Monitor screen-integrated video camera
US5559554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1994 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Jul 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/125
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An address for a character generator ROM is composed of an upper readout address portion which is a character code loaded from a text memory for storing texts edited by a microcomputer and a lower readout address portion which is a value of a counter. Output data from the character generator ROM accessed by the above addresses are loaded in parallel by left-shift and right-shift registers. The output data is serialized by the left-shift register to form character pattern data, which in turn is superimposed on a video picture signal to be outputted to a VTR portion. In response to a self-image picture taking mode signal, one output is selected by a selector from the output of the left-shift register and the output of the right-shift register. The thus selected output is superimposed over the video picture signal to be delivered to a monitor screen driver circuit. The monitor screen driver circuit horizontally inverts the scanning direction in order to display a mirror-image of the picture on the monitor screen when the video camera is operated in the self-image picture taking state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.