1. A method, comprising:
receiving a control current at a regulator circuit, the control current including a subtraction current of the regulator circuit and a feedback current;
deriving an amount of the control current in excess of the subtraction current to derive the feedback current;
adjusting a duty cycle at which a power switch is switched in response to the feedback current; and
increasing the subtraction current of the regulator circuit during an on-time of the power switch in response to the duty cycle at which the power switch is switched.
2. The method of claim 1 wherein increasing the subtraction current comprises directing a portion of the subtraction current from the power switch to a ground terminal when the power switch is switched on.
3. The method of claim 1 wherein increasing the subtraction current comprises increasing the subtraction current in response to an increase in the duty cycle of the power switch.
4. The method of claim 1 wherein the feedback current is proportional to an output level of a power supply output, the method further comprising regulating the power supply output in response to the duty cycle of the power switch.
5. The method of claim 4 wherein regulating the power supply output further includes regulating the power supply output to have an approximately constant output voltage and output current characteristic.
6. A method, comprising:
receiving a control current at a regulator circuit, the control current including a subtraction current of the regulator circuit and a feedback current;
deriving an amount of the control current in excess of the subtraction current to derive the feedback current;
adjusting a duty cycle at which a power switch is switched in response to the feedback current; and
decreasing the subtraction current of the regulator circuit during an on-time of the power switch in response to the duty cycle at which the power switch is switched.
7. The method of claim 1 wherein decreasing the subtraction current comprises directing a portion of the subtraction current from the power switch to a ground terminal when the power switch is switched on.
8. The method of claim 1 wherein decreasing the subtraction current comprises decreasing the subtraction current in response to a decrease in the duty cycle of the power switch.
9. The method of claim 1 wherein the feedback current is proportional to an output level of a power supply output, the method further comprising regulating the power supply output in response to the duty cycle of the power switch.
10. The method of claim 9 wherein regulating the power supply output further includes regulating the power supply output to have an approximately constant output voltage and output current characteristic.
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 networked printing system comprising:
at least one smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card;
a reader device coupled to a computer network, said smart card being locatable with said reader device to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons;
a printer device coupled to said network;
a merchant server coupled to said network and configured to receive said access information from said reader in response to selection of said one icon, and in response thereto forward an electronic document for printing on said printer for retrieval by said user; and
a transaction monitory server coupled to said network and configured to monitor the forwarding of said electronic document to said printer and to invoice at least one user of said network for costs associated with said printing.
2. A system according to claim 1 wherein said memory device further comprises identification information related to said user, said identification information being transmitted with said access information to said merchant server to enable cost associated with said printing to be invoiced to said user.
3. A system according to claim 1 wherein said reader device further transmits a network address of said printer to said merchant server thereby enabling said merchant server to use said network address to forward said electronic document to said printer.
4. A system according to claim 1 wherein said reader device and said printer are unitarily formed.
5. A system according to claim 4 wherein said one user is selected from the group consisting of said merchant server, said user, and a local server to which said printer and reader device are associated.
6. A method of producing a document sourced from a computer network, based on a smart card smart card having a memory device programmed with access information corresponding to and associated wit one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device coupled to said network to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons, said method comprising the steps of:
transmitting said access information from said reader to a merchant server coupled to said network in response to selection of said one icon; and
forwarding an electronic document from said merchant server to a printer coupled to said network for printing said electronic document on said printer and for retrieval by said user.
7. A method according to claim 6 wherein said memory device further comprises identification information related to said user, said identification information being transmitted with said access information to said merchant server to enable cost associated with said printing to be invoiced to said user.
8. A method according to claim 6 wherein said reader device further transmits a network address of said printer to said merchant server thereby enabling said merchant server to use said network address to forward said electronic document to said printer.
9. A method according to claim 6 wherein said reader device and said printer are unitarily formed.
10. A method according to claim 6 further comprising the steps of:
monitoring the forwarding of said electronic document to said printer;
and invoicing at least one user of said network for costs associated with said printing.
11. A method according to claim 10, wherein said monitoring and invoicing is performed by a transaction monitory server coupled to said network.
12. A method according to claim 11 wherein said one user is selected from the group consisting of said merchant server, said user, and a local sewer to which said printer and reader device are associated.
13. A method of procuring goods andor services, using a merchant sewer coupled to a computer network, based on a smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device coupled to said network to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons, said method comprising the steps of:
transmitting said access information from said reader device to said merchant server in response to selection of said one icon;
utilising said merchant sewer to provide said goods andor services for retrieval by said user according to said access information;
monitoring said transmission of said access information to said merchant server; and
invoicing at least one user of said network for costs associated with provision of said goods andor services.
14. A method according to claim 13 wherein said memory device further comprises identification information related to said user, said identification information being transmitted with said access information to said merchant server to enable cost associated with provision of said goods andor services to be invoiced to said user.
15. A method according to claim 13 wherein said reader device further transmits a network address of said reader device to said merchant server thereby enabling said merchant server to use said network address to forward said goods andor services to said user.
16. A method according to claim 13 wherein said reader device and said printer are unitarily formed.
17. A method according to claim 13, wherein said monitoring and invoicing is performed by a transaction monitory server coupled to said network.
18. A method according to claim 13 wherein said one user is selected from the group consisting of said merchant server, said user, and a local server to which said reader device are associated.
19. A method according to claim 13, where said goods andor services are selected from the group of consisting of a pizza service, a massage service and a printing service.
20. A network system for providing goods andor services, said network system comprising:
at least one smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card;
a reader device coupled to a computer network, said smart card being locatable with said reader device to permit a reading of said memory device to associate said access information with one of said icons selected by said user pointing a touch panel of said reader device overlaying said icons;
a merchant server coupled to said network and configured to receive said access information from said reader device in response to selection of said one icon, and in response thereto enable provision of said goods andor services for retrieval by said user; and
a transaction monitoring server coupled to said network and configured to monitor the forwarding of said access information to said merchant server and to invoice at least one user of said network for costs associated with said goods andor services.
21. A system according to claim 20, wherein said memory device further comprises identification information related to said user, said identification information being transmitted with said access information to said merchant server to enable cost associated with said printing to be invoiced to said user.
22. A system according to claim 20 wherein said reader device further transmits a network address of said reader device to said merchant server thereby enabling said merchant server to use said network address to forward said goods andar services to said user.
23. A system according to claim 20 wherein said reader device and said printer are unitarily formed.
24. A system according to claim 20 wherein said one user is selected from the group consisting of said merchant server, said user, and a local server to which said reader device is associated.
25. A merchant server for sourcing goods andor services based on a smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device, said reader device being coupled to a computer network to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlying said icons, said merchant server comprising:
a connecting means for connecting to said network;
a receiving means for receiving said access information transmitted from said reader device in response to selection of said one icon; and
a forwarding means for forwarding said goods andor services for retrieval by said user.
26. A merchant server according to claim 25, wherein said merchant server is further configured to forward further information to a transaction monitory sewer coupled to said network, said transaction monitory server being configured to monitor the forwarding of said access information to said merchant server and to invoice at least one user of said network for costs associated with said goods andor services.
27. A transaction monitoring server for monitoring transactions on a computer network based on a smart card, said smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device coupled to said network to permit a reading of said memory device to associated said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons, said transaction monitoring server comprising:
a network connecting means for connecting to said network;
a monitoring means for monitoring the forwarding of said access information transmitted from said reader device in response to selection of said one icons; and
an invoicing means for invoicing at least one user of said network for costs associated with said forwarding of said access information.
28. A program for producing a document, sourced from a computer network, based on a smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device coupled to said network to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons, said program comprising:
code for transmitting said access information from said reader to said merchant server in response to selection of said one icon; and
code for forwarding an electronic document from said merchant server to a printer coupled to said network for printing said electronic document on said printer and for retrieval by said user.
29. A program according to claim 28, wherein said program is stored in a memory medium and is executed by a processor configured within an apparatus.
30. A program for procuring goods andor services based on a smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device coupled to a computer network to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons, said program comprising:
code for transmitting said access information from said reader to a merchant server coupled to said network in response to selection of said one icon;
code for utilising said merchant server to provide said goods andor services for retrieval by said user according to said access information;
code for monitoring said transmission of said access information to said merchant server; and
code for invoicing at least one user of said network for costs associated with provision of said goods andor services.
31. A program according to claim 30, wherein said program is stored in a memory medium and is executed by a processor configured within an apparatus.
32. A computer readable medium, having a program recorded thereon, where the program is configured to make a computer execute a procedure to produce a document, sourced from a computer network, based on a smart card having a memeory device programmed wit access information corresponding to and associated with one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device coupled to said network to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons, said program comprising:
code for transmitting said access information from said reader device to a merchant server coupled to said network in response to selection of said one icon; and
code for forwarding an electronic document from said merchant server to a printer coupled to said network for printing said electronic document on said printer and for retrieval by said user.
33. A computer readable medium, having a program recorded thereon, where the program is configured to make a computer execute a procedure to procure goods andor services based on a smart card having a memory device programmed with access information corresponding to and associated with one or more icons formed on a surface of said smart card, said smart card being locatable with a reader device coupled to said network to permit a reading of said memory device to associate said access information with one of said icons selected by a user pointing a touch panel of said reader device overlaying said icons, said program comprising:
code for transmitting said access information from said reader to a merchant server coupled to said network in response to said one icon;
code for utilising said merchant server to provide said goods andor services for retrieval by said user according to said access information;
code for monitoring said transmission of said access information to said merchant server; and
code for invoicing at least one user of said network for costs associated with provision of said goods andor services.