANDISK TECHNOLOGIES INC.
    Inventors: SEUNGJUNE JEON, STEVEN CHENG
  • Patent number: 8351467
    Abstract: A subscriber station may receive a WiMAX connection identifier (CID) scheduling message from a 2G/3G network. The WiMAX CID scheduling message may include scheduling information that indicates when Multimedia Broadcast Multicast Service (MBMS) data for the subscriber station will be transmitted from a WiMAX network. The subscriber station may receive the MBMS data from the WiMAX network in accordance with the scheduling information.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: January 8, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Steven Cheng, Tom Chin
  • Patent number: 8284705
    Abstract: This application provides techniques for a mobile station (MS) to determine whether a base station (BS) successfully receives a response to a BS request for the MS to enter an idle mode.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: October 9, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Fangqi Hu, Kuo-Chun Lee, Guangming Shi, Tom Chin, Patrick Lim, Steven Cheng
  • Patent number: 8270327
    Abstract: Certain embodiments of the present disclosure propose a technique that may be utilized to accelerate the processing of MAC management messages by an MS, allowing the MS to return to a lower power state sooner, thereby conserving power. An indication of whether or not data bursts in a downlink (DL) sub-frame contain MAC management messages may allow the MS to avoid needlessly processing of data bursts and return to a low power state sooner.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: September 18, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Steven Cheng, Patrick Lim, Fangqi Hu
  • Patent number: 8255010
    Abstract: Methods and apparatus for conserving battery power in a mobile device for wireless communication by dynamically adjusting the clock frequency and/or the voltage of the device's processor according to the Media Access Control (MAC) layer state are provided. By using a higher clock frequency and/or a higher voltage for a normal operation state with large amounts of data traffic and lower clock frequencies and/or lower voltages for other MAC layer states (e.g., acquisition, network entry, and sleep/idle states), battery power may be conserved, thereby extending the time in which the device may operate between battery charging cycles.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: August 28, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Steven Cheng, Guangming Carl Shi, Tom Chin
  • Publication number: 20120182780
    Abstract: A memory system includes a status circuit having a common status node electrically connected to a respective status pad of each of a plurality of memory chips. The memory system also includes a plurality of resistors disposed within the status circuit to define a voltage divider network for generating different voltage levels at the common status node. Each of the different voltage levels indicates a particular operational state combination of the plurality of memory chips. Also, each of the plurality of memory chips is either in a first operational state or a second operational state. Additionally, the different voltage levels are distributed within a voltage range extending from a power supply voltage level to a reference ground voltage level.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 19, 2012
    Applicant: SanDisk Technologies Inc.
    Inventor: Steven Cheng
  • Patent number: 8171175
    Abstract: By controlling whether operations are offloaded to a protocol stack hardware accelerator as a function of data rate, power consumption may be reduced, for example, when data rates result in fragmented or segmented data not suitable for processing by the stack hardware accelerator.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: May 1, 2012
    Assignee: Qualcomm Incorporated
    Inventors: Steven Cheng, Kuo-Chun Lee, Tom Chin
  • Patent number: 8144496
    Abstract: A memory system includes a status circuit having a common status node electrically connected to a respective status pad of each of a plurality of memory chips. The memory system also includes a plurality of resistors disposed within the status circuit to define a voltage divider network for generating different voltage levels at the common status node. Each of the different voltage levels indicates a particular operational state combination of the plurality of memory chips. Also, each of the plurality of memory chips is either in a first operational state or a second operational state. Additionally, the different voltage levels are distributed within a voltage range extending from a power supply voltage level to a reference ground voltage level.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: March 27, 2012
    Assignee: SanDisk Technologies Inc.
    Inventor: Steven Cheng
  • Patent number: 7999740
    Abstract: A method for efficiently performing ranging in a wireless communication network may be implemented by a mobile station. The method may include sending a ranging code to a base station. The method may also include receiving a ranging response message from the base station. The method may also include determining whether a ranging failure condition is satisfied. The ranging failure condition may relate to something other than a duration of time. The method may further include re-sending the ranging code to the base station if the ranging failure condition is satisfied.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: August 16, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Tom Chin, Kuo-Chun Lee, Steven Cheng, Ayman Fawzy Naguib
  • Publication number: 20110045849
    Abstract: This application provides techniques for a mobile station (MS) to determine whether a base station (BS) successfully receives a response to a BS request for the MS to enter an idle mode.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 24, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Fangqi Hu, Kuo-Chun Lee, Guangming Shi, Tom Chin, Patrick Lim, Steven Cheng
  • Publication number: 20100328983
    Abstract: A memory system includes a status circuit having a common status node electrically connected to a respective status pad of each of a plurality of memory chips. The memory system also includes a plurality of resistors disposed within the status circuit to define a voltage divider network for generating different voltage levels at the common status node. Each of the different voltage levels indicates a particular operational state combination of the plurality of memory chips. Also, each of the plurality of memory chips is either in a first operational state or a second operational state. Additionally, the different voltage levels are distributed within a voltage range extending from a power supply voltage level to a reference ground voltage level.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: SanDisk Corp.
    Inventor: Steven Cheng
  • Publication number: 20100265934
    Abstract: Certain embodiments of the present disclosure provide techniques for bypassing the DCD/UCD message reception step in the network entry procedure in WiMAX systems by using DCD/UCD messages that are stored in a nonvolatile memory inside a mobile station.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 21, 2010
    Applicant: QUALCOMM INCORPORATED
    Inventors: Chun Woo Lee, Remi Gurski, Steven Cheng, Patrick Lim
  • Publication number: 20100202336
    Abstract: A subscriber station may receive a WiMAX connection identifier (CID) scheduling message from a 2G/3G network. The WiMAX CID scheduling message may include scheduling information that indicates when Multimedia Broadcast Multicast Service (MBMS) data for the subscriber station will be transmitted from a WiMAX network. The subscriber station may receive the MBMS data from the WiMAX network in accordance with the scheduling information.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 12, 2010
    Applicant: QUALCOMM INCORPORATED
    Inventors: Steven Cheng, Tom Chin
  • Publication number: 20100195555
    Abstract: A base station (BS) may determine a fixed modulation scheme, a fixed PDU payload size, and a fixed number of PDUs per downlink burst for transmission of multicast data to subscriber stations. The BS may allocate downlink bursts to deliver the multicast data to the subscriber stations via PDUs using the fixed modulation scheme, the fixed PDU payload size, and the fixed number of PDUs per DL burst. A subscriber station (SS) may bypass the processing of multicast frames if the SS does not belong to any multicast groups. An SS may search for multicast connection identifiers (CIDs) in DL MAP IEs in multicast frames if the SS belongs to at least one multicast group. The SS may bypass the parsing of a PDU's MAC header within a corresponding downlink burst in the multicast frame in response to identifying a multicast CID in a DL-MAP IE in a multicast frame.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 5, 2010
    Applicant: QUALCOMM INCORPORATED
    Inventors: Steven Cheng, Patrick Lim
  • Publication number: 20100191861
    Abstract: By controlling whether operations are offloaded to a protocol stack hardware accelerator as a function of data rate, power consumption may be reduced, for example, when data rates result in fragmented or segmented data not suitable for processing by the stack hardware accelerator.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 29, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Steven Cheng, Kuo-Chun Lee, Tom Chin