Patent ID: 7673955
Filing Date: 2010-03-09
Classification: B41J

Abstract:
1. A correction device receiving first and second phase signals, wherein each of the phase signals are periodical signals, the correction device comprising: a first circuit configured to generate a first processing signal to control an electronic device, wherein the first processing signal is composed of first and second pulse signals, and wherein the first circuit generates the first pulse signal in response to a level change variation of the first phase signal, and the first circuit generates the second pulse signal in response to a level change variation of the second phase signal; a second circuit configured to generate a second processing signal to control the electronic device, wherein the second circuit generates the second processing signal in response to the level change variation of at least one of the first and second phase signals; a third circuit configured to generate a third processing signal to control the electronic device, wherein the third circuit generates the third processing signal in response to the level change variation of at least one of the first and second phase signals; and a selector configured to acquire first, second, third, and fourth time intervals from adjacent first and second pulse signals based on the first processing signal, wherein the selector is configured to select the first processing signal, the second processing signal, or the third processing signal to control at least one of a speed or a position of the electronic device, and further wherein the selector is configured to select—