Patents by Inventor Nobuhiko Watanabe

Nobuhiko Watanabe 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).

  • Publication number: 20160174165
    Abstract: To suitably perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. A terminal station estimates a distance of another terminal station (within a receivable range), from an MCS or RSSI, for example, and controls a transmission power of itself, in accordance with a value weighted with respect to distance. For example, in the case where it is estimated that a number of terminal stations with a far distance has increased, from the value weighted with respect to distance, a transmission power of itself is lowered. As a result of this, transmission by multi-hop is explicitly performed, and it is possible to suppress electric wave interference of a multi-hop destination.
    Type: Application
    Filed: May 30, 2014
    Publication date: June 16, 2016
    Applicant: SONY CORPORATION
    Inventors: Yoshihiko IKENAGA, Kazuyuki SAKODA, Nobuhiko WATANABE, Chihiro FUJITA
  • Publication number: 20160174167
    Abstract: There is provided a wireless communication apparatus and wireless communication method, which can perform information transfer, while suppressing interference to other terminal stations, and preventing a reduction of a transmission opportunity of other terminal stations. By causing the transmission power to be reduced, at the time when a traffic amount to be transmitted and received by itself increases, a terminal station which performs wireless access based on CSMA on a mesh network can suppress interference to other surrounding terminal stations, and can prevent a reduction of a transmission opportunity of other terminal stations. By measuring the number of and sizes of packets to be transmitted and received, it is possible for a terminal station to comprehend the traffic amount to be transmitted and received by itself, and perform a control of the transmission power by this.
    Type: Application
    Filed: May 30, 2014
    Publication date: June 16, 2016
    Applicant: Sony Corporation
    Inventors: CHIHIRO FUJITA, KAZUYUKI SAKODA, NOBUHIKO WATANABE, YOSHIHIKO IKENAGA
  • Patent number: 6549545
    Abstract: A pilot signal detection method and a receiver, in which a search window having a predetermined time width is generated at every substantially constant time interval, and pilot signals existing in search window thus generated are detected. The position of the search window of each period is set in accordance with the delay amount between the timing (T_ref) of the first pilot signal and the timing (T_last) of the last pilot signal detected in the immediately preceding search window.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: April 15, 2003
    Assignee: Sony Corporation
    Inventors: Katsuya Yamamoto, Nobuhiko Watanabe
  • Patent number: 6421369
    Abstract: In a receiving method and receiver for spread spectrum signals, a predetermined detection phase range is set as a reference phase position with a receiving timing of a spectrum signal having the highest correlation value with a diffusion code among a plurality of spread spectrum signals received, spread spectrum signals of which the correlation values with the diffusion codes are a predetermined level or more are detected from the spread spectrum signals within the predetermined detection phase range, a demodulation signal is generated from the spread spectrum signals, of which the correlation values are at least at the predetermined level. Then, the steps of setting the predetermined detection phase range, detecting the spread spectrum signals, and generating the modulation signal are repeated.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: July 16, 2002
    Assignee: Sony Corporation
    Inventors: Jun Iwaskai, Katsuya Yamamoto, Nobuhiko Watanabe
  • Patent number: 6122311
    Abstract: When demodulated signals through respective paths are combined by a data combiner, with write addresses of count values of PN phase counters that represent the phases of the PN codes of fingers, the demodulated signals that are output from the fingers are stored in memories. With a common read and combined to form a single demodulated signal address, signals stored in the memories are read.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: September 19, 2000
    Assignee: Sony Corporation
    Inventors: Nobuhiko Watanabe, Jun Iwasaki
  • Patent number: 6081150
    Abstract: In a control voltage producing apparatus, either a pulse-duration modulation signal or a pulse-width modulation signal, which are generated in response to a digital control signal, is from a first buffer circuit to an averaging circuit so as to be averaged. A power supply voltage is supplied from a first voltage source to this first buffer circuit. Then, the averaged signal is supplied to a control voltage producing circuit for producing a target control voltage. When a control voltage is produced, the same output voltage as that of the first buffer circuit is generated by a second buffer circuit, and then is supplied to the control voltage generating circuit and an operation control circuit. In response to the output voltage derived from the second buffer circuit, the operation control circuit applies the power supply voltage to the control voltage producing circuit so as to cause this control voltage producing circuit to be operable.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: June 27, 2000
    Assignee: Sony Corporation
    Inventors: Tomoya Yamaura, Nobuhiko Watanabe
  • Patent number: 6075811
    Abstract: A receiving apparatus for receiving a signal that has been spectrum-spread with a spread code, comprising a searcher for searching paths of signals received from multi-paths, a plurality of fingers for de-spreading the received signals for the searched paths and demodulating data, a combiner for combining output data of the fingers, and a controller for controlling the receiving operation, wherein in a reception state the controller designates control information of the searcher for the next reception state and then keeps a stopped state until the searcher completes an operation corresponding to the control information so as to intermittently receive the signal. Thus, the power consumption of the controller can be decreased.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: June 13, 2000
    Assignee: Sony Corporation
    Inventors: Tetsuya Naruse, Nobuhiko Watanabe
  • Patent number: 6025858
    Abstract: A recording head includes a recording element having a plurality of light-emitting elements, a first substrate on which the recording element is mounted, a driving unit for driving the recording element, a second substrate on which the driving unit is mounted, and bonding wires. The recording element has bonding pads, and the second substrate has through holes. The bonding wires connect the bonding pads and the inner surfaces of the through holes.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: February 15, 2000
    Assignees: Canon Kabushiki Kaisha, Canon Component Kabushiki Kaisha
    Inventors: Hiroshi Tanioka, Kaoru Shoji, Seiji Kakimoto, Toshihiko Ohtsubo, Mitsuru Amimoto, Mitsuo Shiraishi, Nobuhiko Watanabe
  • Patent number: 5524287
    Abstract: A radio communication apparatus comprises a transmitting circuit, a receiving circuit, an amplifier, a control circuit and a detecting circuit. The receiving circuit receives a signal from an opposite station such as a base station. The transmitting circuit transmits a signal to the opposite station. The amplifier amplifies the signal to be transmitted from the transmitting circuit. The control circuit controls the level of the transmission signal outputted from the amplifier. The detecting circuit detects the reception state in response to the reception level or the error rate of the signal transmitted from the opposite station. And the control circuit selectively switches, in response to the detection signal obtained from the detecting circuit, the output level of the transmission signal obtained via the amplifier from a high-level mode to a low-level mode when the reception state of the signal transmitted from the opposite station satisfies a preset value.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 4, 1996
    Assignee: Sony Corporation
    Inventors: Satoshi Yokoya, Hiroshi Yasuda, Ryuji Oki, Nobuhiko Watanabe
  • Patent number: 5521714
    Abstract: In a rotary head type reproducing apparatus, such as a digital audio tape recorder (DAT), a display changeover operation, a key scanning operation or a sensor scanning operation is inhibited during the periods T.sub.PB-A, T.sub.PB-B when a rotary head is in contact with a magnetic tape for reproducing signals, and the display changeover operation is performed during time periods T.sub.DS1 to T.sub.DS4 outside of these periods T.sub.PB-A, T.sub.PB-B, while the scanning operations are performed during a time period T.sub.SC. An error rate may be improved because noises due to display changeover or scanning may be eliminated during the time the magnetic head is contacted with the magnetic tape for signal reproduction. The result is that shielding or the like may be eliminated and the display section of switches may be mounted in proximity to the rotary head to reduce the size of weight of the apparatus.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: May 28, 1996
    Assignee: Sony Corporation
    Inventors: Masato Tanaka, Nobuhiko Watanabe
  • Patent number: 5260951
    Abstract: A digital cellular communication system includes a plurality of error detection/correction systems for detecting and correcting errors in data encoded using any of several types of encoding. When more than one error detection/correction system produces valid data the number of corrections required to obtain valid data is used to determine which result is actually valid.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: November 9, 1993
    Assignee: Sony Corporation
    Inventor: Nobuhiko Watanabe
  • Patent number: 5178135
    Abstract: A therapeutical apparatus includes a measuring apparatus including a probe which generates an X-ray or ultrasonic wave in order to detect the location of a target to be treated such as calculi situated within the kidney, liver, biliary ducts. A therapeutical energy generator generates a shock wave of sufficient energy for purpose of therapy externally of the physical body and focusses it upon the target. Structure is provided for causing a displacement of the generator and the measuring apparatus around the surface of a patient. Structure is provided to activate the generator.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: January 12, 1993
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Naoki Uchiyama, Takashi Tsukaya, Kouichiro Ishihara, Sakae Takehana, Tetsumaru Kubota, Syuichi Takayama, Akira Taniguchi, Nobuhiko Watanabe, Naomi Sekino, Hiroki Hibino, Masaaki Hayashi
  • Patent number: 5078144
    Abstract: An ultrasonic treatment system for conducting treatment by converging ultrasonic waves which are generated outside of a body to a part to be treated in the body comprising an ultrasonic wave generator for generating the ultrasonic waves to be converged to the part to be treated; and an insertion tube connected to the ultrasonic wave generator for guiding an instrument, such as a syringe, employed to introduce and/or return a treatment material to the body.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: January 7, 1992
    Assignee: Olympus Optical Co. Ltd.
    Inventors: Naomi Sekino, Shuichi Takayama, Masakazu Gotanda, Koichiro Ishihara, Naoki Uchiyama, Nobuhiko Watanabe, Masaaki Nakazawa, Tsuguhisa Sasai, Tsutomu Okada, Takeo Haneda, Masaaki Hayashi
  • Patent number: 5065741
    Abstract: A therapeutical apparatus includes a measuring apparatus including a probe which generates an X-ray or ultrasonic wave in order to detect the location of a target to be treated such as calculi situated within the kidney, liver, biliary ducts. A therapeutical energy generator generates a shock wave of sufficient energy for purposes of therapy externally of the physical body and focuses it upon the target. Structure is provided for causing a displacement of the generator and the measuring apparatus around the surface of a patient. Structure is provided to activate the generator.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: November 19, 1991
    Assignee: Olympus Optical Co. Ltd.
    Inventors: Naoki Uchiyama, Takashi Tsukaya, Kouichiro Ishihara, Sakae Takehana, Tetsumaru Kubota, Syuichi Takayama, Akira Taniguchi, Nobuhiko Watanabe, Naomi Sekino, Hiroki Hibino, Masaaki Hayashi
  • Patent number: 4984575
    Abstract: A therapeutical apparatus includes a measuring apparatus including a probe which generates an X-ray or ultrasonic wave in order to detect the location of a target to be treated such as calculi situated within the kidney, liver, biliary ducts. A therapeutical energy generator generates a shock wave of sufficient energy for purpose of therapy externally of the physical body and focusses it upon the target. Structure is provided for causing a displacement of the generator and the measuring apparatus around the surface of a patient. Structure is provided to activate the generator.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: January 15, 1991
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Naoki Uchiyama, Takashi Tsukaya, Kouichiro Ishihara, Sakae Takehana, Tetsumaru Kubota, Syuichi Takayama, Akira Taniguchi, Nobuhiko Watanabe, Naomi Sekino, Hiroki Hibino, Masaaki Hayashi
  • Patent number: 4541089
    Abstract: In an apparatus for connecting first and second digital data which overlap before and after a connecting point, and in which said digital data is muted after the connecting point for limiting errors in the output from the apparatus, the combination of a detector which detects when the muting of the second digital data terminates and which generates detection signals in response thereto, and a cross-fader which gradually fades out the first digital data and gradually fades in the second digital data in response to the detection signals.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: September 10, 1985
    Assignee: Sony Corporation
    Inventor: Nobuhiko Watanabe
  • Patent number: 4525752
    Abstract: An apparatus for reproducing a digital signal recorded on a recording medium in the form of successive data blocks, in which each data block includes at least plural data words and a block address circulating with a predetermined phase relation to a certain reference signal. In accordance with the reference signal, a control signal is recorded on the recording medium. The control signal is reproduced from the recording medium and a reference phase signal with a frequency of an integral multiple of more than twice the frequency of the control signal is sampled by the control signal, and a phase comparison output and a lock mode signal are generated from the sampling output. The running phase of the recording medium is controlled by the phase comparison output whereby the fluctuation of running speed of the recording medium due to discontinuities of the control signal can be suppressed.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: June 25, 1985
    Assignee: Sony Corporation
    Inventors: Nobuhiko Watanabe, Masato Tanaka
  • Patent number: 4492989
    Abstract: A time base correcting apparatus is disclosed which is capable of correcting time base errors contained in a digital signal supplied thereto in the form of successive data blocks with each data block including plural data words. Each data block includes therein at least plural data words and a block address circulating with a predetermined phase relation relative to a certain reference signal. A memory is provided, having plural addressable storage locations, each adapted to store a respective data block. A write-in address to identify the particular storage locations is generated according to data block addresses and read-out addresses. The write-in address is varied by a lock phase mode signal indicative of a phase relation at which an incoming digital signal is locked to a reference signal so that notwithstanding the phase mode in which the digital signal is locked to the reference signal, the correction ability of the time base correcting apparatus can be prevented from being lowered.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: January 8, 1985
    Assignee: Sony Corporation
    Inventors: Nobuhiko Watanabe, Masato Tanaka
  • Patent number: 4441184
    Abstract: A PCM digital signal is provided with double-interleaving and error-correction encoding to protect against errors occurring during transmission, which can be carried out by magnetic recording and reproducing. The PCM signal is processed as error correcting blocks of several data word sequences and an associated error correction word sequence, and the double-interleaved sequences are then transmitted as transmission blocks. Up to one erroneous word in each error correction block can be corrected by using the error correction word sequence. Any uncorrectable word can be compensated by substituting a synthetic word interpolated from immediately preceding and following data words known to be correct. The distance between successive data words is made as great as possible so that a long burst error is unlikely to affect the ability to compensate uncorrectable errors.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: April 3, 1984
    Assignee: Sony Corporation
    Inventors: Takenori Sonoda, Nobuhiko Watanabe, Masato Tanaka
  • Patent number: RE36803
    Abstract: .[.A bit clock reproducing circuit produces an output bit clock signal in response to an input clock signal but without reproducing jitter present in the input signal. A counter is supplied with a reference clock signal as a counting input, and the counter is periodically loaded, at a fixed time during each cycle of the input clock signal, with data which is a predetermined function of the state of the counter at such times..]. .Iadd.A bit clock reproducing circuit incorporates a counter for counting pulses of a clock pulse source after the arrival of an edge of a data pulse, at which time the counter is loaded with one of a number of preset values stored in a read-only memory, the contents of which are addressed by the counter output. Input data pulses are gated to an output terminal when the counter arrives at a predetermined state.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: August 1, 2000
    Assignee: Sony Corporation
    Inventors: Masato Tanaka, Nobuhiko Watanabe