Dhaval H Parikh

US Patent:

7416419, Aug 26, 2008

Filed:

Aug 16, 2006

Appl. No.:

11/465049

Inventors:

Patricio Collantes, Jr. - San Jose CA, US
Robert C. Miller - San Jose CA, US
Steven T. Sprouse - San Jose CA, US
Dhaval Parikh - Santa Clara CA, US

Assignee:

Sandisk Corporation - Milpitas CA

International Classification:

H01R 12/00

US Classification:

439 761

Abstract:

A Universal Serial Bus flash memory unit having an electrically conductive housing includes a spring that provides an electrically conductive, low-resistance pathway between the housing and the metal shell of the Universal Serial Bus connector so that electrostatic charge can directly discharge from the housing to the metal shell instead of discharging through electronic components within the housing.

US Patent:

7581967, Sep 1, 2009

Filed:

Aug 16, 2006

Appl. No.:

11/465045

Inventors:

Patricio Collantes, Jr. - San Jose CA, US
Robert C. Miller - San Jose CA, US
Steven T. Sprouse - San Jose CA, US
Dhaval Parikh - Santa Clara CA, US

Assignee:

Sandisk Corporation - Milpitas CA

International Classification:

H01R 13/44

US Classification:

439131, 439 95, 43960727

Abstract:

A Universal Serial Bus flash memory unit having an electrically conductive housing includes a spring that provides an electrically conductive, low-resistance pathway between the housing and the metal shell of the Universal Serial Bus connector so that electrostatic charge can directly discharge from the housing to the metal shell instead of discharging through electronic components within the housing.

US Patent:

7599241, Oct 6, 2009

Filed:

Aug 6, 2007

Appl. No.:

11/890734

Inventors:

Steven T. Sprouse - San Jose CA, US
Dhaval Parikh - Santa Clara CA, US
Arjun Kapoor - San Francisco CA, US

Assignee:

SanDisk Corporation - Milpitas CA

International Classification:

G11C 5/14

US Classification:

365228, 365226, 365229, 365206

Abstract:

In a non-volatile memory (NVM) device having a controller and a non-volatile memory array controlled by the controller a voltage supervisor circuit monitors an output of a voltage supply powering the NVM device. The voltage supervisor circuit may be part of the NVM device or coupled to it. The voltage supervisor circuit is configured to assert a “low-voltage” signal responsive to detecting the output of the voltage supply powering the NVM device dropping below a predetermined value. The controller is configured to write data into the memory array while the “low-voltage” signal is deasserted and to suspend writing data while the “low-voltage” signal is asserted. In response to assertion of the “low-voltage” signal, the controller completes a write cycle/program operation, if pending, and prevents any additional write cycles/program operation(s) during assertion of the “low-voltage” signal.

US Patent:

7697325, Apr 13, 2010

Filed:

Sep 24, 2007

Appl. No.:

11/903764

Inventors:

Steven T. Sprouse - San Jose CA, US
Dhaval Parikh - Santa Clara CA, US
Sukhminder S. Lobana - Fremont CA, US
Shai Traister - San Jose CA, US

Assignee:

SanDisk Corporation - Milpitas CA

International Classification:

G11C 16/04

US Classification:

36518503, 365236, 36518521, 36518511

Abstract:

A method and apparatus for storing an n-bit (for n>=2) data block in an array of non-volatile memory cells utilizes a predetermined n+k-bit (for k>=1) encoding selected to reduce the number of programmed cells required to store the n-bit data block.

US Patent:

7774027, Aug 10, 2010

Filed:

Sep 28, 2006

Appl. No.:

11/536155

Inventors:

Dhaval Parikh - Santa Clara CA, US
Rajeev Nagabhirava - Santa Clara CA, US

Assignee:

SanDisk Corporation - CA

International Classification:

H04B 1/38

US Classification:

455557, 455 412

Abstract:

A portable flash memory drive includes a Bluetooth controller with only a subset of the layers of a Bluetooth stack necessary for operation. This enables usage of a generic Bluetooth controller in the flash drive. Specific configuration for profiles and other aspects of Bluetooth communication are handled by upper layers of the Bluetooth stack that are stored in the flash memory of the drive and thereafter loaded into a host computer. The configuration and make up of the Bluetooth stack can therefore be easily updated and changed when desired.

US Patent:

7801561, Sep 21, 2010

Filed:

Sep 28, 2006

Appl. No.:

11/536095

Inventors:

Dhaval Parikh - Santa Clara CA, US
Rajeev Nagabhirava - Santa Clara CA, US

Assignee:

SanDisk Corporation - Milpitas CA

International Classification:

H04B 1/38

US Classification:

455557, 455 412

Abstract:

A portable flash memory drive includes a Bluetooth controller with only a subset of the layers of a Bluetooth stack necessary for operation. This enables usage of a generic Bluetooth controller in the flash drive. Specific configuration for profiles and other aspects of Bluetooth communication are handled by upper layers of the Bluetooth stack that are stored in the flash memory of the drive and thereafter loaded into a host computer. The configuration and make up of the Bluetooth stack can therefore be easily updated and changed when desired.

US Patent:

7810235, Oct 12, 2010

Filed:

Dec 29, 2006

Appl. No.:

11/618292

Inventors:

Steven Sprouse - San Jose CA, US
Patricio Collantes - San Jose CA, US
Dhaval Parikh - Santa Clara CA, US

Assignee:

SanDisk Corporation - Milpitas CA

International Classification:

H01R 43/20

US Classification:

29876, 29874, 439 95

Abstract:

A method is disclosed for making a connector for preventing electrostatic discharge during connection of a USB-type connector. The connector includes a grounding clip provided within a recess formed at least partially down into the surface of the second level of the base block. The grounding clip may have a proximal end affixed to a proximal end of a signal ground pin of the plurality of signal pins, though the grounding clip and signal ground pin may be coupled at other locations along their lengths. The connector including the grounding clip may be affixed to a semiconductor device. A portion of the grounding clip is provided at a height above the surface of the base block such that, when a shroud is slid around the connector, the shroud engages and remains in contact with the grounding clip. Accordingly, any electrostatic discharge built up in the shroud travels from the shroud, through the ESD grounding clip, to the signal ground pin where it is harmlessly dissipated.

US Patent:

7898091, Mar 1, 2011

Filed:

Oct 2, 2007

Appl. No.:

11/906582

Inventors:

Steven T. Sprouse - San Jose CA, US
Dhaval Parikh - Santa Clara CA, US
Michael McCarthy - San Jose CA, US

Assignee:

SanDisk Corporation - Milpitas CA

International Classification:

H01L 23/48

US Classification:

257777, 257686, 257E25005, 257E25006, 257E25013, 257E25021, 257E25027, 257E23085

Abstract:

In a first embodiment, an apparatus and a method of fabrication thereof includes a substrate, a controller formed on a first integrated circuit (IC) die and disposed on the substrate, a second IC die embodying circuitry configured to enable communication between the controller and an external device, first I/O pads disposed on the first IC die, second I/O pads disposed on the second IC die, wire bonding interconnections coupling at least one of the first I/O pads with at least one of the second I/O pads, and a memory array formed on a third IC die and configured to enable communication with the controller. In a second embodiment the memory array is alternatively integrated into the first IC die.