1. A height adjustment structure for a scanning device, wherein the scanning device includes an optical system, a document panel and a guiding rod, the optical system and the guiding rod are located under the document panel and the document panel is fixed relative to the guiding rod, the optical system further includes a box body and an axial rod bearer, the axial rod bearer is on one side of the box body and the axial rod bearer has a positioning hole whereinto the guiding rod is slid so that the optical system moves horizontally along an axial direction of the guiding rod, the height adjustment structure is a device for adjusting a relative position between the box body and the axial rod bearer so that distance from the box body to the document panel is adjustable, the height adjustment structure comprising:
a first positioning section attached to one side of the box body facing the axial rod bearer, wherein the first positioning section has a plurality of plugging slots having openings on an exterior surface and the slots spreads out vertically; and
a second positioning section attached to one side of the axial rod bearer facing the box body, wherein the second positioning section has at least one hook protruding from an exterior surface such that the hook may plug into one of the slots in the first positioning section.
2. The structure of claim 1, wherein the first positioning section and the box body are formed together as an integrated unit.
3. The structure of claim 1, wherein the second positioning section and the axial rod bearer are formed together as an integrated unit.
4. The structure of claim 1, wherein the first positioning section and the box body are locked together by screws.
5. The structure of claim 1, wherein the second positioning section and the axial rod bearer are locked together by screws.
6. A height adjustment structure for a scanning device, wherein the scanning device includes an optical system, a document panel and a guiding rod, the optical system and the guiding rod are located under the document panel and the document panel is fixed relative to the guiding rod, the optical system further includes a box body and an axial rod bearer, the axial rod bearer is on one side of the box body and the axial rod bearer has a positioning hole whereinto the guiding rod is slid so that the optical system moves horizontally in an axial direction of the guiding rod, the height adjustment structure is a device for adjusting a relative position between the box body and the axial rod bearer so that distance from the box body to the document panel is adjustable, the height adjustment structure comprising:
a first positioning section attached to one side of the box body facing the axial rod bearer, wherein the first positioning section has at least a threaded hole having an axis perpendicular to the document panel;
a second positioning section attached to one side of the axial rod bearer facing the box body, wherein the second positioning section has at least one through hole having an axis aligned with the axis of the threaded hole; and
at least one screw that passes through the through hole and screws into the threaded hole, wherein depth of the screw inside the threaded hole depends on a required distance between the box body and the axial rod bearer.
7. The structure of claim 6, wherein the first positioning section and the box body are formed together as an integrated unit.
8. The structure of claim 6, wherein the second positioning section and the axial rod bearer are formed together as an integrated unit.
9. The structure of claim 6, wherein the first positioning section and the box body are locked together by screws.
10. The structure of claim 6, wherein the second positioning section and the axial rod bearer are locked together by screws.
11. A height adjustment structure for a scanning device, wherein the scanning device includes an optical system, a document panel and a guiding rod, the optical system and the guiding rod are located under the document panel and the document panel is fixed relative to the guiding rod, the optical system further includes a box body and an axial rod bearer, the axial rod bearer is on one side of the box body and the axial rod bearer has a positioning hole whereinto the guiding rod is slid so that the optical system moves horizontally along the axial direction of the guiding rod, the height adjustment structure is a device for adjusting a relative position between the box body and the axial rod bearer so that distance from the box body to the document panel can be adjusted, the height adjustment structure comprising:
a first positioning section attached to one side of the box body facing the axial rod bearer, wherein the first positioning section has a first set of teeth protruding from one side face of the first positioning section and panning out from bottom to top in a vertical direction;
a second positioning section attached to one side of the axial rod bearer facing the box body, wherein the second positioning section has a second set of teeth protruding from one side face of the second positioning section and having a teeth profile matching the teeth in the first set so that relative position of the box body and the axial rod bearer is adjustable by meshing the second set at a suitable location with the first set; and
a locking element that links up and fixes a position of the first positioning section relative to the second positioning section.
12. The structure of claim 11, wherein the first positioning section and the box body are formed together as an integrated unit.
13. The structure of claim 11, wherein the second positioning section and the axial rod bearer are formed together as an integrated unit.
14. The structure of claim 11, wherein the first positioning section and the box body are locked together by screws.
15. The structure of claim 11, wherein the second positioning section and the axial rod bearer are locked together by screws.
16. The structure of claim 11, wherein the locking element includes a threaded screw and the threaded screw tightens up the first and the second positioning section together.
17. The structure of claim 11, wherein the locking element includes a latching unit, the latching unit comprises a pair of latching hooks and a pair of latching blocks attached to the sides of the first positioning section and the second positioning section, respectively, wherein the latching hooks click onto the latching blocks after a suitable position for engaging the first and the second set of teeth is found.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A system comprising:
a source;
a source port to transmit video data from the source and to receive origin data from a display device;
a controller in the source to compare an origin of the display device to an origin in the source and set the color levels for the video data based on the origin.
2. The system of claim 1, wherein the resolution of the display device is determined by the controller and wherein the color level is determined by the controller according to the resolution if the source and the display device are not from the same origin.
3. The system of claim 1, wherein the resolution of the display device is determined by the controller, wherein the controller sets the color level according to the origin of the source and the display device independent of the resolution of the display device.
4. The system of claim 1, further comprising a display storage on the display device to store data about the origin of the display device.
5. The system of claim 1, further comprising a source storage on the source device to store data about the origin of the display device.
6. The system of claim 1, further comprising a storage on the source that stores multiple origins in the source that are compared to the origin data from the display device.
7. The system of claim 1, wherein the source port accepts an HDMI cable and the display port accepts an HDMI cable.
8. The system of claim 1, further comprising storage that stores personal computer color levels and consumer electronics color levels.
9. The system of claim 8, wherein the controller is to access the personal computer color levels if the origin of the source and the display device are the same.
10. The system of claim 8, wherein the controller determines if the resolution of the display device is a personal computer resolution or a consumer electronics resolution.
11. The system of claim 10, wherein the controller is to access the consumer electronics color level if the origin of the source and the display device are not the same and the resolution is a consumer electronics resolution.
12. A color level control method, comprising:
determining a origin of a display device using a controller on a source device;
determining a origin of the source device and comparing the origins;
setting a color level according to the comparison of the origin; and
transmitting a video signal using the color level set.
13. The method of claim 12, further comprising determining the resolution of the display device.
14. The method of claim 13, further comprising accessing consumer electronic color level if the display resolution is a consumer electronic resolution and the origin of the display device and the source device is not the same.
15. The method of claim 12, further comprising accessing a personal computer color level is the origin of the display device and the source device are the same.
16. The method of claim 12, further comprising increasing the number of color levels if the origin of the display device and the source device are the same.
17. A computer readable medium comprising instructions that if executed cause a computer to:
determine the origin of a display device using a controller on the computer;
determine the origin of the computer and compare the origins;
set a color level according to the comparison of the origin; and
transmit a video signal using the color level set.
18. The computer readable medium of claim 17 further comprising instructions to determine the resolution of the display device.
19. The computer readable medium of claim 17 further comprising instructions to further comprising accessing consumer electronic color level if the display resolution is a consumer electronic resolution and the origin of the display device and the source device is not the same.
20. The computer readable medium of claim 17 further comprising instructions to increase the number of color levels if the origin of the display device and the source device are the same.