Patents by Inventor Yasutoshi Nakama
Yasutoshi Nakama 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: 6954135Abstract: An emergency communication system is installed on a vehicle for transmitting emergency information such as traffic accident, sudden illness, etc. to a center such as police station. It is used for the purpose of preventing inadvertent neglect of the connection of a handy phone to the system terminal unit when the handy phone is used as the emergency communication conveying means. In case it is not connected normally, a signal is set to a vehicle starting system 4 to prohibit the starting operation of the vehicle. This information is displayed on LED or LCD on a dashboard of the vehicle by the information transmitting means 6, and it is further stored in a storage unit 15 so that it can be picked up from outside via an external equipment connection interface 7.Type: GrantFiled: January 27, 2000Date of Patent: October 11, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Yoshioka, Yasutoshi Nakama
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Publication number: 20050153680Abstract: An emergency reporting apparatus for a vehicle includes a microphone, a loudspeaker, and a handsfree system circuit. Handsfree two-way speech communication with an emergency report receiving center is allowed via the microphone, the loudspeaker, and the handsfree system circuit. A volume control circuit connected to the loudspeaker operates for controlling a volume level of sound generated by the loudspeaker at a predetermined constant level or higher. The volume control circuit may control the volume level at the predetermined constant level, and may inhibit a user from changing the volume level.Type: ApplicationFiled: March 9, 2005Publication date: July 14, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Yoshioka, Yasutoshi Nakama, Masashi Yamamoto
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Patent number: 6873837Abstract: An emergency reporting apparatus for a vehicle includes a microphone, a loudspeaker, and a handsfree system circuit. Handsfree two-way speech communication with an emergency report receiving center is allowed via the microphone, the loudspeaker, and the handsfree system circuit. A volume control circuit connected to the loudspeaker operates for controlling a volume level of sound generated by the loudspeaker at a predetermined constant level or higher. The volume control circuit may control the volume level at the predetermined constant level, and may inhibit a user from changing the volume level.Type: GrantFiled: January 27, 2000Date of Patent: March 29, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Yoshioka, Yasutoshi Nakama, Masashi Yamamoto
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Patent number: 6377165Abstract: The Mayday system equipment, installable on an automotive vehicle, is separated into a locator unit which produces vehicle locative information and a communicator unit which produces emergency report information including the vehicle locative information produced by the locator unit. Resultant emergency report information is transmitted to an emergency center. The data/signal transmission between the locator unit and the communicator unit is performed via a cable or by wireless.Type: GrantFiled: January 21, 2000Date of Patent: April 23, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Yoshioka, Yasutoshi Nakama
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Patent number: 6337641Abstract: An emergency reporting apparatus for a vehicle includes a communication device. In cases where an emergency occurs in the vehicle, the communication device is used to report the emergency to an emergency report receiving center. A user is informed of an operating condition of the communication device when the communication device is used to report the emergency. The communication device may include a radio communication device.Type: GrantFiled: January 21, 2000Date of Patent: January 8, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Yoshioka, Yasutoshi Nakama, Masashi Yamamoto
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Patent number: 6310543Abstract: An emergency call system disposed in a vehicle for sending data such as on the present location of the vehicle as well as a registered details of the vehicle to an emergency call system-governing center such as a police station and an emergency call center in case of emergency such as a traffic accident or sudden illness, the improvement wherein emergency call system terminal equipment is controllable from the outside thereof.Type: GrantFiled: February 15, 2000Date of Patent: October 30, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Yoshioka, Yasutoshi Nakama, Masashi Yamamoto
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Patent number: 5742688Abstract: A sound field controller of the invention reproduces a sound field which provides a distance perspective depending on a position of a sound image for a listener. The sound field controller includes: an A/D converter; a signal processing section for processing the digital signal using predetermined parameters, and generating a sound signal; an input device for inputting conditions which include a position of a sound image to be localized and a distance from a listener; a parameter controller for setting the parameters in the signal processing section so that the sound signal has characteristics in accordance with the input conditions; a D/A converter; and a reproducing unit for amplifying and reproducing the signal output from the D/A converter.Type: GrantFiled: February 3, 1995Date of Patent: April 21, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Michiko Ogawa, Akihisa Kawamura, Masaharu Matsumoto, Toshihiko Date, Tadashi Tamura, Yasutoshi Nakama
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Patent number: 5416846Abstract: The noise control system of this invention includes: a noise detector for detecting a noise generated from a noise source in order to output a noise detection signal; an adaptive filter portion for outputting a control signal based on the noise detection signal so as to cancel the noise; a control loudspeaker for receiving the control signal that is to radiate a control sound to a predetermined region; and an error detector for detecting a residual error of the noise and the control sound in the predetermined region, wherein the adaptive filter portion includes: an adaptive filter for receiving the noise detection signal and processing the noise detection signal to output a control signal; an IIR filter section for receiving the noise detection signal, performing a filtering process to the noise detection signal according to a predetermined frequency characteristic, and outputting a first processing signal; an operation section for receiving the first processing signal, performing convolution with the first pType: GrantFiled: May 25, 1994Date of Patent: May 16, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tadashi Tamura, Kenichi Terai, Hiroyuki Hashimoto, Yasutoshi Nakama
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Patent number: 5388160Abstract: In a noise suppressor, a noise signal detected by a first detector is inputted to an adaptive filter and a FIR filter. An output signal of the adaptive filter is reproduced by a speaker. The signal reproduced by the speaker and a noise signal from a noise source are detected by a second detector. The signal detected by the second detector is band-limited by a filter circuit and sent to a LMS computing circuit. The LMS computing circuit updates a coefficient of the adaptive filter so as to minimize an output signal of the filter circuit in response to an output signal of the FIR filter and an output signal of the filter circuit.Type: GrantFiled: June 8, 1992Date of Patent: February 7, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Hashimoto, Kenichi Terai, Yasutoshi Nakama, Hironari Ogata, Chie Yano
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Patent number: 5377276Abstract: An active noise controller includes a prediction filter which includes a delayer for delaying the noise or error detection signal by a predetermined period of time, a first adaptive filter for processing the output of the delayer to deliver its periodic component, and a subtractor for subtracting the output of the first adaptive filter from the noise detection signal to deliver a random component of the signal. More specifically, the prediction filter is capable of dividing the noise or error detection signal into two, periodic and random, components. In addition, two, second and third, adaptive filters are provided for processing the periodic and random components respectively. Accordingly, the second and third adaptive filters become responsive precisely to their respective periodic and random components regardless of the ratio in level between the two components, whereby any undesired noise consisting of the two discrete components will be suppressed.Type: GrantFiled: September 8, 1993Date of Patent: December 27, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenichi Terai, Yasutoshi Nakama, Hiroyuki Hashimoto, Tadashi Tamura
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Patent number: 4924962Abstract: A sound reproducing apparatus for use in a vehicle having a speaker system constituted by at least one acoustic duct and a speaker unit disposed at a throat of the acoustic duct, an opening formed at the other end of the acoustic duct facing the passenger compartment of a vehicle. The apparatus is arranged such that, F0 and Fs are substantially equal to each other. Where Fs is the lowest frequency in a frequency range within which the imaginary part of the acoustic impedance at the sound radiating surface of the speaker system in the direction of the space within the passsenger compartment is zero and F0 is the low-range resonance frequency of the speaker system itself in the free space.Type: GrantFiled: July 10, 1987Date of Patent: May 15, 1990Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenichi Terai, Shuji Saiki, Kousaku Murata, Katsuaki Satoh, Yoichi Kumura, Yasutoshi Nakama, Michiko Ogawa, Shuichi Obata
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Patent number: 4790014Abstract: An analog sound signal is outputted. Low-frequency components are selected from the outputted analog sound signal so that a low-pitched sound signal is derived from the analog sound signal. A key of the low-pitched sound signal is lowered so that a very-low-pitched sound signal is derived from the low-pitched sound signal. The analog sound signal and the very-low-pitched sound signal may be converted into corresponding sounds respectively.Type: GrantFiled: March 30, 1987Date of Patent: December 6, 1988Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Watanabe, Katsuhiko Hayashi, Nobuaki Minakuchi, Masayuki Misaki, Kenichi Terai, Yasutoshi Nakama, Masaharu Morita
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Patent number: 4722009Abstract: In a tone-restoring apparatus, a first and a second hold circuit latch at a period of 2T data signals read from a digital memory in response to a first and a second address supplied to the digital memory, and a first and a second multiplier circuit multiply the data signals latched in the first and second hold circuit by a monotonically increasing weighting function W.sub.1 (x) (0.ltoreq.x.ltoreq.NT, 0.ltoreq.W.sub.1 (x).ltoreq.1) or a monotonically increasing weighting function W.sub.2 (x) (0.ltoreq.x.ltoreq.NT, 0.ltoreq.W.sub.2 (x).ltoreq.1). An adder circuit adds the output signals from the first and second multiplier circuits to each other.Type: GrantFiled: April 1, 1986Date of Patent: January 26, 1988Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasutoshi Nakama, Masayuki Misaki, Seiichi Ishikawa
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Patent number: 4584701Abstract: A reverberator comprises a tapped delay line (2, 3, 4, 5, 10) connected to an analog audio signal source (1) for deriving therefrom at least one pair of output signals which are respectively delayed by first and second different values with respect to the source signal, the ratio of the first to second values being an irrational number. A recirculating delay line (6, 7, 11, 12) is connected to the output of the tapped delay line having a delay element (63, 73, 113, 123) for introducing an additional delay to the output signals of the tapped delay line and a resistive recirculating path (65, 75, 115, 125) for recirculating the additionally delayed signals through the delay element. The output of the recirculating delay line is combined with the source signal to derive a reverberating audio signal.Type: GrantFiled: December 27, 1983Date of Patent: April 22, 1986Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasutoshi Nakama, Koji Watanabe