Patents by Inventor Ka Ian Yung
Ka Ian Yung 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: 9218953Abstract: A low profile USB flash memory device, and methods of forming same, are disclosed. The USB flash memory device includes an integrated circuit memory portion and a USB connector. The memory portion and the USB connector may be integrally formed on the same substrate. The USB flash memory device includes a substrate on which is mounted one or more flash memory die, a controller die, passive components and an LED for indicating when the memory is being accessed. In contrast to prior art USB memory devices which used TSOP packages mounted on a printed circuit board, the semiconductor die of the present invention are affixed to the substrate and wire bonded in a SIP configuration. Omitting the encapsulated TSOP packages allows a reduction in the overall thickness of the USB flash memory device.Type: GrantFiled: February 2, 2015Date of Patent: December 22, 2015Assignee: SanDisk Technologies Inc.Inventors: Suresh Upadhyayula, Robert C. Miller, Hem Takiar, Steven Sprouse, Ka Ian Yung
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Publication number: 20150155156Abstract: A low profile USB flash memory device, and methods of forming same, are disclosed. The USB flash memory device includes an integrated circuit memory portion and a USB connector. The memory portion and the USB connector may be integrally formed on the same substrate. The USB flash memory device includes a substrate on which is mounted one or more flash memory die, a controller die, passive components and an LED for indicating when the memory is being accessed. In contrast to prior art USB memory devices which used TSOP packages mounted on a printed circuit board, the semiconductor die of the present invention are affixed to the substrate and wire bonded in a SIP configuration. Omitting the encapsulated TSOP packages allows a reduction in the overall thickness of the USB flash memory device.Type: ApplicationFiled: February 2, 2015Publication date: June 4, 2015Applicant: SANDISK TECHNOLOGIES INC.Inventors: Suresh Upadhyayula, Robert C. Miller, Hem Takiar, Steven Sprouse, Ka Ian Yung
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Patent number: 8947883Abstract: A low profile USB flash memory device, and methods of forming same, are disclosed. The USB flash memory device includes an integrated circuit memory portion and a USB connector. The memory portion and the USB connector may be integrally formed on the same substrate. The USB flash memory device includes a substrate on which is mounted one or more flash memory die, a controller die, passive components and an LED for indicating when the memory is being accessed. In contrast to prior art USB memory devices which used TSOP packages mounted on a printed circuit board, the semiconductor die of the present invention are affixed to the substrate and wire bonded in a SIP configuration. Omitting the encapsulated TSOP packages allows a reduction in the overall thickness of the USB flash memory device.Type: GrantFiled: December 27, 2007Date of Patent: February 3, 2015Assignee: SanDisk Technologies Inc.Inventors: Suresh Upadhyayula, Robert C. Miller, Hem Takiar, Steven Sprouse, Ka Ian Yung
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Patent number: 8719660Abstract: Disclosed are apparatus and techniques for indicating health of a memory system having a controller and nonvolatile memory array. In one embodiment, the invention pertains to a method for indicating health of a removable memory system that is removably coupled with a host device. After the memory system is coupled with a host device, a first health status is output via an external electrical or mechanical interface of the memory system. One or more health metrics of the memory system are monitored. After a first predefined limit is reached with respect to the one or more health metrics, a second health status is output via the external electrical or mechanical interface of the memory system. The first health status differs from the second health status.Type: GrantFiled: December 20, 2011Date of Patent: May 6, 2014Assignee: SanDisk Technologies Inc.Inventors: Yong Peng, Ka Ian Yung, Xiangyang Miao, Arjun Hary
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Publication number: 20130159797Abstract: Disclosed are apparatus and techniques for indicating health of a memory system having a controller and nonvolatile memory array. In one embodiment, the invention pertains to a method for indicating health of a removable memory system that is removably coupled with a host device. After the memory system is coupled with a host device, a first health status is output via an external electrical or mechanical interface of the memory system. One or more health metrics of the memory system are monitored. After a first predefined limit is reached with respect to the one or more health metrics, a second health status is output via the external electrical or mechanical interface of the memory system. The first health status differs from the second health status.Type: ApplicationFiled: December 20, 2011Publication date: June 20, 2013Applicant: SANDISK TECHNOLOGIES INC.Inventors: Yong Peng, Ka Ian Yung, Xiangyang Miao, Arjun Hary
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Patent number: 8001304Abstract: A non-volatile storage device has first and second controllers that provide external access to non-volatile memory using different protocols. In response to a request from the first controller, the second controller retrieves parameters from the non-volatile memory and provides the retrieved parameters to the first controller. In one embodiment, the device parameters are USB descriptors, which may include a vendor ID, a product ID, a product string, and/or a serial number. The first controller may be a Universal Serial Bus (USB) card reader controller. Examples of the second controller include a Secure Digital (SD) controller, a CompactFlash (CF) controller, a MemoryStick controller, or a different type of controller that is able to provide external access to the non-volatile memory. The first controller provides the device parameters to a host during enumeration of the non-volatile storage device. The device parameters may be used to establish settings for the first controller.Type: GrantFiled: February 15, 2008Date of Patent: August 16, 2011Assignee: SanDisk Technologies Inc.Inventors: Ka Ian Yung, Steven Sprouse, Dhaval Parikh, Nathan Rapaport
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Patent number: 7921255Abstract: A memory controller for a memory card such as an SD card with an additional host interface such as a USB interface comprises a duplicate SD interface. Embodiments with two SD interfaces may also comprise a card reader controller chip that can be turned off by the memory controller when the USB interface is not needed. Incorporation of the additional SD interface in the controller allows for an economical or off the shelf card reader controller to be employed.Type: GrantFiled: December 21, 2007Date of Patent: April 5, 2011Assignee: SanDisk CorporationInventors: Steven Theodore Sprouse, Ka Ian Yung
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Publication number: 20090210637Abstract: A non-volatile storage device has first and second controllers that provide external access to non-volatile memory using different protocols. In response to a request from the first controller, the second controller retrieves parameters from the non-volatile memory and provides the retrieved parameters to the first controller. In one embodiment, the device parameters are USB descriptors, which may include a vendor ID, a product ID, a product string, and/or a serial number. The first controller may be a Universal Serial Bus (USB) card reader controller. Examples of the second controller include a Secure Digital (SD) controller, a CompactFlash (CF) controller, a MemoryStick controller, or a different type of controller that is able to provide external access to the non-volatile memory. The first controller provides the device parameters to a host during enumeration of the non-volatile storage device. The device parameters may be used to establish settings for the first controller.Type: ApplicationFiled: February 15, 2008Publication date: August 20, 2009Inventors: Ka Ian Yung, Steven Sprouse, Dhaval Parikh, Nathan Rapaport
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Publication number: 20090165294Abstract: A low profile USB flash memory device, and methods of forming same, are disclosed. The USB flash memory device includes an integrated circuit memory portion and a USB connector. The memory portion and the USB connector may be integrally formed on the same substrate. The USB flash memory device includes a substrate on which is mounted one or more flash memory die, a controller die, passive components and an LED for indicating when the memory is being accessed. In contrast to prior art USB memory devices which used TSOP packages mounted on a printed circuit board, the semiconductor die of the present invention are affixed to the substrate and wire bonded in a SIP configuration. Omitting the encapsulated TSOP packages allows a reduction in the overall thickness of the USB flash memory device.Type: ApplicationFiled: December 27, 2007Publication date: July 2, 2009Inventors: Suresh Upadhyayula, Robert C. Miller, Hem Takiar, Steven Sprouse, Ka Ian Yung
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Publication number: 20090164686Abstract: A memory controller for a memory card such as an SD card with an additional host interface such as a USB interface comprises a duplicate SD interface. Embodiments with two SD interfaces may also comprise a card reader controller chip that can be turned off by the memory controller when the USB interface is not needed. Incorporation of the additional SD interface in the controller allows for an economical or off the shelf card reader controller to be employed.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Inventors: Steven Theodore Sprouse, Ka Ian Yung
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Patent number: 7354314Abstract: A semiconductor device is disclosed including a sheathless connector having a grounding pin which protects against electrical shorts and damage upon a backwards insertion of the connector to a host device. If the electrical connector is inserted backwards, the grounding pin mates with the signal ground terminal of the socket, and avoids contact with the remaining terminals. As a result, the damage otherwise occurring upon a backwards insertion of prior art devices is avoided.Type: GrantFiled: December 29, 2006Date of Patent: April 8, 2008Assignee: SanDisk CorporationInventors: Steven Sprouse, Ka Ian Yung, Suresh Upadhyayula, Patricio Collantes