Abstract | ||
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This paper presents a new skew control technique for a high speed mobile display serial interface. Unstable frequency and distorted duty ratio of recovered clock from the skew of data and strobe can be adjusted simultaneously by the proposed adaptive strobe delay controller (ASDC). Clock regulation is important because a raster image is re-constructed by using pixel clock from serialized host sending image data. By converting detected skews to voltage level and using a voltage controlled delay line (VCDL), the proposed adaptive skew control technique solves the problems of image distortion which are caused by several mismatched skew elements between data and exclusive OR (XOR) encoded strobe signal. The proposed skew controller and its related transceiver were implemented and also verified using a mega-pixel mobile image sensor. This technique has an output duty error of less than 3% under the instantaneous duty error of 20% and the implemented systems shows a good image quality from 500 MHz to 1 GHz normal operation with 3.5 mW power dissipation. |
Year | DOI | Venue |
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2011 | 10.1109/TCE.2011.5735475 | IEEE Trans. Consumer Electronics |
Keywords | Field | DocType |
mismatched skew element,image distortion,raster image,image data,mobile display serial transceiver,new skew control technique,good image quality,proposed adaptive skew control,clock regulation,mega-pixel mobile image sensor,proposed skew controller,data-strobe encoding,mobile communication,image reconstruction,image quality,data strobe encoding,display devices,image sensors,power dissipation,normal operator,edge detection,image sensor,adaptive control | Control theory,Transceiver,Computer science,Duty cycle,Image quality,Display Serial Interface,Electronic engineering,Skew,Adaptive control,Data strobe encoding | Journal |
Volume | Issue | ISSN |
57 | 1 | 0098-3063 |
Citations | PageRank | References |
0 | 0.34 | 2 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Eung-Ju Kim | 1 | 7 | 2.68 |
Ho-Young Park | 2 | 2 | 2.18 |
Choon Ki Ahn | 3 | 1218 | 81.53 |
Shin-il Lim | 4 | 8 | 10.10 |
Suki Kim | 5 | 138 | 39.60 |