Video camera and image input device connected through signal line for transferring multiplex data, and image input system using them
US5550586A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Mar 24, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video camera including an imager and an analog-to-digital (A/D) convertor for converting video signals read out from the imager to digital image data, for applying the digital image data to an image input device for converting the digital image data to a data format used in an external information processing unit, through a signal line. The video camera further includes an input portion for inputting control data inputted thereto from the image input device through the signal line and producing an output, a control circuit for controlling operation states of the video camera in accordance with the control data from the input portion and a mode switching circuit. The mode switching circuit switches the output portion between a first mode in which it can output multiplexed data and a second mode in which it cannot output the multiplexed data, in synchronism with a sync signal for driving the imager, and switches the input portion between a third mode in which it can input the control data when the output portion is in the second mode, and a fourth mode in which it cannot input the control data when the output portion is in the first mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.