Patents by Inventor Hisashi Ootomo
Hisashi Ootomo 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: 8559179Abstract: According to one embodiment, a substrate unit includes an electronic circuit substrate which includes a first width dimension portion, and a second width dimension portion continuous with the front direction side of the first width dimension portion. A first concave portion is formed on the first direction side of the first width dimension portion and a second concave portion is formed on the second direction side of the first width dimension portion in the electronic circuit substrate. The substrate unit includes a heat sink which includes a first side frame portion fixed to the first width dimension portion from the first concave portion, a second side frame portion fixed to the first width dimension portion from the second concave portion, and a sink main body portion continuous from the first side frame portion to the second side frame portion.Type: GrantFiled: January 13, 2011Date of Patent: October 15, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hisashi Ootomo, Tomonori Ezoe
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Publication number: 20110304989Abstract: According to one embodiment, a substrate unit includes an electronic circuit substrate which includes a first width dimension portion, and a second width dimension portion continuous with the front direction side of the first width dimension portion. A first concave portion is formed on the first direction side of the first width dimension portion and a second concave portion is formed on the second direction side of the first width dimension portion in the electronic circuit substrate. The substrate unit includes a heat sink which includes a first side frame portion fixed to the first width dimension portion from the first concave portion, a second side frame portion fixed to the first width dimension portion from the second concave portion, and a sink main body portion continuous from the first side frame portion to the second side frame portion.Type: ApplicationFiled: January 13, 2011Publication date: December 15, 2011Inventors: Hisashi OOTOMO, Tomonori Ezoe
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Patent number: 8077073Abstract: A pulse detecting equipment includes a log compression processor (105) for logarithm-converting signal levels of a reception signal received at an antenna and input therefrom, with maintained frequency components of the reception signal as input, an AD converter (106) for converting the reception signal as logarithm-converted in signal level, from an analog form into a digital form, a first detector (110) for limiting the reception signal as converted into the digital form to a band of a prescribed first frequency, to obtain a signal, to detect signal levels thereof, a second detector (111) for limiting the reception signal as converted into the digital form to a band of a prescribed second frequency smaller than the first frequency, to obtain a signal, to detect signal levels thereof, and a pulse detector (113) for use of a result of comparison between signal levels detected at the first detector and signal levels detected at the second detector, to detect pulses of a prescribed frequency as a signal transmiType: GrantFiled: January 20, 2010Date of Patent: December 13, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Hisashi Ootomo, Yoshirou Aoki
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Publication number: 20100315283Abstract: A pulse detecting equipment includes a log compression processor (105) for logarithm-converting signal levels of a reception signal received at an antenna and input therefrom, with maintained frequency components of the reception signal as input, an AD converter (106) for converting the reception signal as logarithm-converted in signal level, from an analog form into a digital form, a first detector (110) for limiting the reception signal as converted into the digital form to a band of a prescribed first frequency, to obtain a signal, to detect signal levels thereof, a second detector (111) for limiting the reception signal as converted into the digital form to a band of a prescribed second frequency smaller than the first frequency, to obtain a signal, to detect signal levels thereof, and a pulse detector (113) for use of a result of comparison between signal levels detected at the first detector and signal levels detected at the second detector, to detect pulses of a prescribed frequency as a signal transmiType: ApplicationFiled: January 20, 2010Publication date: December 16, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hisashi OOTOMO, Yoshirou Aoki
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Patent number: 7663531Abstract: A secondary surveillance radar system comprising a including a ground system which observes an observation area where an aircraft equipped with a mode S transponder and an aircraft equipped with an ATCRBS transponder possibly coexist, wherein the ground system comprises includes a transmit processor which transmits to the observation area an all-call interrogation signal specific for mode S including an identification code of the ground system, a receive processor which receives a reply signal to the interrogation signal transmitted by the transmit processor, and a recognition processor which recognizes the reply signal as a processing target when identification information included in the reply signal received by the receive processor coincides with the identification code of the ground system, and wherein the recognition processor recognizes the reply signal as the processing target also when the identification information included in the reply signal received by the receive processor coincides with null inType: GrantFiled: September 13, 2005Date of Patent: February 16, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Yoshinori Kuji, Yoshirou Aoki, Hisashi Ootomo
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Patent number: 7471235Abstract: There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs an arithmetic operation of a degree of auto correlation between an increasing change rate and decreasing change rate of a power level in the signal which has been subjected to the differential processing, a pulse regeneration unit which regenerates a pulse based on the degree of auto correlation, which has been obtained by the auto correlation arithmetic operation processing, a pulse phase locked loop unit which performs gate processing and phase locked processing for the regenerated pulse, and a pulse decoding unit which decodes the Mode S transponder transmission signal based on the pulse which has been subjected to the gate processing and the phase locked processing.Type: GrantFiled: December 19, 2007Date of Patent: December 30, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Hisashi Ootomo, Yoshirou Aoki, Yoshinori Kuji
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Patent number: 7408498Abstract: An interrogation transmission method of a secondary surveillance radar compares prediction angle ranges for transmitting interrogations with a beam-width of an antenna, and transmits the interrogations at every roll-call period if the prediction angle ranges for transmitting interrogations are narrower than the beam-width of the antenna. In contrast, if the prediction angle ranges for transmitting the interrogations are wider than the beam-width of the antenna, the radar respectively sets a period to transmit the interrogations and a period not to transmit the interrogations until responses can be received, and transmits interrogations at every roll-call period after the responses can be received (even if a receiving error or downlink occurs).Type: GrantFiled: September 7, 2005Date of Patent: August 5, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Yoshinori Kuji, Yoshirou Aoki, Hisashi Ootomo
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Patent number: 7391359Abstract: There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs an arithmetic operation of a degree of auto correlation between an increasing change rate and decreasing change rate of a power level in the signal which has been subjected to the differential processing, a pulse regeneration unit which regenerates a pulse based on the degree of auto correlation, which has been obtained by the auto correlation arithmetic operation processing, a pulse phase locked loop unit which performs gate processing and phase locked processing for the regenerated pulse, and a pulse decoding unit which decodes the Mode S transponder transmission signal based on the pulse which has been subjected to the gate processing and the phase locked processing.Type: GrantFiled: November 22, 2005Date of Patent: June 24, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Hisashi Ootomo, Yoshirou Aoki, Yoshinori Kuji
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Publication number: 20080106456Abstract: There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs an arithmetic operation of a degree of auto correlation between an increasing change rate and decreasing change rate of a power level in the signal which has been subjected to the differential processing, a pulse regeneration unit which regenerates a pulse based on the degree of auto correlation, which has been obtained by the auto correlation arithmetic operation processing, a pulse phase locked loop unit which performs gate processing and phase locked processing for the regenerated pulse, and a pulse decoding unit which decodes the Mode S transponder transmission signal based on the pulse which has been subjected to the gate processing and the phase locked processing.Type: ApplicationFiled: December 19, 2007Publication date: May 8, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hisashi Ootomo, Yoshirou Aoki, Yoshinori Kuji
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Patent number: 7095360Abstract: A secondary surveillance radar system for use in surveillance of an airspace, which reliably achieves surveillance of the airspace even when an aircraft including a mode S transponder and an aircraft including an ATCRBS transponder are both located in the airspace, wherein both of a time interval between time when transmission of an all-call interrogation signal specific for mode S is completed and time when the transmission of an all-call interrogation signal specific for mode A is started and a time interval between time when transmission of the all-call interrogation signal specific for mode S is completed and time when transmission of an all-call interrogation signal specific for mode C is started is varied in units of one all-call time period.Type: GrantFiled: September 3, 2004Date of Patent: August 22, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Yoshinori Kuji, Yoshirou Aoki, Hisashi Ootomo
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Publication number: 20060181447Abstract: A secondary surveillance radar system comprising a ground system which observes an observation area where an aircraft equipped with a mode S transponder and an aircraft equipped with an ATCRBS transponder possibly coexist, wherein the ground system comprises a transmit processor which transmits to the observation area an all-call interrogation signal specific for mode S including an identification code of the ground system, a receive processor which receives a reply signal to the interrogation signal transmitted by the transmit processor, and a recognition processor which recognizes the reply signal as a processing target when identification information included in the reply signal received by the receive processor coincides with the identification code of the ground system, and wherein the recognition processor recognizes the reply signal as the processing target also when the identification information included in the reply signal received by the receive processor coincides with null information.Type: ApplicationFiled: September 13, 2005Publication date: August 17, 2006Inventors: Yoshinori Kuji, Yoshirou Aoki, Hisashi Ootomo
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Publication number: 20060119502Abstract: There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs an arithmetic operation of a degree of auto correlation between an increasing change rate and decreasing change rate of a power level in the signal which has been subjected to the differential processing, a pulse regeneration unit which regenerates a pulse based on the degree of auto correlation, which has been obtained by the auto correlation arithmetic operation processing, a pulse phase locked loop unit which performs gate processing and phase locked processing for the regenerated pulse, and a pulse decoding unit which decodes the Mode S transponder transmission signal based on the pulse which has been subjected to the gate processing and the phase locked processing.Type: ApplicationFiled: November 22, 2005Publication date: June 8, 2006Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hisashi Ootomo, Yoshirou Aoki, Yoshinori Kuji
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Publication number: 20060055586Abstract: An interrogation transmission method of a secondary surveillance radar compares prediction angle ranges for transmitting interrogations with a beam-width of an antenna, and transmits the interrogations at every roll-call period if the prediction angle ranges for transmitting interrogations are narrower than the beam-width of the antenna. In contrast, if the prediction angle ranges for transmitting the interrogations are wider than the beam-width of the antenna, the radar respectively sets a period to transmit the interrogations and a period not to transmit the interrogations until responses can be received, and transmits interrogations at every roll-call period after the responses can be received (even if a receiving error or downlink occurs).Type: ApplicationFiled: September 7, 2005Publication date: March 16, 2006Inventors: Yoshinori Kuji, Yoshirou Aoki, Hisashi Ootomo
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Publication number: 20050083226Abstract: A secondary surveillance radar system for use in surveillance of an airspace, which reliably achieves surveillance of the airspace even when an aircraft including a mode S transponder and an aircraft including an ATCRBS transponder are both located in the airspace, wherein both of a time interval between time when transmission of an all-call interrogation signal specific for mode S is completed and time when the transmission of an all-call interrogation signal specific for mode A is started and a time interval between time when transmission of the all-call interrogation signal specific for mode S is completed and time when transmission of an all-call interrogation signal specific for mode C is started is varied in units of one all-call time period.Type: ApplicationFiled: September 3, 2004Publication date: April 21, 2005Inventors: Yoshinori Kuji, Yoshirou Aoki, Hisashi Ootomo