Increasing scanning resolution through driving system control
View Patent ↗A method of increasing the scanning resolution of a scanner through controlling its driving system. By suitably adjusting the timing relationship between motor pulses and exposure pulses, a low-resolution driving system can produce a high-resolution image with no additional production cost incurred.
1. A method of increasing scanning resolution of a scanner through controlling its driving system, comprising the steps of:
providing shift gate clock pulses to a charge-coupled device such that one shift gate clock pulse period corresponds to an exposure cycle for the charge-coupled device; and
providing motor pulses to a motor such that one motor pulse period corresponds to a plurality of exposure cycles for the charge-coupled device.
2. The method of claim 1 , wherein the motor includes a stepper motor.
3. A method of increasing scanning resolution of a scanner through controlling its driving system, comprising the steps of:
providing motor pulse signals to a driving motor of the scanner;
providing shift gate clock pulse signals to a charge-coupled device of the scanner; and
adjusting a timing relationship between the motor pulse and the shift gate clock pulse such that one motor pulse cycle corresponds to a plurality of shift gate clock pulse cycles.
4. The method of claim 3 , wherein one shift gate clock cycle corresponds to an exposure cycle for the charge-coupled device.
5. The method of claim 3 , wherein the motor includes a stepper motor.
6. The method of claim 1 , further comprising providing motor pulses to a motor such that one motor pulse period corresponds to two exposure cycles for the charge- coupled device.
7. The method of claim 3 , further comprising adjusting a timing relationship between the motor pulse and the shift gate clock pulse such that one motor pulse cycle corresponds to four shift gate clock pulse cycles.
8. An apparatus, comprising:
a driving controller of a scanning device having a driving motor and a charge - coupled device, said driving controller adapted to:
provide motor pulse signals to the driving motor;
provide shift gate clock pulse signals to the charge - coupled device; and
adjust a timing relationship between the motor pulse and the shift gate clock pulse such that one motor pulse cycle corresponds to a plurality of shift gate clock pulse cycles.
9. The apparatus of claim 8 , wherein said driving controller is further adapted to:
adjust the timing relationship between the motor pulse and the shift gate clock pulse such that one shift gate clock cycle corresponds to an exposure cycle for the charge - coupled device.
10. The apparatus of claim 8 , wherein the motor comprises a stepper motor.
11. The apparatus of claim 8 , wherein said driving controller is further adapted to:
adjust a timing relationship between the motor pulse and the shift gate clock pulse such that one motor pulse cycle corresponds to two shift gate clock pulse cycles.
12. An apparatus, comprising:
a scanner driving system of a scanner, adapted to:
provide shift gate clock pulses to a charge - coupled device of the scanner such that one shift gate clock pulse period corresponds to an exposure cycle for the charge - coupled device; and
provide motor pulses to a motor of the scanner such that one motor pulse period corresponds to a plurality of exposure cycles for the charge - coupled device.
13. The apparatus of claim 12 , wherein the motor comprises a stepper motor.
14. The apparatus of claim 12 , wherein said scanner driving system is further adapted to:
provide motor pulses to a motor of the scanner such that one motor pulse period corresponds to four exposure cycles for the charge - coupled device.