News Column

Researchers Submit Patent Application, "Data Storage Device and Method for Operating the Same", for Approval

July 22, 2014



By a News Reporter-Staff News Editor at Information Technology Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors BYUN, Eu Joon (Gyeonggi-do, KR); KIM, Kyeong Rho (Gyeonggi-do, KR); PARK, Se Chun (Seoul, KR), filed on December 11, 2013, was made available online on July 10, 2014.

The patent's assignee is SK hynix Inc.

News editors obtained the following quote from the background information supplied by the inventors: "Various embodiments of the present invention relate to an electronic apparatus. More specifically, the present invention relates to a data storage device and a method for operating the same.

"Semiconductor memory devices among data storage devices are generally classified as volatile memory devices and non-volatile memory devices.

"A volatile memory device has high write and read speeds, but when a power supply is cut off, stored data disappears. A non-volatile memory device has relatively low write and read speeds, but stored data retained even when the power supply is cut off. Accordingly, the non-volatile memory device is used to retain the stored data. The non-volatile memory device includes a read-only memory (ROM), a mask ROM (MROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a flash memory, a phase-change RAM (PRAM), a magnetic RAM (MRAM), a resistive RAM (RRAM), a ferroelectric RAM (FRAM), or the like. Flash memories are classified as a NOR type and a NAND type.

"Rash memories have an advantage of a RAM in that programming and erasure of data are free, and an advantage of the ROM in that stored data is retained even when the power supply is cut off. The flash memories have low power consumption, fast data access performance and a small size con pared with a conventional disk, such as a hard disk. Furthermore, the flash memories have an advantage of having strong physical shock-resistance and a low weight. The flash memories are widely used as a storage medium of portable electronic apparatuses such as a digital camera, a personal digital assistant (PDA), an MP3 player, or the like.

"Since the portable electronic apparatus such as a smart phone uses a battery with a limited capacity, it is necessary for the portable electronic apparatus to manage and use power efficiently. Accordingly, since a power supply or management unit in the portable electronic apparatus limits usable maximum power, the operating performance and duration of operation of the portable electronic apparatus are limited."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "The present invention is directed to a data storage device and a method for operating the same that is capable of improving operating performance.

"An embodiment according to the present invention provides a data storage device, including a plurality of memory chips connected in parallel with each other, a memory controller suitable for controlling the plurality of memory chips, and a power supply controller suitable for generating a control signal based on power supplied from a finite power supply source or an infinite power supply source, wherein the memory controller controls the number of memory chips operating in parallel in response to the control signal.

"The memory controller may control the memory chips to allow a first number of the memory chips to operate in parallel in response to a first control signal generated based on the power supplied from the finite power supply source, and may control the memory chips to allow a second number of the memory chips to operate in parallel in response to a second control signal generated based on the power supplied from the infinite power supply source, wherein the second number may be larger than the first number.

"The memory controller may control the memory chips to allow all the memory chips to operate in parallel in response to the second control signal.

"The memory controller may determine the first number based on a usable power limitation.

"The power supply controller may include a power supply unit suitable for supplying an operating voltage to the memory chips based on the power supplied from the finite power supply source or the infinite power supply source, and a controller suitable for generating the control signal based on the power supply.

"The infinite power supply source may include an AC adaptor or a USB.

"The finite power supply source may include a battery.

"Another embodiment of the present invention provides a data storage device, including a plurality of memory chips connected in parallel, and a memory controller suitable for controlling an operation of the memory chips, and controlling the number of memory chips operating in parallel based on power supplied from a finite power supply source or an infinite power supply source.

"The memory controller may control the memory chips to allow a first number of the memory chips to operate in parallel based on the power supplied from the finite power supply source, and control the memory chips to allow a second number of the memory chips to operate in parallel based on the power supplied from the infinite power supply source, wherein the second number may be larger than the first number.

"Still another embodiment of the present invention provides a method for operating a data storage device, including detecting whether a power supply is supplied from a finite power supply source or an infinite power supply source, and controlling a first number of memory chips among a plurality of memory chips to operate in parallel when the power supply is supplied from the finite power supply source, and controlling a second number, which may be larger than the first number, of the memory chips to operate in parallel when the power supply is supplied from the infinite power supply source.

BRIEF DESCRIPTION OF THE DRAWINGS

"The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

"FIG. 1 is a block diagram illustrating a data storage device according to an exemplary embodiment of the present invention;

"FIG. 2 is a circuit diagram illustrating a power supply controller shown in FIG. 1 according to an embodiment of the present invention;

"FIG. 3 is a block diagram illustrating a data storage device according to another exemplary embodiment of the present invention;

"FIG. 4 is a flowchart illustrating a method for operating a data storage device according to an exemplary embodiment of the present invention; and

"FIG. 5 is a flowchart illustrating a method for operating a data storage device according to another exemplary embodiment of the present invention."

For additional information on this patent application, see: BYUN, Eu Joon; KIM, Kyeong Rho; PARK, Se Chun. Data Storage Device and Method for Operating the Same. Filed December 11, 2013 and posted July 10, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=515&p=11&f=G&l=50&d=PG01&S1=20140703.PD.&OS=PD/20140703&RS=PD/20140703

Keywords for this news article include: SK hynix Inc, Information Technology, Information and Data Storage.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


For more stories covering the world of technology, please see HispanicBusiness' Tech Channel



Source: Information Technology Newsweekly


Story Tools






HispanicBusiness.com Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters