Control cable extension unit for pan/tilt camera

• US 20030076422A1
• Filed: 09/04/2002
• Published: 04/24/2003
• Est. Priority Date: 10/22/2001
• Status: Abandoned Application

• Current Assignee: Elmo Co., Ltd. (TECHNO HORIZON Co., Ltd.)
• Original Assignee: Elmo Co., Ltd. (TECHNO HORIZON Co., Ltd.)
• Inventors: Mishima, Hiroyuki, Ito, Tomokazu
• Application Number:
  US10/234,601
• Publication Number:
  US 20030076422A1
• Time in Patent Office: Days
• US Class Current: 348/211.5
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices
• CPC Class Codes: H04N 7/185 from a mobile camera, e.g. for remote control

Abstract

A control cable extension unit for a pan/tilt camera is used between the pan/tilt camera and a pan/tilt camera controller and is connected via a coaxial multiplex communication cable to the pan/tilt camera and is further connected via a control cable to the pan/tilt camera controller. The extension unit includes a signal input section to which the pan/tilt camera controller supplies a control signal, a signal processing section for processing the control signal supplied to the signal input section, delivering various commands for operating the pan/tilt camera a signal output section for transmitting the commands delivered by the signal processing section on the basis of a synchronizing signal to the pan/tilt camera during a blanking period in which no video signal is generated by the pan/tilt camera.

Claims

1. A control cable extension unit for a pan/tilt camera, which is provided between the pan/tilt camera and a pan/tilt camera controller and which is connected via a coaxial multiplex communication cable to the pan/tilt camera and is further connected via a control cable to the pan/tilt camera controller, the extension unit comprising:

a signal input section to which the pan/tilt camera controller supplies a control signal;

a signal processing section for processing the control signal supplied to the signal input section, delivering various commands for operating the pan/tilt camera; and

a signal output section for transmitting the commands delivered by the signal processing section on the basis of a synchronizing signal to the pan/tilt camera during a blanking period in which no video signal is generated by the pan/tilt camera.

2. A control cable extension unit according to claim 1, wherein the signal input section includes a wireless receiving section and a connecting section connecting the wireless receiving section to a communication cable, wherein the signal processing section includes a body comprising a microcomputer executing a processing software installed, and wherein the signal output section is provided with a programmable logic device, a synchronization separator circuit, a bias circuit, a video output terminal and a BNC terminal.

3. A control cable extension unit according to claim 2, wherein the wireless receiving section receives a remote control signal from a wireless remote control, and the signal processing section processes the remote control signal received by the wireless receiving section thereby to deliver various commands for operating the pan/tilt camera.

4. A control cable extension unit according to claim 3, wherein the remote control signal is an infrared signal.