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).
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Patent number: 11856392Abstract: Methods, systems, and devices are described for concurrently performing handoff-related measurements for neighbor cells using multiple input multiple output (MIMO) antenna resources. In one example, a mobile device is in communication with a serving cell. Handoff-related measurements of first wireless signals from a first neighbor cell are performed. The first wireless signals are received at first MIMO antenna resources of a device. Handoff-related measurements of second wireless signals from a second neighbor cell are performed, as well. The second wireless signals are received at second MIMO antenna resources concurrently with the first wireless signals received at the first MIMO antenna resources. The first handoff-related measurements and the second handoff-related measurements may be performed during a scan interval. A type of handoff-related measurement to perform may be determined based on a determined length of the scan interval.Type: GrantFiled: June 1, 2021Date of Patent: December 26, 2023Assignee: QUALCOMM IncorporatedInventors: Steven Cheng, Remi Gurski, Kuo-Chun Lee, Tom Chin, Guangming Shi
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Patent number: 11687132Abstract: A crossflow air deflector part for directing airflow includes a front central spine, a first arcuate wall extending from the spine to a first back lateral edge of the airflow deflector, and a second arcuate wall extending from the spine to a second back lateral edge of the airflow deflector opposing the first back lateral edge. Such an airflow deflector can be implemented into a storage server, positioned between a laterally adjacent pair of data storage device (DSD) chambers and a pair of vertically stacked fans, such that the crossflow air deflector functions to direct airflow from one of the lateral DSD chambers into the lower fan and to direct airflow from the other lateral DSD chamber into the upper fan. Independent airflow control for each DSD chamber and each corresponding DSD is thereby provided.Type: GrantFiled: July 6, 2022Date of Patent: June 27, 2023Assignee: Western Digital Technologies, Inc.Inventors: Shailesh R Nayak, Joe Paul Moolanmoozha, Steven Cheng, Erik Silaprasay, Nicholas Maris
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Publication number: 20220350379Abstract: A crossflow air deflector part for directing airflow includes a front central spine, a first arcuate wall extending from the spine to a first back lateral edge of the airflow deflector, and a second arcuate wall extending from the spine to a second back lateral edge of the airflow deflector opposing the first back lateral edge. Such an airflow deflector can be implemented into a storage server, positioned between a laterally adjacent pair of data storage device (DSD) chambers and a pair of vertically stacked fans, such that the crossflow air deflector functions to direct airflow from one of the lateral DSD chambers into the lower fan and to direct airflow from the other lateral DSD chamber into the upper fan. Independent airflow control for each DSD chamber and each corresponding DSD is thereby provided.Type: ApplicationFiled: July 6, 2022Publication date: November 3, 2022Inventors: Shailesh R. Nayak, Joe Paul Moolanmoozha, Steven Cheng, Erik Silaprasay, Nicholas Maris
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Publication number: 20220244763Abstract: A crossflow air deflector part for directing airflow includes a front central spine, a first arcuate wall extending from the spine to a first back lateral edge of the airflow deflector, and a second arcuate wall extending from the spine to a second back lateral edge of the airflow deflector opposing the first back lateral edge. Such an airflow deflector can be implemented into a storage server, positioned between a laterally adjacent pair of data storage device (DSD) chambers and a pair of vertically stacked fans, such that the crossflow air deflector functions to direct airflow from one of the lateral DSD chambers into the lower fan and to direct airflow from the other lateral DSD chamber into the upper fan. Independent airflow control for each DSD chamber and each corresponding DSD is thereby provided.Type: ApplicationFiled: February 16, 2021Publication date: August 4, 2022Inventors: Shailesh R. Nayak, Joe Paul Moolanmoozha, Steven Cheng, Erik Silaprasay, Nicholas Maris
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Patent number: 11402884Abstract: A crossflow air deflector part for directing airflow includes a front central spine, a first arcuate wall extending from the spine to a first back lateral edge of the airflow deflector, and a second arcuate wall extending from the spine to a second back lateral edge of the airflow deflector opposing the first back lateral edge. Such an airflow deflector can be implemented into a storage server, positioned between a laterally adjacent pair of data storage device (DSD) chambers and a pair of vertically stacked fans, such that the crossflow air deflector functions to direct airflow from one of the lateral DSD chambers into the lower fan and to direct airflow from the other lateral DSD chamber into the upper fan. Independent airflow control for each DSD chamber and each corresponding DSD is thereby provided.Type: GrantFiled: February 16, 2021Date of Patent: August 2, 2022Assignee: Western Digital Technologies, Inc.Inventors: Shailesh R Nayak, Joe Paul Moolanmoozha, Steven Cheng, Erik Silaprasay, Nicholas Maris
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Publication number: 20210289407Abstract: Methods, systems, and devices are described for concurrently performing handoff-related measurements for neighbor cells using multiple input multiple output (MIMO) antenna resources. In one example, a mobile device is in communication with a serving cell. Handoff-related measurements of first wireless signals from a first neighbor cell are performed. The first wireless signals are received at first MIMO antenna resources of a device. Handoff-related measurements of second wireless signals from a second neighbor cell are performed, as well. The second wireless signals are received at second MIMO antenna resources concurrently with the first wireless signals received at the first MIMO antenna resources. The first handoff-related measurements and the second handoff-related measurements may be performed during a scan interval. A type of handoff-related measurement to perform may be determined based on a determined length of the scan interval.Type: ApplicationFiled: June 1, 2021Publication date: September 16, 2021Inventors: Steven CHENG, Remi GURSKI, Kuo-Chun LEE, Tom CHIN, Guangming SHI
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Publication number: 20200092773Abstract: Methods, systems, and devices are described for concurrently performing handoff-related measurements for neighbor cells using multiple input multiple output (MIMO) antenna resources. In one example, a mobile device is in communication with a serving cell. Handoff-related measurements of first wireless signals from a first neighbor cell are performed. The first wireless signals are received at first MIMO antenna resources of a device. Handoff-related measurements of second wireless signals from a second neighbor cell are performed, as well. The second wireless signals are received at second MIMO antenna resources concurrently with the first wireless signals received at the first MIMO antenna resources. The first handoff-related measurements and the second handoff-related measurements may be performed during a scan interval. A type of handoff-related measurement to perform may be determined based on a determined length of the scan interval.Type: ApplicationFiled: November 22, 2019Publication date: March 19, 2020Inventors: Steven Cheng, Remi Gurski, Kuo-Chun Lee, Tom Chin, Guangming Shi
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Patent number: 9459955Abstract: A data storage device includes a memory and a controller. The controller is configured to scramble data using a scramble key to produce scrambled data and to encode the scramble key to produce an encoded scramble key. The controller is further configured to store the encoded scramble key and the scrambled data to the memory.Type: GrantFiled: May 24, 2012Date of Patent: October 4, 2016Assignee: SANDISK TECHNOLOGIES LLCInventors: Daniel Edward Tuers, Steven Cheng
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Patent number: 9268386Abstract: Certain embodiments of the present disclosure relate to methods for improving a service flow of a mobile device based upon a different level of its available battery power. If the battery power availability is below a predefined threshold, then one or more power-saving techniques can be triggered that increase an air time of the mobile device and provide savings of power consumption at different rates using a different level of clock rate.Type: GrantFiled: January 9, 2009Date of Patent: February 23, 2016Assignee: QUALCOMM IncorporatedInventors: Steven Cheng, Kuo-Chun Lee, Guangming Carl Shi
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Patent number: 9204292Abstract: An open service provisioning method may be implemented by a terminal. The method may include receiving a customer's selection of a first-time network access provider and network service provider (NAP/NSP). The method may also include establishing a connection with the first-time NAP/NSP. The method may also include receiving information about possible other NAPs/NSPs while connected to the first-time NAP/NSP. The method may also include receiving the customer's selection of a home NAP/NSP. The method may also include assisting the customer to sign up for service with the home NAP/NSP. The method may further include establishing a connection with the home NAP/NSP.Type: GrantFiled: October 20, 2008Date of Patent: December 1, 2015Assignee: QUALCOMM IncorporatedInventors: Guangming Carl Shi, Kuo-Chun Lee, Steven Cheng, Isaac Ta-yan Siu
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Patent number: 8948069Abstract: Certain embodiments of the present disclosure improve a robustness of some critical MAC management response massages transmitted from a base station (BS) to a mobile station (MS). In this way, a reliability of transmission can be increased and a messaging failure that results in out of sync state between the MS and the BS can be avoided.Type: GrantFiled: January 9, 2009Date of Patent: February 3, 2015Assignee: QUALCOMM IncorporatedInventors: Steven Cheng, Guangming Carl Shi, Tom Chin, Isaac Ta-yan Siu, Kuo-Chun Lee
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Patent number: 8788889Abstract: 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: GrantFiled: November 23, 2011Date of Patent: July 22, 2014Assignee: SanDisk Technologies Inc.Inventors: Seungjune Jeon, Steven Cheng
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Patent number: 8738997Abstract: Certain embodiments of the present disclosure control whether or not certain protocol stack operation are performed in a hardware (HW) protocol stack accelerator based on ARQ/HARQ re-transmission rate. Latency penalties associated with using the HW accelerator are typically higher than the data movement overhead when this data does not need to be processed by the HW accelerator, such as when a re-transmission error occurs. According to certain embodiments, the HW accelerator is activated if the ARQ/HARQ re-transmission rate is below a threshold value. Otherwise, if the ARQ/HARQ re-transmission rate is above a threshold, at least a portion of the HW accelerator may be de-activated, which may reduce overhead associated with moving data between the protocol stack and the HW accelerator.Type: GrantFiled: January 22, 2009Date of Patent: May 27, 2014Assignee: QUALCOMM IncorporatedInventor: Steven Cheng
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Patent number: 8683297Abstract: 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: GrantFiled: November 2, 2011Date of Patent: March 25, 2014Assignee: SanDisk Technologies Inc.Inventors: Seungjune Jeon, Steven Cheng
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Patent number: 8654737Abstract: Techniques for an MS to establish one or more default service flows, after entering a WiMAX network are provided. The techniques presented herein may enable the MS to maintain said one or more default service flows during the sleep mode. The one or more default service flow may be utilized in quickly establishing a connection between a WiMAX BS and the MS following the sleep mode.Type: GrantFiled: January 23, 2009Date of Patent: February 18, 2014Assignee: QUALCOMM IncorporatedInventors: Guangming Carl Shi, Kuo-Chun Lee, Tom Chin, Steven Cheng
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Patent number: 8625484Abstract: 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: GrantFiled: February 5, 2009Date of Patent: January 7, 2014Assignee: QUALCOMM IncorporatedInventors: Steven Cheng, Patrick Lim
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Publication number: 20130315397Abstract: A data storage device includes a memory and a controller. The controller is configured to scramble data using a scramble key to produce scrambled data and to encode the scramble key to produce an encoded scramble key. The controller is further configured to store the encoded scramble key and the scrambled data to the memory.Type: ApplicationFiled: May 24, 2012Publication date: November 28, 2013Applicant: SANDISK TECHNOLOGIES INC.Inventors: DANIEL EDWARD TUERS, STEVEN CHENG
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Patent number: 8554205Abstract: 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: GrantFiled: October 23, 2008Date of Patent: October 8, 2013Assignee: QUALCOMM IncorporatedInventors: Guangming Carl Shi, Kuo-Chun Lee, Steven Cheng, Isaac Ta-yan Siu
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Patent number: 8532681Abstract: 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: GrantFiled: October 20, 2008Date of Patent: September 10, 2013Assignee: QUALCOMM IncorporatedInventors: Tom Chin, Steven Cheng, Kuo-Chun Lee, Guangming Carl Shi
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Patent number: 8488572Abstract: 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: GrantFiled: September 17, 2008Date of Patent: July 16, 2013Assignee: QUALCOMM IncorporatedInventors: Steven Cheng, Tom Chin