Patents by Inventor Jin-Woo Roh
Jin-Woo Roh 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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Publication number: 20240080228Abstract: A data receiving device may include a dummy stage block. The dummy stage block may include m dummy stages, wherein m is a natural number greater than or equal to two. Each of the m dummy stages may be configured to remove inter-symbol interference (ISI) from a dummy input signal using dummy coefficient information to generate a dummy output signal free of the ISI. Each of the m dummy stages may be further configured to output the dummy output signal. A normal stage block may include n normal stages, wherein n is a natural number greater than or equal to two. Each of the n normal stages may be configured to remove ISI from an input signal using coefficient information to generate an output signal free of the ISI and may be further configured to output the output signal.Type: ApplicationFiled: April 13, 2023Publication date: March 7, 2024Inventors: Jin Ook JUNG, Jae Woo PARK, Myoung Bo KWAK, Young Min KU, Kyoung Jun ROH, Jung Hwan CHOI
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Patent number: 10127051Abstract: An electronic device includes a first processor; and a second processor; and a third processor. The second processor is configured to detect an event, select one of the first and third processors to perform one or more operations associated with the event, and cause the selected processor to perform the one or more operations.Type: GrantFiled: November 6, 2015Date of Patent: November 13, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Woo-Cheol Lee, Jin-Woo Roh, Moo-Young Kim, Dong-Wook Suh
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Publication number: 20160132369Abstract: An electronic device includes a first processor; and a second processor; and a third processor. The second processor is configured to detect an event, select one of the first and third processors to perform one or more operations associated with the event, and cause the selected processor to perform the one or more operations.Type: ApplicationFiled: November 6, 2015Publication date: May 12, 2016Inventors: Woo-Cheol LEE, Jin-Woo ROH, Moo-Young KIM, Dong-Wook SUH
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Patent number: 9131442Abstract: An apparatus and a method for reducing power consumption in a wireless communication system are provided. The apparatus includes an antenna, a Radio Frequency (RF) module, a first amplifier, an external power amplifier, and a controller. The RF module converts a baseband transmission signal to an RF signal. The first amplifier amplifies power of the RF signal inside the RF module. The external power amplifier amplifies power of an output signal of the first amplifier. When a transmission power level of a transmission signal is equal to or less than a maximum output level of the first amplifier, the controller controls to transmit the transmission signal amplified by the first amplifier via the antenna. When the transmission power level of the transmission signal is equal to or greater than the maximum output level of the first amplifier, the controller controls to transmit a transmission signal amplified by the external power amplifier via the antenna.Type: GrantFiled: October 27, 2014Date of Patent: September 8, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Yun Hwang, Jin-Woo Roh
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Publication number: 20150045087Abstract: An apparatus and a method for reducing power consumption in a wireless communication system are provided. The apparatus includes an antenna, a Radio Frequency (RF) module, a first amplifier, an external power amplifier, and a controller. The RF module converts a baseband transmission signal to an RF signal. The first amplifier amplifies power of the RF signal inside the RF module. The external power amplifier amplifies power of an output signal of the first amplifier. When a transmission power level of a transmission signal is equal to or less than a maximum output level of the first amplifier, the controller controls to transmit the transmission signal amplified by the first amplifier via the antenna. When the transmission power level of the transmission signal is equal to or greater than the maximum output level of the first amplifier, the controller controls to transmit a transmission signal amplified by the external power amplifier via the antenna.Type: ApplicationFiled: October 27, 2014Publication date: February 12, 2015Inventors: Sang-Yun HWANG, Jin-Woo ROH
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Patent number: 8903439Abstract: An apparatus and method are provided for communicating in a network in which interference exists between wireless communication systems. The apparatus includes multiple transceivers for individually communicating with base stations of the multiple wireless communication systems; and a controller for negotiating with at least one of the base stations, setting a non-communication period with a negotiated base station, and communicating with the negotiated base station during the non-communication period, based on whether an interference level between wireless signals communicated through the multiple transceivers falls within a predetermined range.Type: GrantFiled: October 4, 2011Date of Patent: December 2, 2014Assignee: Samsung Electronics Co., LtdInventors: Sang-Yun Hwang, Jin-Woo Roh, Seo-Goo Lee
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Patent number: 8874161Abstract: An apparatus and a method for reducing power consumption in a wireless communication system are provided. The apparatus includes an antenna, a Radio Frequency (RF) module, a first amplifier, an external power amplifier, and a controller. The RF module converts a baseband transmission signal to an RF signal. The first amplifier amplifies power of the RF signal inside the RF module. The external power amplifier amplifies power of an output signal of the first amplifier. When a transmission power level of a transmission signal is equal to or less than a maximum output level of the first amplifier, the controller controls to transmit the transmission signal amplified by the first amplifier via the antenna. When the transmission power level of the transmission signal is equal to or greater than the maximum output level of the first amplifier, the controller controls to transmit a transmission signal amplified by the external power amplifier via the antenna.Type: GrantFiled: August 27, 2012Date of Patent: October 28, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Yun Hwang, Jin-Woo Roh
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Patent number: 8785018Abstract: Disclosed herein is a battery pack case. An upper cover, a lower support base and each side cover form at least one seating depression extending in a sideways direction. Each of the front and rear covers has band locking depressions at positions corresponding to the seating depressions. Each band locking depression has a shape corresponding to a related one of fixing bands. Each fixing band includes a band body which is made of rubber, fabric or plastic and extends a predetermined length in one direction, and a locking protrusion provided on each of opposite ends of the band body. The locking protrusion has a structure corresponding to a related one of the band locking depressions. The locking protrusions of the fixing bands are inserted into the corresponding band locking depressions, thus fastening the elements including the front cover and the rear cover together.Type: GrantFiled: June 19, 2012Date of Patent: July 22, 2014Assignee: Global Battery Co., Ltd.Inventors: Gueng Hyun Nam, Tae Sin Kim, Duck Jun Lee, Jin Woo Roh, Min Ho Jang
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Patent number: 8570878Abstract: A packet decoding method and apparatus of a digital broadcast system is provided for improving decoding performance by reordering blocks to be decoded and adjusting a number of decoding iterations of each block. A packet decoding method of the present invention includes measuring Signal-to-Noise Ratios (SNRs) of individual packets within a slot, determining a decoding order of the packets according to the SNRs, and decoding the packets in the decoding order. The decoding method and apparatus of a digital broadcast system according to the present invention performs decoding on the packets having the highest channel estimation performance first with reduced number of decoding iterations and reallocates the saved number of decoding iterations to remaining packets having relatively low channel estimation performance, thereby improving the decoding performance of the received packets.Type: GrantFiled: September 7, 2010Date of Patent: October 29, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung Min Kim, Seo Goo Lee, Jin Woo Roh, Byung Tae Kang
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Patent number: 8539268Abstract: An apparatus and a method for controlling power consumption in a system having a plurality of modems are provided. In the method, whether an interrupt is generated in each modem is detected. An amount of current consumption of the system at a processing point of the generated interrupt is determined. The amount of current consumption of the system is compared with a threshold, so that the processing point of the generated interrupt is controlled.Type: GrantFiled: November 12, 2009Date of Patent: September 17, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: In-Chun Lim, Byung-Tae Kang, Jin-Woo Roh
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Publication number: 20130224541Abstract: Disclosed herein is a battery pack case. An upper cover, a lower support base and each side cover form at least one seating depression extending in a sideways direction. Each of the front and rear covers has band locking depressions at positions corresponding to the seating depressions. Each band locking depression has a shape corresponding to a related one of fixing bands. Each fixing band includes a band body which is made of rubber, fabric or plastic and extends a predetermined length in one direction, and a locking protrusion provided on each of opposite ends of the band body. The locking protrusion has a structure corresponding to a related one of the band locking depressions. The locking protrusions of the fixing bands are inserted into the corresponding band locking depressions, thus fastening the elements including the front cover and the rear cover together.Type: ApplicationFiled: June 19, 2012Publication date: August 29, 2013Applicant: GLOBAL BATTERY CO., LTD.Inventors: Gueng Hyun NAM, Tae Sin KIM, Duck Jun LEE, Jin Woo ROH, Min Ho JANG
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Publication number: 20130053089Abstract: An apparatus and a method for reducing power consumption in a wireless communication system are provided. The apparatus includes an antenna, a Radio Frequency (RF) module, a first amplifier, an external power amplifier, and a controller. The RF module converts a baseband transmission signal to an RF signal. The first amplifier amplifies power of the RF signal inside the RF module. The external power amplifier amplifies power of an output signal of the first amplifier. When a transmission power level of a transmission signal is equal to or less than a maximum output level of the first amplifier, the controller controls to transmit the transmission signal amplified by the first amplifier via the antenna. When the transmission power level of the transmission signal is equal to or greater than the maximum output level of the first amplifier, the controller controls to transmit a transmission signal amplified by the external power amplifier via the antenna.Type: ApplicationFiled: August 27, 2012Publication date: February 28, 2013Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Sang-Yun HWANG, Jin-Woo ROH
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Patent number: 8291278Abstract: A receiving method and apparatus for combining Hybrid Automatic Repeat Request (HARQ) data in a wireless communication system are provided. More particularly, a method and apparatus for increasing HARQ combining capability while effectively using a limited-sized memory are provided. The receiving method for combining the HARQ data includes predicting a maximum size of currently receivable data, converting HARQ data received from a transmitting end into Log Likelihood Ratio (LLR) information, determining whether the received HARQ data is retransmitted data, if the determination result shows that the HARQ data is not the retransmitted data, determining whether the converted LLR information is compressed according to the predicted maximum data size, and storing the converted LLR information in a memory according to the determination result on whether compression is necessary.Type: GrantFiled: July 7, 2009Date of Patent: October 16, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Sang Cho, Byung-Tae Kang, Jin-Woo Roh
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Patent number: 8208567Abstract: An apparatus and method for reducing a Peak-to-Average Power Ratio (PAPR) are provided. The apparatus includes a gain processor for multiplying time signals in paths by gains set for respective paths, a delay processor for delaying gain-multiplied signals in second to last paths except for a first path by time delays set for respective second to last paths, a summer for summing the gain-multiplied signal for the first path received from the gain processor and the delayed signals received from the delay processor, a PAPR processor for measuring a PAPR of the summed signal received from the summer, for comparing the measured PAPR with a target PAPR, and for requesting one or more changes of at least one of the gain and time delay of each path, and a gain delay controller for changing the at least one of the gain and the time delay of each path according to the request received from the PAPR processor and for controlling the gain processor and the delay processor according to the change.Type: GrantFiled: October 16, 2008Date of Patent: June 26, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hae-Dong Yeon, In-Hyoung Kim, Jin-Woo Roh, Sung-Soo Kim, Bong-Gee Song, Jong-Han Lim
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Patent number: 8205128Abstract: An apparatus and a method for Hybrid Automatic Repeat reQuest (HARQ) in a wireless communication system are provided. A receiver includes a Media Access Control (MAC) layer part for error-checking each MAC Packet Data Units (PDUs) extracted from a physical layer burst, and generating HARQ combination control information according to a result of the error check; a receiving part for receiving a retransmit burst; and a combiner for selecting one or more Forward Error Correction (FEC) blocks from the retransmit burst according to the HARQ combination control information, and HARQ-combining the selected one or more FEC blocks.Type: GrantFiled: October 8, 2008Date of Patent: June 19, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-Chul Yoo, Jin-Woo Roh, Bong-Gee Song, Dong-Min Kim, Jung-Ho Lee
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Patent number: 8190298Abstract: An apparatus and a method for controlling a power in a Network on Chip (NoC) are provided. The apparatus includes a storage for storing status information of links interconnecting processing elements (PEs), link configuration information for establishing paths between the PEs, and voltage and clock information of the links according to a bandwidth; and a control device for establishing paths between the PEs to transmit data by checking the link configuration information in the storage, and controlling the voltage and the clock of the links by determining the voltage and the clock of the links of the established paths according to a bandwidth required for the data transmission of the PEs.Type: GrantFiled: October 17, 2008Date of Patent: May 29, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Woo Roh, Kang-Min Lee
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Patent number: 8165547Abstract: An apparatus and a method for acquiring synchronization to support multi-frequency in a mobile communication terminal are provided. The apparatus includes a frequency generator, a control signal generator and at least two modems for operating respective Frequency Allocations (FAs) by sharing the frequency generator and the control signal generator. In an embodiment, the frequency generator respectively receives first reference frequency clock signals from an oscillator of each of the at least two modems and generates a second reference frequency clock signal and the control signal generator outputs a signal for controlling the oscillator of each of the at least two modems according to a frequency offset value estimated in each of the at least two modems.Type: GrantFiled: August 8, 2008Date of Patent: April 24, 2012Assignee: Samsung Electronics Co., LtdInventors: Ki-Joon Hong, In-Chun Lim, Bong-Gee Song, Jin-Woo Roh
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Publication number: 20120083301Abstract: An apparatus and method are provided for communicating in a network in which interference exists between wireless communication systems. The apparatus includes multiple transceivers for individually communicating with base stations of the multiple wireless communication systems; and a controller for negotiating with at least one of the base stations, setting a non-communication period with a negotiated base station, and communicating with the negotiated base station during the non-communication period, based on whether an interference level between wireless signals communicated through the multiple transceivers falls within a predetermined range.Type: ApplicationFiled: October 4, 2011Publication date: April 5, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Sang-Yun HWANG, Jin-Woo Roh, Seo-Goo Lee
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Patent number: 8060801Abstract: Disclosed is a method and apparatus for efficiently controlling buffers which support a Hybrid Automatic Repeat Request (HARQ) in a wireless communication system. Buffer regions for the HARQ scheme are not fixedly allocated according to channel identification information, but are allocated from the viewpoint of one overall memory through aggregation support. That is, an HARQ buffer is dynamically controlled. Therefore, there are the effects reducing the size of the entire chip, as well as reducing power consumption of the entire system according to the reduction of the chip size.Type: GrantFiled: September 13, 2007Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., LtdInventors: Ji-Yun Seol, Hyun-Sang Cho, Bong-Gee Song, Jong-Han Lim, Jin-Woo Roh
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Publication number: 20110243210Abstract: In the power saving, a method for saving power at a receiver of a mobile communication system includes acquiring Carrier to Interference plus Noise Ratio (CINR) and Modulation and Coding Scheme (MCS) information required by the receiver; determining the number of Least Significant Bits (LSBs) to hold based on the CINR and MCS information; and holding LSBs of the determined number of the bits in received information.Type: ApplicationFiled: November 27, 2009Publication date: October 6, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seo-Goo Lee, Min-Cheol Park, Byung-Tae Kang, Jin-Woo Roh