All The Claims

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A welding-type power supply comprising:
a power circuit, including at least one switch having a control input;
a temperature sense circuit, disposed to sense a temperature produced by the at least one switch, and having a temperature output indicative of the sensed temperature;
a switch feedback circuit, disposed to sense at least one switch operating parameter, and having a switch feedback output signal responsive thereto; and
a controller, including a temperature circuit having as an input, and responsive thereto, the switch feedback output and the temperature output, and providing a control output, wherein the control input of the at least one switch is responsive to the control output.
2. The welding-type power supply of claim 1, wherein the at least one switch operating parameter includes current or a function thereof.
3. The welding-type power supply of claim 2, wherein the at least one switch operating parameter further includes voltage or a function thereof.
4. The welding-type power supply of claim 1, wherein the at least one switch operating parameter includes voltage or a function thereof.
5. The welding-type power supply of claim 1, wherein the temperature circuit includes a look-up table having as an index the at least one switch parameter, and wherein data in the look-up table includes temperature adjust values.
6. The welding-type power supply of claim 2, wherein the temperature circuit includes a look-up table having as an index the switch current, and wherein data in the look-up table includes temperature adjust values.
7. The welding-type power supply of claim 6, wherein the data includes temperature adjust values based on switch current and switch voltage.
8. The welding-type power supply of claim 1, wherein the temperature circuit includes a calculation circuit having as an input the switch feedback output, and having as an output a temperature that includes a temperature adjust value.
9. The welding-type power supply of claim 8, wherein the calculation output is a function of at least one of a switch current and a switch voltage.
10. The welding-type power supply of claim 1, wherein the temperature feedback circuit includes a thermal resistor.
11. A method of providing welding-type power comprising:
controlling a power circuit having at least one switch with a control input;
sensing a temperature produced by the at least one switch;
sensing at least one switch operating parameter, and providing a switch feedback output signal responsive thereto; and
reducing the output of the power circuit in the event the sensed temperature exceeds a corrected threshold, wherein the corrected threshold is responsive to the operating parameter.
12. The method of claim 11, wherein the at least one switch operating parameter includes current or a function thereof.
13. The method of claim 12, wherein the at least one switch operating parameter further includes voltage or a function thereof.
14. The method of claim 11, wherein the at least one switch operating parameter includes voltage or a function thereof.
15. The method of claim 11, further including retrieving a temperature that includes a temperature correction based on the operating parameter.
16. The method of claim 12, further including retrieving a temperature that includes a temperature correction based on the operating parameter.
17. The method of claim 16, wherein the temperature correction is from data including a switch current and a switch voltage.
18. The method of claim 11, further comprising calculating a temperature that includes a temperature adjust value in response to the operating parameter.
19. The method of claim 18, wherein the calculation is a function of at least one of a switch current and a switch voltage.
20. The method of claim 18, wherein the calculation is a function of a switch current and a switch voltage.
21. A welding-type power supply comprising:
power means for providing output power, including at least one switch means for switching in response to a control input;
temperature sense means for sensing a temperature produced by the at least one switch means and for providing a temperature output indicative of the sensed temperature;
feedback means for sensing at least one switch operating parameter and for providing switch feedback output signal responsive thereto; and
control means for controlling the power means, including means for receiving the switch feedback output signal and the temperature output, and for controlling the power means in response thereto, wherein the output of the power means is limited when the temperature produced exceeds a threshold responsive to the operating parameter.
22. The welding-type power supply of claim 21, wherein the feedback means includes means for sensing current.
23. The welding-type power supply of claim 22, wherein the feedback means further includes means for sensing voltage.
24. The welding-type power supply of claim 21, wherein the feedback means includes means for sensing voltage.
25. The welding-type power supply of claim 21, wherein the control means includes means for looking-up a temperature that includes a temperature adjust value in response to the switch feedback output signal.
26. The welding-type power supply of claim 21, wherein the control means includes means for calculating a temperature that includes a temperature adjust value in response to the switch feedback output signal.
27. The welding-type power supply of claim 1, wherein the feedback means includes a thermal resistor.
28. A welding-type power supply for providing welding-type power comprising:
means for controlling a power circuit having at least one switch with a control input;
means for sensing a temperature produced by the at least one switch, connected to the at least one switch;
means for sensing at least one switch operating parameter, and having a switch feedback output signal responsive thereto, connected to the at least one switch; and
means for reducing the output of the power circuit in the event the sensed temperature exceeds a corrected threshold.
29. The welding-type power supply of claim 38, wherein the at least one switch operating parameter includes current or a function thereof.
30. The welding-type power supply of claim 29, wherein the at least one switch operating parameter further includes voltage or a function thereof.
31. The welding-type power supply of claim 28, wherein the at least one switch operating parameter includes voltage or a function thereof.
32. The welding-type power supply of claim 28, further includes means for retrieving a temperature that includes a temperature correction based on the operating parameter.
33. The welding-type power supply of claim 29, further including means for retrieving a temperature that includes a temperature correction based on the operating parameter.
34. The welding-type power supply of claim 28, further comprising means for calculating a temperature that includes a temperature adjust value in response to the operating parameter.
35. The welding-type power supply of claim 34, wherein the means for calculating includes means for calculating as a function of at least one of a switch current and a switch voltage.
36. The welding-type power supply of claim 28, wherein the temperature feedback circuit includes a thermal resistor.

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. An optical writing control device that controls a light source that exposes a photoconductor to light to form an electrostatic latent image on the photoconductor, the optical writing control device comprising:
a light emission control unit that controls the light source to emit light to expose the photoconductor to light and to form an electrostatic latent image and an electrostatic latent correction pattern;
an optical sensor that detects a correction pattern on a conveying member, the correction pattern having been formed by toner on the conveying member by (a) developing the electrostatic latent correction pattern and (b) transferring the correction pattern from the photoconductor onto the conveying member,
the correction pattern having been configured for correcting a transfer position at which a toner image obtained by developing the electrostatic latent image formed on the photoconductor is transferred onto the conveying member and including an oblique line pattern inclined relative to a conveying direction of the conveying member;
a detection signal acquisition unit that acquires a detection signal from the optical sensor that detects the correction pattern formed by the toner on the conveying member;
a correction value calculation unit that calculates, on the basis of the detection signal, a correction value for correcting the transfer position; and
an angle adjustment processing unit that determines an angle of the oblique line pattern included in the correction pattern on the basis of a detection signal obtained by detecting an angle adjustment pattern by the optical sensor, the angle adjustment pattern including a plurality of continuous oblique line patterns having different inclinations relative to the conveying direction,
wherein the light emission control unit controls the light source to emit light so that a plurality of oblique line patterns having different inclinations relative to the conveying direction are continuously formed to draw the angle adjustment pattern, and controls the light source to emit light so that an oblique line pattern having the determined angle is formed in the correction pattern to draw the correction pattern.
2. The optical writing control device according to claim 1, wherein
the angle adjustment processing unit determines, as an angle of the oblique line pattern included in the correction pattern, an angle of an oblique line pattern having the largest detection intensity among detection signals obtained by detecting the angle adjustment pattern by the sensor.
3. The optical writing control device according to claim 2, wherein
when there are a plurality of oblique line patterns that are determined to have the largest detection intensity among detection signals obtained by detecting the angle adjustment pattern by the sensor, the angle adjustment processing unit determines, as an angle of the oblique line pattern included in the correction pattern, an angle of an oblique line pattern having the shortest period during which a detection signal detected by the sensor is varying in conveyance of the conveying member.
4. The optical writing control device according to claim 1, wherein
the light emission control unit controls the light source to emit light so that a correction pattern having a width corresponding to a detection range of the sensor in a main-scanning direction is drawn to draw the correction pattern.
5. The optical writing control device according to claim 1, wherein
the angle adjustment processing unit determines an angle of the oblique line pattern included in the correction pattern on the basis of a detection signal of the angle adjustment pattern that is drawn in a state in which position shift correction is previously performed.
6. The optical writing control device according to claim 5, wherein
the correction value calculation unit calculates a first correction value on the basis of a detection signal of the correction pattern that is drawn with a width having a margin with respect to a detection range of the sensor in the main-scanning direction and calculates a second correction value on the basis of a detection signal of a correction pattern that is drawn by applying the calculated first correction value and has a width corresponding to the detection range of the sensor in the main-scanning direction to perform the previous position shift correction.
7. The optical writing control device according to claim 1, wherein
the light emission control unit controls the light source to emit light so that a plurality of oblique line patterns having different inclinations within the range of 180\xb0 relative to the conveying direction are continuously formed to draw the angle adjustment pattern.
8. An image forming apparatus comprising the optical writing control device according to claim 1.
9. A method for controlling an optical writing device that controls a light source that exposes a photoconductor to light to form an electrostatic latent image on the photoconductor, the method comprising the steps of:
controlling the light source to emit light to expose the photoconductor to light, and to form an electrostatic latent image and an electrostatic latent correction pattern;
detecting a correction pattern on a conveying member with an optical sensor, the correction pattern having been formed by toner on the conveying member upon by (a) developing the electrostatic latent correction pattern and (b) transferring the correction pattern from the photoconductor onto the conveying member, using the correction pattern for correcting a transfer position at which a toner image obtained by developing the electrostatic latent image formed on the photoconductor is transferred onto the conveying member, the correction pattern including an oblique line pattern inclined relative to a conveying direction of the conveying member;
acquiring a detection signal from the optical sensor that detects the correction pattern formed by the toner on the conveying member;
calculating, on the basis of the detection signal, a correction value for correcting the transfer position; and
determining an angle of an oblique line pattern included in the correction pattern on the basis of a detection signal obtained by detecting the angle adjustment pattern by the optical sensor, the angle adjustment pattern including a plurality of continuous oblique line patterns having different inclinations relative to the conveying direction.

1. A computer program product, which when loaded in a computer system, causes the computer system to perform the steps of:
identifying a source waveform;
identifying at least one optimization parameter, wherein said optimization parameter is configured to adjust audio input to a speech recognition application;
applying an optimization algorithm executed by a signal editor, said optimization algorithm being preconfigured to modify said source waveform according to said optimization parameters resulting in a modified waveform;
synchronizing said optimization algorithm and at least one optimization parameter with said source waveform;
displaying a graph for said at least one optimization parameter while also displaying at lest one of said source waveform and said modified waveform;
displaying said at least one optimization parameter and at least a portion of said optimization algorithm with time annotations for synchronizing the algorithm and at least one optimization parameter with the waveforms, wherein displaying synchronously said graph of said at least one optimization parameter with at least one of said source waveform and said modified waveform reveals an optimizing value of the at least one optimization parameter; and
setting at least one adjustable input parameter of an audio input device based upon the optimization value for enhancing the speech recognition capabilities of a speech recognition application, wherein said audio input device is configured to receive audio input for a speech recognition application.
2. The computer program product of claim 1, wherein said displaying step occurs within a graphical user interface, said computer program product further causing the computer system to perform the step of:
adjusting the time span of at least one of said time dependant graphs responsive to an input from a user of said graphical user interface.
3. The computer program product of claim 1, said computer program product further causing the computer system to perform the step of:
altering said optimization parameter responsive to said displaying step.
4. The computer program product of claim 3, wherein said altering step further comprises the step of:
modifying said source waveform according to said altered optimization parameter resulting in a new modified waveform.
5. The computer program product of claim 1, said computer program product further causing the computer system to perform the steps of:
identifying a model waveform;
calculating a difference between said modified waveform and said model waveform; and,
determining at least one parameter which is responsible for at least part of said difference.
6. The computer program product of claim 1, wherein said modifying step further comprises the step of:
generating an ambient waveform, wherein said ambient waveform is the difference between said source waveform minus said modified waveform.
7. The computer program product of claim 1, wherein said algorithm comprises at least one algorithm variable, and wherein said displaying further comprise displaying a graph for said at least one algorithm variable plotted against time.
8. The computer program product of claim 7, said computer program product further causing the computer system to perform the step of:
displaying a debugging window for tracing values of at least one of said algorithm variables through source code execution.
9. The computer program product of claim 8, wherein said debugging window is synchronized with said graphs displayed.

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 light emitting device comprising:
a light emitting element and a first transistor and a second transistor each for controlling current to be supplied to the light emitting element, which are formed in a pixel,
wherein a threshold voltage of the first transistor is lower than a threshold voltage of the second transistor,
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein each polarity of the first transistor and the second transistor is n-type, and
wherein the light emitting element, the first transistor and the second transistor are all connected in series.
2. The light emitting device according to claim 1, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.
3. A display device having the light emitting device according to claim 1.
4. A digital still camera having the light emitting device according to claim 1.
5. A portable information terminal having the light emitting device according to claim 1.
6. A laptop computer having the light emitting device according to claim 1.
7. A mobile computer according to claim 1, wherein the light emitting device is provided.
8. An image reproducing device having the light emitting device according to claim 1.
9. A goggle type display having the light emitting device according to claim 1.
10. A video camera having the light emitting device according to claim 1.
11. A light emitting device comprising:
a light emitting element and a first transistor and a second transistor each for controlling current to be supplied to the light emitting element, which are formed in a pixel,
wherein the first transistor is normally-on,
wherein the second transistor is normally-off,
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein the first transistor and the second transistor have the same polarity, and
wherein the light emitting element, the first transistor and the second transistor are all connected in series.
12. The light emitting device according to claim 11, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.
13. A display device having the light emitting device according to claim 11.
14. A digital still camera having the light emitting device according to claim 11.
15. A portable information terminal having the light emitting device according to claim 11.
16. A laptop computer having the light emitting device according to claim 11.
17. A mobile computer according to claim 11, wherein the light emitting device is provided.
18. An image reproducing device having the light emitting device according to claim 11.
19. A goggle type display having the light emitting device according to claim 11.
20. A video camera having the light emitting device according to claim 11.
21. A light emitting device comprising:
a light emitting element and a first transistor and a second transistor each for controlling current to be supplied to the light emitting element and a third transistor for controlling input of a video signal, which are formed in a pixel,
wherein the first transistor is normally-on,
wherein the second transistor is normally-off,
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein the third transistor, the first transistor, and the second transistor are connected so that a video signal which is inputted by turning ON the third transistor is given to gate electrodes of the first transistor and the second transistor,
wherein the first transistor and the second transistor have the same polarity, and
wherein the light emitting element, the first transistor and the second transistor are all connected in series.
22. The light emitting device according to claim 21, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.
23. A display device having the light emitting device according to claim 21.
24. A digital still camera having the light emitting device according to claim 21.
25. A portable information terminal having the light emitting device according to claim 21.
26. A laptop computer having the light emitting device according to claim 21.
27. A mobile computer according to claim 21, wherein the light emitting device is provided.
28. An image reproducing device having the light emitting device according to claim 21.
29. A goggle type display having the light emitting device according to claim 21.
30. A video camera having the light emitting device according to claim 21.
31. A light emitting device comprising:
a light emitting element and a first transistor and a second transistor each for controlling current to be supplied to the light emitting element and a third transistor for controlling input of a video signal and a fourth transistor for controlling supply of power supply potential, which are formed in a pixel,
wherein the first transistor is normally-on,
wherein the second transistor is normally-off,
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein the third transistor, the first transistor, and the second transistor are connected so that a video signal which is inputted by turning ON the third transistor is given to gate electrodes of the first transistor and the second transistor,
wherein the fourth transistor, the first transistor, and the second transistor are connected so that the power supply potential is given to gate electrodes of the first transistor and the second transistor by turning ON the fourth transistor,
wherein the power supply potential is given to a source of one of the first transistor and the second transistor,
wherein the first transistor and the second transistor have the same polarity, and
wherein the light emitting element, the first transistor and the second transistor are all connected in series.
32. The light emitting device according to claim 31, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.
33. A display device having the light emitting device according to claim 31.
34. A digital still camera having the light emitting device according to claim 31.
35. A portable information terminal having the light emitting device according to claim 31.
36. A laptop computer having the light emitting device according to claim 31.
37. A mobile computer according to claim 31, wherein the light emitting device is provided.
38. An image reproducing device having the light emitting device according to claim 31.
39. A goggle type display having the light emitting device according to claim 31.
40. A video camera having the light emitting device according to claim 31.
41. A device substrate comprising:
a pixel electrode and a first transistor and a second transistor each for controlling current to be supplied to the pixel electrode, which are formed in a pixel,
wherein a threshold voltage of the first transistor is lower than a threshold of the second transistor,
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein each polarity of the first transistor and the second transistor is n-type, and
wherein the pixel electrode, the first transistor and the second transistor are all connected in series.
42. The device substrate according to claim 41, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.
43. A device substrate comprising:
a pixel electrode and a first transistor and a second transistor each for controlling current to be supplied to the pixel electrode, which are formed in a pixel,
wherein the first transistor is normally-on,
wherein the second transistor is normally-off,
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein the first transistor and the second transistor have the same polarity, and
wherein the pixel electrode, the first transistor and the second transistor are all connected in series.
44. The device substrate according to claim 43, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.
45. A method for driving a light emitting device, comprising the step of:
controlling current to be supplied to a light emitting element by a first transistor and a second transistor,
wherein a threshold of the first transistor is lower than a threshold of the second transistor,
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein each polarity of the first transistor and the second transistor is n-type,
wherein the light emitting element, the first transistor and the second transistor are all connected in series, and
wherein the first transistor operates in a saturated region, and the second transistor operates in a linear region.
46. The method for driving the light emitting device according to claim 45, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.
47. A method for driving a light emitting device, comprising the step of:
controlling current to be supplied to a light emitting element by a first transistor and a second transistor,
wherein the first transistor is normally-on,
the second transistor is normally-off;
wherein a channel length of the first transistor is longer than a channel width thereof,
wherein a channel length of the second transistor is equal to or shorter than a channel width thereof,
wherein gate electrodes of the first transistor and the second transistor are connected to each other,
wherein the first transistor and the second transistor have the same polarity,
wherein the light emitting element, the first transistor and the second transistor are all connected in series, and
wherein the first transistor operates in a saturated region, and the second transistor operates in a linear region.
48. The method for driving the light emitting device according to claim 47, wherein a ratio of the channel length to the channel width of the first transistor is equal to or more than 5.