1. An electrical device, comprising:
a bus interface coupled to a bus connector, the bus connector providing a power line, a ground line and a plurality of data lines to said bus interface;
an available power detector operatively connected to said bus interface, said available power detector operates to detect a level of available power from the power line when a power source is operatively connected to said bus interface via the bus connector;
power-consuming circuitry; and
a power manager operatively connected to said available power detector and said power-consuming circuitry, said power manager operates to manage power utilization by at least a portion of said power-consuming circuitry based on the level of available power.
2. An electrical device as recited in claim 1, wherein said electrical device further comprises:
a battery.
3. An electrical device as recited in claim 2, wherein said electrical device further comprises:
a battery monitor operatively connected to said battery, said battery monitor operates to monitor a charge level of said battery.
4. An electrical device as recited in claim 3, wherein said power manager operates to manage power utilization by at least a portion of said power-consuming circuitry based on the level of available power and the charge level.
5. An electrical device as recited in claim 3, wherein the at least a portion of said power-consuming circuitry includes at least a disk drive.
6. An electrical device as recited in claim 5, wherein said power manager control when or how said electronic device boots-up using the disk drive.
7. An electrical device as recited in claim 1, wherein said power-consuming circuitry includes at least a disk drive.
8. An electrical device as recited in claim 7, wherein said power manager control when or how said electronic device boots-up using the disk drive.
9. An electrical device as recited in claim 8, wherein said electrical device further comprises:
a battery.
10. An electrical device as recited in claim 9, wherein said electrical device further comprises:
a battery monitor operatively connected to said battery, said battery monitor operates to monitor a charge level of said battery.
11. An electrical device as recited in claim 10, wherein said power manager operates to manage power utilization by at least the disk drive of said power-consuming circuitry based on the level of available power and the charge level.
12. An electrical device as recited in claim 1, wherein said electrical device is a portable media player.
13. An electrical device as recited in claim 12, wherein said power-consuming circuitry includes at least a disk drive, the disk drive stores a plurality of media items that can be played by the portable media player.
14. An electrical device as recited in claim 12, wherein the power source is a power adapter or a battery pack.
15. A method for managing power utilization by an electrical device having a bus connector, said method comprising:
detecting connection of a peripheral bus to a bus connector of the electrical device, the peripheral bus having at least a power line and a plurality of bus data lines;
reading voltage levels on the bus data lines when said detecting detects connection of the peripheral bus;
determining whether a host device providing the peripheral bus is a power adapter based on the voltage levels; and
determining an available power level for the power adapter based on the voltage levels when said determining determines that the host device is a power adapter; and
managing power utilization of the electrical device based on the available power level for the power adapter.
16. A method as recited in claim 15, wherein the bus connector is a USB connector.
17. A method as recited in claim 15, wherein the bus connector is a FIREWIRE connector.
18. A method as recited in claim 15, wherein the electrical device includes a processor and at least a disk drive that stores computer program code, the processor can operate in accordance with the stored computer program code, and
wherein said managing operates to manage when or how the processor boots-up using the disk drive.
19. A method as recited in claim 18, wherein said electrical device is a portable media player.
20. A method as recited in claim 19,
wherein the bus connector is a USB connector, and
wherein the voltage levels that determine are used to determine available power levels for power adapter are all within a \u201cHigh\u201d voltage range of the peripheral bus when said detecting detects connection of the peripheral bus.
21. A method for managing power utilization by an electrical device having a bus connector, said method comprising:
detecting connection of a peripheral bus to a bus connector of the electrical device, the peripheral bus having at least a power line and a plurality of bus data lines;
reading voltage levels on the bus data lines when said detecting detects connection of the peripheral bus;
determining whether a host device providing the peripheral bus is a battery pack based on the voltage levels; and
determining an available power capacity of the battery pack based on the voltage levels when said determining determines that the host device is a battery pack; and
managing power utilization of the electrical device based on the available power capacity of the battery pack.
22. A method for determining power availability from a power adapter coupled to an electronic device via a peripheral bus, the peripheral bus having at least a power line and a plurality of bus data lines, said method comprising:
reading voltage levels induced on the bus data lines by the power adapter; and
determining an available power level for the power adapter based on the voltage levels.
23. A method as recited in claim 22, wherein said method further comprises:
thereafter managing power utilization of the electrical device based on the available power level for the power adapter.
24. A method as recited in claim 23, wherein the electrical device includes a processor and at least a disk drive that stores computer program code, the processor can operate in accordance with the stored computer program code, and
wherein said managing operates to manage when or how the processor boots-up using the disk drive.
25. A method as recited in claim 24, wherein the electrical device is a portable media player.
26. A method as recited in claim 22, wherein the electrical device is a portable media player.
27. A method for determining power availability from a battery pack coupled to an electronic device via a peripheral bus, the peripheral bus having at least a power line and a plurality of bus data lines, said method comprising:
reading voltage levels induced on the bus data lines by the battery pack; and
determining an available power level for the battery pack based on the voltage levels.
28. A method as recited in claim 27, wherein said method further comprises:
thereafter managing power utilization of the electrical device based on the available power level for the battery pack.
29. A method as recited in claim 28, wherein the electrical device includes a processor and at least a disk drive that stores computer program code, the processor can operate in accordance with the stored computer program code, and
wherein said managing operates to manage when or how the processor boots-up using the disk drive.
30. A method as recited in claim 29, wherein the electrical device is a portable media player.
31. A method for identifying a peripheral device coupled to a peripheral connector of an electronic device, said method comprising:
detecting connection of a peripheral bus to the bus connector of the electrical device, the peripheral bus being associated with a host device that is also connected to the peripheral bus, the peripheral bus having at least a power line and a plurality of bus data lines;
reading voltage levels on the bus data lines after said detecting detects connection of the peripheral bus; and
identifying the host device as a power adapter or a battery pack based on the voltage levels.
32. A method as recited in claim 31, wherein the electrical device is a portable media player.
33. A method as recited in claim 32, wherein said method further comprises:
determining an available power level for the power adapter or battery pack based on the voltage levels.
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 closing device adaptable to a glass or thermoplastic container comprising a neck closable by a stopper forced into the neck or screwed or clipped or crimped to the side wall of the neck while compressing a seal onto the upper end of the neck, the device comprising: a sleeve comprising an internal channel having an axis of symmetry that opens at one end having a leaktight connection of the closing device with respect to the neck of a container and at the other end having a sliding-contact surface which is a sector of a cylinder or a portion of a sphere, having an axis of symmetry of revolution that intersects the axis of symmetry of the internal channel of the sleeve at right angles, providing the bottle with a new orifice that can be closed by a shut-off plate connected to a caliper which pivots, via the ends of the caliper’s two parallel arms, about two journals integral with the sleeve, on which the arms pivot by means of a bore, wherein the journals and the bores form cams that enable the pressure of the shut-off plate on the sliding-contact surface to be varied and the pressure of the sealing portion to be varied when the new orifice is closed using a control portion, and comprising a sealing portion having a seal with a flexible lip integral with the new orifice, shaped essentially as a frustum of a cone of revolution, while the shut-off plate comprises, in the area that covers the new orifice, a small spherical can with a diameter roughly the same as that of said orifice and with a radius of curvature of the spherical cap that is much greater.
2. The closing device as claimed in claim 1, wherein the control portion comprises a lever integral with the parallel arms of the caliper.
3. The closing device as claimed in claim 1, wherein the closing device is produced from thermoplastic injection-molded parts cleaved or welded together.