Patents by Inventor Takashi Enoki
Takashi Enoki 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: 10149297Abstract: Data is transferred between a DECT terminal and an LTE base station. A base unit includes a DECT communication unit and an LTE communication unit, the DECT communication unit performing DECT communication with a DECT terminal, and the LTE communication unit transmitting and receiving data with the DECT communication unit and performing LTE communication with an LTE carrier gateway through an LTE base station. The DECT communication unit, in a case where an adjacent frequency bandwidth that is adjacent to one of DECT communication sub-bands is used in the LTE communication, controls the DECT communication to be performed by using the other sub-band.Type: GrantFiled: July 11, 2016Date of Patent: December 4, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroyuki Ishihara, Akira Shibuta, Shinji Ikegami, Hirokazu Sugiyama, Takashi Enoki, Kazuhide Shibata, Masayuki Nagano
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Communication system for transferring data between DECT terminal and wide area wireless base station
Patent number: 9781647Abstract: Data is transferred between a DECT terminal and an LTE base station. A base unit includes a DECT communication unit and an LTE communication unit, the DECT communication unit performing DECT communication with a DECT terminal, and the LTE communication unit transmitting and receiving data with the DECT communication unit and performing LTE communication with an LTE carrier gateway through an LTE base station. The DECT communication unit transmits a connection verification request to the LTE communication unit in order to verify a connection state of an LTE link with the LTE carrier gateway. The LTE communication unit transmits a connection verification response to the DECT communication unit in response to the connection verification request in a case where an LTE link is connected.Type: GrantFiled: June 30, 2016Date of Patent: October 3, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hiroyuki Ishihara, Akira Shibuta, Shinji Ikegami, Hirokazu Sugiyama, Takashi Enoki, Kazuhide Shibata, Masayuki Nagano -
Publication number: 20170019824Abstract: Data is transferred between a DECT terminal and an LTE base station. A base unit includes a DECT communication unit and an LTE communication unit, the DECT communication unit performing DECT communication with a DECT terminal, and the LTE communication unit transmitting and receiving data with the DECT communication unit and performing LTE communication with an LTE carrier gateway through an LTE base station. The DECT communication unit transmits a connection verification request to the LTE communication unit in order to verify a connection state of an LTE link with the LTE carrier gateway. The LTE communication unit transmits a connection verification response to the DECT communication unit in response to the connection verification request in a case where an LTE link is connected.Type: ApplicationFiled: June 30, 2016Publication date: January 19, 2017Inventors: Hiroyuki Ishihara, Akira Shibuta, Shinji Ikegami, Hirokazu Sugiyama, Takashi Enoki, Kazuhide Shibata, Masayuki Nagano
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Publication number: 20170019898Abstract: Data is transferred between a DECT terminal and an LTE base station. A base unit includes a DECT communication unit and an LTE communication unit, the DECT communication unit performing DECT communication with a DECT terminal, and the LTE communication unit transmitting and receiving data with the DECT communication unit and performing LTE communication with an LTE carrier gateway through an LTE base station. The DECT communication unit, in a case where an adjacent frequency bandwidth that is adjacent to one of DECT communication sub-bands is used in the LTE communication, controls the DECT communication to be performed by using the other sub-band.Type: ApplicationFiled: July 11, 2016Publication date: January 19, 2017Inventors: Hiroyuki Ishihara, Akira Shibuta, Shinji Ikegami, Hirokazu Sugiyama, Takashi Enoki, Kazuhide Shibata, Masayuki Nagano
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Patent number: 8948233Abstract: Provided is a wireless relaying device, wherein system capacity can be increased by reducing power consumption required for relay processing at mobile stations equipped with relaying function. This is a relaying node (200) that relays communication between an originating node and a destination node, and that is provided with: a demodulation unit (203) that demodulates a signal transmitted from the originating node; a decoding unit (205) that obtains a signal destined for the relaying node (200), by decoding an amplitude bit from among a plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (203); and a modulation unit (208) that generates a relay signal destined for the destination node, by modulating a phase bit from among the plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (203).Type: GrantFiled: December 15, 2010Date of Patent: February 3, 2015Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Seigo Nakao, Daichi Imamura, Takashi Enoki, Megumi Ichikawa
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Publication number: 20130100988Abstract: Provided is a wireless relaying device, wherein system capacity can be increased by reducing power consumption required for relay processing at mobile stations equipped with relaying function. This is a relaying node (200) that relays communication between an originating node and a destination node, and that is provided with: a demodulation unit (203) that demodulates a signal transmitted from the originating node; a decoding unit (205) that obtains a signal destined for the relaying node (200), by decoding an amplitude bit from among a plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (203); and a modulation unit (208) that generates a relay signal destined for the destination node, by modulating a phase bit from among the plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (203).Type: ApplicationFiled: December 15, 2010Publication date: April 25, 2013Applicant: PANASONIC CORPORATIONInventors: Seigo Nakao, Daichi Imamura, Takashi Enoki
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Patent number: 8337982Abstract: A benzoxazole resin precursor comprising a first repeating unit which is obtained by the reaction of a bisaminophenol compound and a dicarboxylic acid compound, at least one of which has the diamondoid structure; a benzoxazole resin precursor further comprising a second repeating unit which is obtained by the reaction of a bisaminophenol compound having no diamondoid structure and a dicarboxylic acid compound having no diamondoid structure; a polybenzoxazole resin obtained by the ring-closing reaction with dehydration of the above benzoxazole resin precursor; a resin film constituted with the benzoxazole resin precursor or the polybenzoxazole resin. A polybenzoxazole resin and a resin film having excellent heat resistance and a small permittivity and a semiconductor device using the resin film can be obtained from the benzoxazole resin precursor.Type: GrantFiled: June 20, 2005Date of Patent: December 25, 2012Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Takashi Enoki, Atsushi Izumi
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Patent number: 8178631Abstract: Disclosed is a resin composition comprising a benzoxazole resin precursor having a first repeating unit obtained by reacting a bisaminophenol compound and a dicarboxylic acid compound, and a cross-linking agent wherein at least one of the bisaminophenol compound and the dicarboxylic acid compound has a diamondoid structure. The benzoxazole resin precursor further comprises a second repeating unit obtained by reacting a bisaminophenol compound not having a diamondoid structure and a dicarboxylic acid compound not having a diamondoid structure. Also disclosed is a resin film comprising the resin composition.Type: GrantFiled: September 21, 2006Date of Patent: May 15, 2012Assignee: Sumitomo Bakelite Company, Ltd.Inventors: Takashi Enoki, Atsushi Izumi, Hiromi Oki, Yukiharu Ono, Kazuyoshi Fujita
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Patent number: 8027411Abstract: A wireless receiver having improved receiving characteristics is provided.Type: GrantFiled: July 10, 2006Date of Patent: September 27, 2011Assignee: Panasonic CorporationInventors: Makoto Sasaki, Takashi Enoki
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Publication number: 20100202569Abstract: A radio receiver which is capable of improving the power consumption efficiency in the analog/digital conversion process. On a radio receiver (100), an undesired wave signal detector section (140) detects the levels of undesired wave signals excluding desirable wave signals, an A/D converter section (120), having N pieces of bit decision sections corresponding to each bit of the maximum number of quantization bits N, performs analog/digital conversion of the quadrature-demodulated signal using only the same number of bit decision sections as the setting number of quantization bits k (k?N), and a number of bits-control section (155) switches the number of quantization bits k which is set up at the A/D converter section (120) depending on a ratio of the desirable wave signal level to the undesired wave signal level. In such a manner of adaptation to the ratio of the desirable wave signal level to the undesired wave signal level, the number of quantization bits can be increased/decreased.Type: ApplicationFiled: September 11, 2007Publication date: August 12, 2010Applicant: PANASONIC CORPORATIONInventors: Shinji Ueda, Takashi Enoki
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Patent number: 7769358Abstract: A radio system having an improved phase noise characteristic and a thereby improved communication quality, a radio transmitter, and a radio receiver. In the radio system, a radio transmitter (101) transmits a multiplexed signal so multiplexed that a pilot signal transmitted at the center frequency.Type: GrantFiled: March 23, 2005Date of Patent: August 3, 2010Assignee: Panasonic CorporationInventors: Makoto Sasaki, Takashi Enoki, Katsumi Iizuka
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Publication number: 20100183105Abstract: An OFDM receiver (100) has an FFT circuit (107c), an OFDM demodulating section (107) which performs OFDM demodulation for the received OFDM signal, a D/U (Desire to Undesire ratio) measuring section (106a) which measures the D/U in accordance with the OFDM-demodulated signal, a window function processing section (107b) provided at the preceding stage of the FFT circuit (107c), and a selecting section (106b) which switches the factors of the window function processing section (107b) in accordance with the D/U measured by the D/U measuring section (106a). This ensures elimination of interfering waves excellently with relatively simple configuration and low power consumption while suppressing deterioration in the BER due to processing of the window function.Type: ApplicationFiled: September 7, 2007Publication date: July 22, 2010Applicant: PANASONIC CORPORATIONInventors: Kazuhiko Takeyama, Takashi Enoki
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Patent number: 7684513Abstract: An amplifying method and apparatus generates a plurality of constant envelope signals from an input signal and generates a plurality of pilot signals associated with the generated plurality of constant envelope signals, respectively. The plurality of pilot signals have predetermined amplitudes, predetermined phases, and predetermined frequencies, respectively, and the phases and frequencies are different from each other. The plurality of pilot signals are added to the generated plurality of constant envelope signals, and the sum is amplified. An amplitude or phase of one of the generated plurality of constant envelope signals is corrected using signal components included in the amplified plurality of constant envelope signals.Type: GrantFiled: September 17, 2004Date of Patent: March 23, 2010Assignee: Panasonic CorporationInventors: Kazuhiko Ikeda, Takashi Izumi, Takashi Enoki
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Patent number: 7652125Abstract: A resin composition having high heat resistance and low dielectric constant after heat treatment, a varnish thereof and a semiconductor device using the same are provided by a resin composition including a compound having a structure represented by the general formula (1): wherein, “Ar” is an aromatic group; “a” is 0 or 1; R11 is an organic group having one or more carbon atoms and at least one is a group having an alicyclic structure; when “q” is an integer of 2 or more, R11s may be the same or different from each other; at least one of R1 to R5 and at least one of R6 to R10 on respective benzene rings are Ar-binding sites or R11-binding sites and the others of R1 to R5 and R6 to R10 are each hydrogen, a group having an alicyclic structure, an organic group having 1 to 10 carbon atoms, a hydroxyl group or a carboxyl group; when “a” is 0, at least one of R1 to R5 and R6 to R10 is a group having an alicyclic structure; “q” is an integer of 1 or more; and “X” is any of —O—, —NHCO—, —COHN—, —COO— and —OCO—.Type: GrantFiled: September 29, 2005Date of Patent: January 26, 2010Assignee: Sumitomo Bakelite Company, Ltd.Inventors: Takashi Enoki, Atsushi Izumi, Yumiko Yamamoto, Takahiro Harada
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Publication number: 20090214860Abstract: Disclosed is a resin composition comprising a benzoxazole resin precursor having a first repeating unit obtained by reacting a bisaminophenol compound and a dicarboxylic acid compound, and a cross-linking agent wherein at least one of the bisaminophenol compound and the dicarboxylic acid compound has a diamondoid structure. The benzoxazole resin precursor further comprises a second repeating unit obtained by reacting a bisaminophenol compound not having a diamondoid structure and a dicarboxylic acid compound not having a diamondoid structure. Also disclosed is a resin film comprising the resin composition.Type: ApplicationFiled: September 21, 2006Publication date: August 27, 2009Inventors: Takashi Enoki, Atsushi Izumi, Hiromi Oki, Yukiharu Ono, Kazuyoshi Fujita
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Publication number: 20090207945Abstract: A wireless receiver having improved receiving characteristics is provided.Type: ApplicationFiled: July 10, 2006Publication date: August 20, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Makoto Sasaki, Takashi Enoki
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Publication number: 20080255335Abstract: A resin composition having high heat resistance and low dielectric constant after heat treatment, a varnish thereof and a semiconductor device using the same are provided by a resin composition including a compound having a structure represented by the general formula (1): wherein, “Ar” is an aromatic group; “a” is 0 or 1; R11 is an organic group having one or more carbon atoms and at least one is a group having an alicyclic structure; when “q” is an integer of 2 or more, R11s may be the same or different from each other; at least one of R1 to R5 and at least one of R6 to R10 on respective benzene rings are Ar-binding sites or R11-binding sites and the others of R1 to R5 and R6 to R10 are each hydrogen, a group having an alicyclic structure, an organic group having 1 to 10 carbon atoms, a hydroxyl group or a carboxyl group; when “a” is 0, at least one of R1 to R5 and R6 to R10 is a group having an alicyclic structure; “q” is an integer of 1 or more; and “X” is any of —O—, —NHCO—, —COHN—, —COO— and —OCO—Type: ApplicationFiled: September 29, 2005Publication date: October 16, 2008Applicant: SUMITOMO BAKELITE COMPANY LTD.Inventors: Takashi Enoki, Atsushi Izumi, Yumiko Yamamoto, Takahiro Harada
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Publication number: 20080233878Abstract: There are provided a radio system and a radio communication device capable of removing a phase noise superimposed on a reception signal and a phase noise generated in the system of a reception radio unit. In this system, a radio transmission device (101) transmits a multiplex signal multiplexed so that a pilot signal is placed on the center frequency. A radio reception device (151) frequency-multiplies a reception signal by a pilot signal having the same frequency error and phase noise as the reception signal, and frequency-multiplies the phase noise contained in a local oscillation signal used when subjecting the reception signal to frequency conversion, by using the signal having the same phase noise. Thus, it is possible to remove the frequency error and phase noise contained in the reception signal and the phase noise in the reception system.Type: ApplicationFiled: March 23, 2005Publication date: September 25, 2008Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Katsumi Iizuka, Makoto Sasaki, Takashi Enoki
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Publication number: 20080233879Abstract: A radio system having an improved phase noise characteristic and a thereby improved communication quality, a radio transmitter, and a radio receiver. In the radio system, a radio transmitter (101) transmits a multiplexed signal so multiplexed that a pilot signal transmitted at the center frequency.Type: ApplicationFiled: March 23, 2005Publication date: September 25, 2008Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Makoto Sasaki, Takashi Enoki, Katsumi Iizuka
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Publication number: 20080206548Abstract: A benzoxazole resin precursor comprising a first repeating unit which is obtained by the reaction of a bisaminophenol compound and a dicarboxylic acid compound, at least one of which has the diamondoid structure; a benzoxazole resin precursor further comprising a second repeating unit which is obtained by the reaction of a bisaminophenol compound having no diamondoid structure and a dicarboxylic acid compound having no diamondoid structure; a polybenzoxazole resin obtained by the ring-closing reaction with dehydration of the above benzoxazole resin precursor; a resin film constituted with the benzoxazole resin precursor or the polybenzoxazole resin. A polybenzoxazole resin and a resin film having excellent heat resistance and a small permittivity and a semiconductor device using the resin film can be obtained from the benzoxazole resin precursor.Type: ApplicationFiled: June 20, 2005Publication date: August 28, 2008Applicant: Sumitomo Bakelite Co., LTDInventors: Takashi Enoki, Atsushi Izumi