Title:
VIDEO DEVICE
Document Type and Number:
Japanese Patent JPS6460069
Kind Code:
A
Abstract:
PURPOSE:To easily execute the fitting of a microphone device to a video camera without complicated adjustment of an initial setting, etc., by supplying a detecting signal from the zoom condition detecting means of a photographing image to the microphone device and executing the zoom of a sound and image in correspondence to the zoom condition of the photographing image. CONSTITUTION:A microphone device 2 is composed of two piece of primary sound pressure gradient single directional microphone units 21 and 22 arranged at a prescribed interval with respectively facing front to a sound source, a decode means 25 to decode the detecting signal from a zoom condition detecting means 11 of a video camera 1 and a mixing means 26 to mix respective outputs from two piece of the microphone units 21 and 22 with a mixing ratio to correspond to an output from the decode means 25. The directivity of the microphone device 2 is made variable from primary sound pressure gradient single directivity to secondary sound pressure gradient single directivity in correspondence to the zoom condition of the photographing image and the zoom of the sound and image is executed. Thus, the zoom of the sound and image is executed in correspondence to the zoom condition of the photographing image.
More Like This:
Inventors:
WAKIZAKA AKIO
Application Number:
JP21617187A
Publication Date:
March 07, 1989
Filing Date:
August 29, 1987
Export Citation:
Assignee:
SONY CORP
International Classes:
H04R3/00; G03B31/00; H04N5/225; (IPC1-7): G03B31/00; H04N5/225; H04R3/00
Attorney, Agent or Firm:
Akira Koike