Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Shojiro Matsuo

Kazunori Hayashi

Shuichi Watanabe

Toshimichi Tokuda

Shinichi Shigenaga

Akitoshi Izumi

Tadashi Maki

Hiroyuki Matsumoto

Hirotaka Sawa

Hisashi Tsuji

Shintaro Yoshikuni

Teppei Fukuda

Kosuke Shinozaki

Takashi Hirabara

Keisuke Fujimoto

Hirokazu Tasaka

Masakazu Hoashi

Ryoichi Yuge

Susumu Ono

A directionality control system includes: a camera; a microphone provided as a separate body from the camera; a display that displays video data captured by the camera; and a processor that computes a sound collection direction, which is directed from the microphone toward a sound position corresponding to a designated position in the video data. The processor computes the sound collection direction by using parameters including: a first height of the camera from a reference surface, a second height of the microphone from the reference surface, a third height of a computation reference point from the reference surface, the computation reference point being positioned in the sound collection direction at a position different from the sound position, a direction which is directed from the camera toward the sound position, and a fourth height of the sound position from the reference surface.

Directionality control system, calibration method, horizontal deviation angle computation method, and directionality control method

Sound collection directionality is formed toward a location corresponding to a position designated in a video of a predetermined region which is imaged by a camera apparatus with a microphone array apparatus as a reference, and audio data is collected with high accuracy. In a directionality control system (), a signal processing unit () derives a sound collection direction (&#x3b8;,&#x3b8;) which is directed from an installation position of a microphone array apparatus () toward a sound position corresponding to a position designated in video data on a screen of the display device () in response to a user's designation of any position in the video data displayed on the screen. The signal processing unit () forms sound collection directionality of audio data in the derived sound collection direction (&#x3b8;,&#x3b8;).

A recorder receives designation of a video which is desired to be reproduced from a user. If designation of one or more designated locations where sound is emphasized on a screen of a display which displays the video is received by the recorder from the user via an operation unit during reproduction or temporary stopping of the video, a signal processing unit performs an emphasis process on audio data, that is, the signal processing unit emphasizes audio data in directions directed toward positions corresponding to the designated locations from a microphone array by using audio data recorded in the recorder. A reproducing device reproduces the emphasis-processed audio data and video data in synchronization with each other.

Sound processing system and processing method that emphasize sound from position designated in displayed video image

A directivity control apparatus controls a directivity of a sound collected by a sound collecting unit including a plurality of microphones. A beam forming unit forms a beam in a direction from the sound collecting unit toward a sound source corresponding to a position designated in an image on a display unit. A magnification setting unit sets a magnification for magnifying or demagnifying the image in the display according to an input. The beam forming unit also changes a size of the formed beam in accordance with the magnification set by the magnification setting unit.

Directivity control apparatus, directivity control method, storage medium and directivity control system

A mirror sub-carrier demodulation circuit includes a waveform generation unit, which generates a composite waveform of received I and Q signals, and a peak detection unit, which detects peak values of the composite waveform generated by the waveform generation unit. The demodulation circuit also includes a peak interval detection unit, which detects an interval of the peak values detected by the peak detection unit and generates timing at which the received data is input. The demodulation further includes a temporary storage unit, which stores I data and Q data at the timing generated by the peak interval detection unit, a calculation unit, which performs a correlation calculation using the I data and the Q data of the temporary storage unit acquired during a 1-bit period on the basis of a setting value M of a mirror sub-carrier, and a data determination unit, which determines data of 0 or 1 from the result calculated by the calculation unit.

Mirror sub-carrier demodulation circuit, receiving device with the same, and mirror sub-carrier demodulating method

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Fukuoka, Japan

Shojiro Matsuo