Patents by Inventor Toru Futami

Toru Futami 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).

  • Patent number: 4637045
    Abstract: A speech recognition system for an automotive vehicle enables desired reference spoken instruction phrases to be easily re-recorded by repeatedly depressing a manual switch arrangement that commands skipping. Each activation of the switch shifts the system from a ready state for recording the current spoken instruction to a ready state for recording a succeeding spoken instruction. By repeatedly activating the skip switch ready state for re-recording any given spoken instruction is reached. In one embodiment, a separate skip switch is provided. In a second embodiment, logic circuitry responds to simultaneous activation of record and recognition switches to command skipping.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: January 13, 1987
    Assignee: Nissan Motor Company
    Inventors: Kazunori Noso, Norimasa Kishi, Toru Futami
  • Patent number: 4610023
    Abstract: An automotive vehicle speech recognition system sets a recording-mode reference threshold level to be lower than a recognition-mode reference threshold level. Therefore, a spoken instruction supplied to the system in a low voice while the vehicle is parked in a quiet place during a record mode can be correlated with an instruction uttered in a loud voice during a recognition mode while the vehicle is running in a noisy environment. During the record and recognition modes reference threshold signals derived by smoothing a spoken instruction are multiplied by two different factors such that the reference threshold in the recognition mode has a greater multiplication factor than the reference threshold in the record mode. While the driver is uttering a command a first smoothed version of the utterance power spectrum is compared with a fixed reference threshold level, set to the value of a second smoothed version of the utterance power spectrum at the time the utterance began.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: September 2, 1986
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazunori Noso, Norimasa Kishi, Toru Futami
  • Patent number: 4606022
    Abstract: A data transmitting/receiving network system connects a plurality of stations via a data transmission bus line in a time sharing mode. A specially encoded clocking signal cycles through a plurality of unique states and each station is allowed to transmit/receive in one of the unique cycles. Each station is equipped with serial-to-parallel reception and parallel-to-serial transmission so that a plurality of bits can be transmitted/received in each cycle. Parity error checking is performed on the transmitted/received bit parcels.
    Type: Grant
    Filed: March 23, 1984
    Date of Patent: August 12, 1986
    Assignee: Nissan Motor Company, Limited
    Inventors: Tadashi Suzuki, Norimasa Kishi, Minoru Tomikashi, Toru Futami
  • Patent number: 4581731
    Abstract: A receiver is applied to optical communication using an optical pulse signal carrying data which is cyclically updated. The optical signal is converted to a corresponding electrical pulse signal. The data is extracted from the electrical signal. The extracted data from successive cycles are compared. In response to the result of comparison between the data, a determination is made as to the number of cycles in which the extracted data is at a given value. When the determined number of cycles reaches a variable preset number, a previously used data value is replaced by the given value. The amplitudes of the electrical signal pulses are compared with a reference level. The preset number is varied in accordance with the result of comparison between the pulse amplitudes and the reference level.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: April 8, 1986
    Assignee: Nissan Motor Company, Limited
    Inventors: Minoru Tomikashi, Norimasa Kishi, Tadashi Suzuki, Toru Futami
  • Patent number: 4558459
    Abstract: In a speech recognition and control system for an automobile, the microphone preamplifier gain is made inversely proportional to the background sound noise level. Noise level is determined by averaging the microphone output for 100 milliseconds after the recognition switch is closed, before speech.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: December 10, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazunori Noso, Norimasa Kishi, Toru Futami
  • Patent number: 4532648
    Abstract: A speech recognition system for an automotive vehicle which can record or recognize spoken instruction phrases reliably even when engine noise increases high within the passenger compartment. When the engine begins to operate, the gain of an amplifier of a speech input section or the threshold level of a voice detector is so switched as to reduce the sensitivity to spoken instructions. As a result, the driver must necessarily utter a spoken instruction in a louder voice and thus the proportion of noise level to spoken instruction signal level is reduced. The system according to the present invention comprises engine operation detecting means, an analog switch, two amplifiers or two multipliers, etc. in addition to the conventional speech recognizer.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: July 30, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazunori Noso, Norimasa Kishi, Toru Futami
  • Patent number: 4531228
    Abstract: A speech recognition system includes speech presence detection which uses a first level threshold of ambient noise/silence above which speech start is decided for a signal. Speech end is decided when the signal falls to a second threshold equal to the first, unless a predetermined time interval of speech is exceeded after start, causing a corrected second threshold to be calculated and used.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: July 23, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazunori Noso, Norimasa Kishi, Toru Futami
  • Patent number: 4528687
    Abstract: A speech recognition and actuator system for auto device control includes a recognition switch which when operated a first time activates the system to accept a spoken command, and if operated a second time within a predetermined interval T1 (approximately 2 seconds) stops the actuation and awaits a new command. Additional timers provide interval T2 for a stop command, and T3 for enabling the speech recognizer. The system may also include a reset switch when operated returns the actuated device to its original state.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 9, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazunori Noso, Norimasa Kishi, Toru Futami
  • Patent number: 4506377
    Abstract: A spoken-instruction controlled system for an automotive vehicle by which a single actuator can be activated repeatedly or a plurality of actuators can be activated sequentially by repeatedly depressing a recognition switch within a predetermined time period after a spoken instruction corresponding to the single actuator or actuators has been recognized by a speech recognizer. Therefore, it is possible to activate an actuator repeatedly or actuators sequentially without uttering the same spoken instruction repeatedly. The spoken-instruction controlled system according to the present invention comprises a two-circuit analog switch, at least one analog switch, at least one retriggerable timer unit, an AND gate, an OR gate, a shift register, etc., in addition to a speech recognizer.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: March 19, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Norimasa Kishi, Kazunori Noso, Toru Futami
  • Patent number: 4506378
    Abstract: To avoid pinched fingers, a verbal "Stop Window" command causes a stop and momentary reversal of window motion. A spoken-instruction controlled system for an automotive vehicle which can stop a moving device such as a door window closing device after having driven it reversely for a fixed period when a spoken instruction is inputted thereto through a microphone. In the system according to the present invention, even if there exists a time delay from when the driver utters the spoken instruction to when the device stops perfectly, it is possible to stop the device at or before a position at which the driver utters the spoken instruction. The system according to the present invention comprises at least one motor reversing controller and a timer unit, in addition to the conventional spoken-instruction controller including at least one switch, at least one motor stop controller and a speech recognizer.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: March 19, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazunori Noso, Norimasa Kishi, Toru Futami, Hiroyuki Nomura, Yasuhiro Shiraishi