Stereo synchronizing signal generator for liquid crystal shutter glasses
US6687399B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2000 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Apr 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/341
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereo synchronizing signal generator for liquid crystal shutter glasses is provided. The stereo synchronizing signal generator includes a signal generating unit to generate preliminary shuttering signals according to an image vertical synchronizing signals and a start signal. A signal delaying unit is provided to delay the preliminary shuttering signals according to a value, which can be changed by users. Then an output unit is provided to transmit the delayed shuttering signals to the liquid crystal shutter glasses. Due to that the signal generating unit generates a predetermined shuttering signal, such as right eye shuttering signal, at the rise edge of the start signal, the shuttering signals can always match up to the right image. Furthermore, the signal delaying unit can adjust the timing of the shuttering signal according to the value of the register, therefore the shuttering signals can always be synchronized with the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.