US20010003205A1 - Bus-powered computer peripheral with supplemental battery power to overcome bus-power limit - Google Patents

Bus-powered computer peripheral with supplemental battery power to overcome bus-power limit Download PDF

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US20010003205A1
US20010003205A1 US09/115,843 US11584398A US2001003205A1 US 20010003205 A1 US20010003205 A1 US 20010003205A1 US 11584398 A US11584398 A US 11584398A US 2001003205 A1 US2001003205 A1 US 2001003205A1
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power
peripheral
coupled
computer
primary
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US09/115,843
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US6357011B2 (en
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Timothy G. Gilbert
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Gateway Inc
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Gateway Inc
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Assigned to GATEWAY, INC. reassignment GATEWAY, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: GATEWAY 2000, INC.
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/266Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips

Abstract

A computer system typically includes a central computer and several peripherals, such as a mouse and a printer, which communicate with the computer via a communications channel known as a serial bus. The serial bus may also supply a limited amount of power to some peripherals. Unfortunately, the power limit compels high-power peripherals to include independent power supplies, an arrangement which increase their complexity and cost. Accordingly, one embodiment of the present invention provides a bus-powered peripheral that includes a controller, a rechargeable battery, and a voltage regulator or recharge circuit. The recharge circuit monitors data on a serial bus, recharges the battery during inactive periods, and allows the battery to supplement bus power during active periods, thereby overcoming the power limit of the serial bus.

Description

    FIELD OF THE INVENTION
  • The present invention concerns computer systems and computer peripherals, particularly a system that recharges a battery-powered peripheral through a serial bus. [0001]
  • BACKGROUND OF THE INVENTION
  • Computer systems, particularly personal computers, typically include a central processing unit and a number of peripherals, or auxiliary devices, such as monitors, keyboards, mice, disc drives, printers, scanners, and even cameras, which communicate with the central processing unit. The central processing unit and the peripheral devices are usually connected via a two-way communications channel, known as a serial bus, which carries a stream of electrical pulses representing a sequence of ones and zeros. The serial bus may also carry electrical power for operating one or more peripherals. [0002]
  • Serial bus parameters, or specifications, are usually standardized not only to reduce the number of communications protocols, or procedures, a computer must understand, but also to simplify matching of computers and peripherals. Examples of serial bus specifications include Apple desktop bus (ADB), Access.bus (A.b), Institute of Electrical and Electronic Engineers (IEEE) P1394, Concentration Highway Interface (CHI), and GeoPort. [0003]
  • Within the past few years, a new serial bus specification, called the Universal Serial Bus (USB) Specification, has been developed to work with peripherals that require higher data rates, more flexibility, or less complexity than previously available in standard serial busses. A Universal Serial Bus, a serial bus that operates according to the USB Specification, has a maximum data rate of 12 million bits per second (12 Mbps), and carries as much as 2.5 watts of electric power to operate USB peripherals (that is, USB-compliant peripherals). [0004]
  • One problem with the USB and other serial bus specifications are the power limits they impose on bus-powered peripherals, peripherals that operate almost entirely on power carried by a serial bus. Because of the power limits, high-power peripherals, such as printers or speakers, that require more than the power limit for a particular serial bus must use separate, external power supplies. Unfortunately, external power supplies add expense and complexity to peripherals. [0005]
  • Accordingly, there is a need for a better way of powering high-power computer peripherals. [0006]
  • SUMMARY OF THE INVENTION
  • To address this and other needs, the present invention provides a peripheral with a rechargeable battery that stores energy during inactive periods for use during active periods. In one exemplary embodiment, the peripheral includes a voltage regulator for coupling to a pair of bus power lines; a controller coupled between the voltage regulator and one or more bus data lines; and a rechargeable battery coupled to the voltage regulator. In operation, the controller switches the battery between a charge mode and a supply mode according to signals received through the bus data lines. The charged battery supplements the power available through the bus power lines, thereby providing more power for operating the peripheral than otherwise available over the bus power lines alone. [0007]
  • Another embodiment packages the supplemental power capabilities as a power-extension or power-enhancement peripheral for connection between a computer and another peripheral. And, yet another embodiment, which lacks a controller, relies on rechargeable battery coupled in parallel with a primary-function module of the peripheral. The rechargeable battery responds automatically to power demands of the primary-function module to supply supplemental power during high-power-demand periods and to store excess power during low-power-demand periods. [0008]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a block diagram of a first computer system including a computer peripheral with rechargeable battery; [0009]
  • FIG. 2 is a block diagram of a second computer system including a power-extension peripheral connected between a computer and a USB bus-powered peripheral; [0010]
  • FIG. 3 is a block diagram of another embodiment of a computer peripheral having a rechargeable battery; and [0011]
  • FIG. 4 is a block diagram of another embodiment of a computer peripheral having a rechargeable battery. [0012]
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The following detailed description, which references and incorporates FIGS. [0013] 1-4, describes and illustrates specific preferred embodiments, or versions, of the invention. These embodiments, offered not to limit but only to exemplify and teach the invention, are shown and described in sufficient detail to enable those skilled in the art to practice the invention. Thus, where appropriate to avoid obscuring the invention, the description may omit certain information known to those of skill in the art.
  • FIG. 1 shows a personal computer system [0014] 10, which includes a personal computer 20, a Universal Serial Bus (USB) 30, and a USB peripheral 40. Computer 20, preferably a Gateway 2000 personal computer from Gateway 2000, Inc. of North Sioux City, S. Dak., includes a processor 22; a memory 24, which includes Universal Serial Bus (USB) communications software 241; a power supply 26, which converts 110 VAC to 5 volts DC; and a USB port 28, which follows the USB Specification 1.0 (Final Revision of Nov. 13, 1995) or an earlier or subsequent version. The USB. Specification is incorporated herein by reference.
  • USB port [0015] 28 connects to USB serial bus 30. USB serial bus 30 includes a USB cable 32 which terminates at one end (computer end) with USB connector 34 and at its other end (peripheral end) with USB connector 36. In accord with the USB Specification, cable 32, which has 90 ohm impedance, includes four insulated wires 321-324. Wires 321 and 322 provide respective nominal voltages of 5 volts and return ground, and carry a maximum of 2.5 watts of power. Wires 323 and 324 are differential data lines that carry differential data signals as well as an NRZI-encoded clock signal. Connector 34, at the computer end of cable 32, mates with USB port 26, and connector 36, at the peripheral end, mates with USB port 42 of USB peripheral 40.
  • Port [0016] 42 includes not only power terminals 421 and 422 which connect respectively to wires 321 and 322, but also data terminals 423 and 424 which connect respectively to wires 323 and 324. USB peripheral 40 additionally includes an interface-controller module 44, a voltage regulator (or recharge circuit) 46, a rechargeable battery 48, and a primary-function module 49. Interface-controller module 44 is connected to data terminals 423 and 424 of USB port 42. Power terminals 421 and 422 (of port 42) connect to voltage regulator 46. Voltage regulator 46 connects to battery (or energy-storage device) 48, which includes one or more energy-storage cells (not shown), preferably long-life rechargeable lithium, nickel-cadmium, zinc-bromine, or alkaline-manganese cells with minimum charging hysteresis. In addition, voltage regulator 46 includes output terminals 461 and 462 which are connected to primary-function module 49.
  • Primary-function module [0017] 49 includes the primary circuits and components necessary for the USB peripheral to perform its intended function. For example, USB peripheral 40 may be a printer, and module 49 would thus include the buffers, print heads, motors, etc. for a complete printer. Alternatively, USB peripheral 40 may also be a pair of speakers, with each speaker including a digital-to-analog converter, an amplifier, volume controls, and an audio transducer. Ultimately, the invention encompasses any type of computer peripheral, including high-power peripherals that require more power than available through bus 30.
  • In operation, interface-controller module [0018] 44 monitors and decodes data received at data terminals 423 and 424. If it receives data indicating or invoking an inactive period, for example, data instructing that the peripheral be turned off, it sends a control signal to voltage regulator 46. The control signal invokes a charge mode in voltage regulator 46. In the charge mode, voltage regulator 46 diverts power away from primary-function module 49 to battery 48, thereby charging battery 48.
  • On the other hand, if interface-controller module [0019] 44 receives data indicating or invoking an active period, such as data instructing that the peripheral be turned on, it sends a different control signal to voltage regulator 44. The different control signal invokes a supply mode during which module 44 couples battery 48 to primary function module 49, allowing battery 48 to provide supplemental power to primary-function module 48. Thus, during the supply mode, primary-function module 48 receives power not only from computer 20 (via bus 30), but also from battery 48, thereby overcoming the 2.5 watt power limit of bus 30.
  • In another embodiment, voltage regulator [0020] 46 monitors power drawn by primary-function module 49 against that available through serial bus 30. If excess power is available, that is, if more power is available than power being drawn, voltage regulator 46 invokes a variable-trickle-charge mode which charges battery 49 at a rate proportionate to, or at least dependent on, the amount of excess power. Consequently, battery 49 keeps a charge sufficient to consistently satisfy the peak power demands of primary-function module 48.
  • FIGS. [0021] 2-4 show three other embodiments of the invention. In particular, FIG. 2 shows a system 100 in which USB peripheral 50 functions solely as an in-line power-extension (or power-enhancement) peripheral for a separate high-power peripheral 70. The major difference between peripherals 40 and 50 is that peripheral 50 lacks primary-function module 49 and outputs power and data through a USB connector 64. Connector 64 is connected via a USB cable 66 to another USB connector 68. Connector 68 engages USB port 72 of peripheral 70. Port 72, substantially identical in structure and function to port 42, has four output terminals 721-724 connected to a primary-function module 79. Module 79 is substantially identical in structure and function to module 49.
  • In operation, the peripheral [0022] 50 operates much like peripheral 40. More precisely, port 42 and controller 44 of power-extension peripheral 50 decode and monitor data on bus 30. If controller 44 detects data indicating or invoking an inactive period for peripheral 70, it directs regulator 46 to divert power away from connector 64 and thus away from peripheral 70 to charge battery 48. On the other hand, if controller 44 detects data indicating or invoking an active period for peripheral 70, it allows battery 48 to provide supplemental power through connector 64, cable 66, and connector 68 to peripheral 70, thereby overcoming the 2.5 watt power limit of bus 30. Furthermore, two or more substantially similar power-extension peripherals can be connected in parallel to provide even more supplemental power to a given high-power peripheral.
  • FIG. 3 shows another embodiment of high-power peripheral [0023] 40, designated 80. Peripheral 80 includes many of the same or similar components as peripheral 40, namely USB port 42, voltage regulator 46, battery 48, and primary-function module 49. Notably, peripheral 80 lacks controller 44 for monitoring and detecting bus data indicative of active or inactive operating periods. Instead, peripheral 80 has battery 48 connected in parallel with output terminals 461-462 of voltage regulator 46 to “sense” the current drawn by primary-function module 49. During low power-demand periods, excess bus power (that is, bus current not drawn by module 49) charges battery 48 as necessary, and during high power-demand periods, battery 48 supplies supplemental power to primary-function module 49. Thus, like peripherals 40 and 70, peripheral 80 overcomes the 2.5 watt power limit of bus 30.
  • FIG. 4 shows another embodiment of high-power peripheral [0024] 40, designated 90. Peripheral 90 includes many of the same or similar components as peripheral 40, specifically USB port 42, voltage regulator 46, battery 48, and primary-function module 49. However, primary-function module 49 has been divided, preferably according to power requirements, into two portions: a low-power portion 49 a which receives power and data only from USB port 42, and a high-power portion 49 b which receives power from both USB port 42 and battery 48.
  • Low-power portion [0025] 49 a preferably includes control logic and circuits for operating high-power portion 49 b, and, high-power portion 49 b includes one or more transducers for converting electrical energy into another form of energy essential to the function of the peripheral. For example, high-power portion 49 b could include a motor which converts electrical energy to kinetic energy, or a light source which converts electrical energy to light, or a speaker which converts electrical energy to an acoustic energy. However, the scope of the invention encompasses any convenient division of a peripheral into first and second portions with the second portion connected to receive supplemental battery power.
  • Peripheral [0026] 90 has battery 48 connected in parallel with output terminals 461-462 of voltage regulator 46 to sense the current load of only the high-power portion 49 b, which is activated or deactivated via a control line from low-power portion 49 a. Thus, when low-power portion 49 a activates high-power portion 49 b, battery 48 supplies supplemental power to primary-function module 49, and when low-power portion 49 b deactivates high-power portion 49 b, excess bus power charges battery 48. Therefore, like peripherals 40, 50, and 80, peripheral 90 overcomes the power limit of bus 30.
  • Conclusion [0027]
  • The present invention provides several embodiments of bus-powered peripherals, including a power-extension peripheral, which overcome the 2.5 watt power limitation imposed by the USB Specification. Ultimately, the invention, applicable to any communications bus, eliminates the need to provide a separate external power supply in many high-power computer peripherals. [0028]
  • The embodiments described above are intended only to illustrate and teach one or more ways of practicing or implementing the present invention, not to restrict its breadth or scope. The actual scope of the invention, which encompasses all ways of practicing or implementing the invention, is defined only by the following claims and their equivalents. [0029]

Claims (20)

1. A computer peripheral for communicating with a computer, the computer peripheral comprising:
a power terminal for coupling to an external power source;
a data terminal for coupling to the computer;
a voltage regulator coupled to the power terminal;
a rechargeable battery coupled to the voltage regulator;
a primary-function module coupled to the voltage regulator; and
a controller coupled to the voltage regulator and responsive to signals at the data terminal to switch the voltage regulator between a charge mode that charges the rechargeable battery and a supply mode that supplies energy from the rechargeable battery to the primary-function module.
2. The computer peripheral of
claim 1
, wherein the primary-function module includes components of a printer, scanner, fax machine, or speaker.
3. The computer peripheral of
claim 1
, wherein the peripheral includes a USB port coupled to the power terminal and the data terminal.
4. The computer peripheral of
claim 1
, wherein the external power source is part of the computer.
5. A USB bus-powered peripheral comprising:
a USB port having two USB power terminals for coupling to a pair of USB power lines and having two USB data terminals for coupling to a pair of USB data lines;
a voltage regulator coupled to the two USB power terminals;
a rechargeable battery coupled to the voltage regulator;
a primary-function module coupled to the voltage regulator, the primary-function module including components of a printer, scanner, fax machine, or speaker; and
a controller coupled to the voltage regulator and responsive to signals at the USB data terminals to switch the voltage regulator between a charge mode that charges the rechargeable battery and a supply mode that supplies energy from the rechargeable battery to the primary-function module.
6. A system comprising:
a computer;
a bus for communicating data and power according to a bus specification; and
a peripheral coupled to the computer via the bus to receive data and power, the peripheral including:
a primary-function module; and
a rechargeable battery circuit coupled to the bus to store energy and responsive to power demands of the primary-function module to transfer stored energy to the module.
7. The system of
claim 6
, wherein the battery circuit includes:
a voltage regulator coupled to the bus and the primary-function module;
a rechargeable battery coupled to the voltage regulator; and
a controller coupled to the voltage regulator and responsive to signals on the bus to switch the voltage regulator between a charge mode that charges the rechargeable battery and a supply mode that supplies energy from the rechargeable battery to the primary-function module.
8. A computer peripheral comprising a rechargeable battery that stores energy during inactive periods for use during active periods.
9. The computer peripheral of
claim 8
, further comprising:
a communications port having two power terminals for coupling to a pair of power lines and having two data terminals for coupling to a pair of data lines, the power lines having a predetermined power limit;
a voltage regulator coupled to the power terminals and the rechargeable battery;
a primary-function module coupled to the voltage regulator; and
a controller coupled to at least one of the two data terminals and to the voltage regulator, the controller responsive to signals at the data terminals, indicating an inactive period, to switch the voltage regulator to a charge mode during which it charges the rechargeable battery and responsive to signals at the data terminals, indicating an active period, to switch the voltage regulator to a battery supply mode during which it transfers energy from the rechargeable battery and from the power lines to the primary-function module, thereby providing the primary-function module power in excess of the predetermined power limit.
10. The computer peripheral of
claim 8
, wherein the primary-function module includes components of a printer, scanner, fax machine, or speaker.
11. A power-extension peripheral for connection between a computer and a computer peripheral, the power-extension peripheral comprising:
a power terminal for coupling to an external power source;
a data terminal for coupling to the computer;
a voltage regulator coupled to the power terminal and having an output terminal for coupling to the computer peripheral;
a rechargeable battery coupled to the voltage regulator; and
a controller coupled to the data terminal and to the voltage regulator and responsive to signals at the data terminal to switch the voltage regulator between a charge mode that connects the rechargeable battery to the power terminal for recharge and a supply mode that connects the rechargeable battery and the power terminal to the output terminal for supplying power from both the battery and the external power source to the computer peripheral.
12. A system comprising:
a computer for processing data;
a bus, coupled to the computer, for communicating data;
a power supply for supplying a limited amount of power;
a power-extension peripheral coupled to the computer via the bus and to the power supply and including a supplemental power source; and
a computer peripheral coupled to the bus via the power-extension peripheral to receive power from the power supply and the supplemental power source, thereby receiving more than the limited amount of power.
13. The system of
claim 12
, wherein the power supply is part of the computer.
14. The system of
claim 12
, wherein the supplemental power source comprises a rechargeable battery and the power-extension peripheral further comprises:
a power terminal coupled to the power supply;
a data terminal coupled to the computer to receive signals;
a voltage regulator coupled to the power terminal and the rechargeable battery, and having an output terminal coupled to the computer peripheral; and
a controller coupled to the voltage regulator and responsive to signals at the data terminal to switch the voltage regulator between a charge mode that connects the rechargeable battery to the power terminal for recharge and a supply mode that connects the rechargeable battery and the power terminal to the output terminal for supplying power from both the battery and the power supply to the computer peripheral.
15. A computer peripheral comprising:
a pair of power terminals for receiving a limited amount of power;
a data terminal for communicating with a computer;
a primary-function module coupled to the power terminals and the data terminal to perform a primary function;
a rechargeable battery coupled to the power terminals and responsive to power demands of the primary-function module to provide supplemental power to the primary function module during high-power-demand periods and to store excess power during low-power-demand periods.
16. A computer peripheral comprising:
a pair of power terminals for receiving a limited amount of power;
a data terminal for receiving data from a computer;
a primary-function module coupled to the power terminals and the data terminal to perform a primary peripheral function, the primary-function module including a first portion that receives power only through the power terminals and a second portion that receives power through the power terminals; and
a rechargeable battery coupled to the power terminals and to the second portion of the primary-function module so that the second portion receives power concurrently from both the rechargeable battery and the power terminals.
17. The computer peripheral of
claim 16
, wherein the first portion of the primary-function module is responsive to signals at the data terminal to selectively activate or deactivate the second portion of the primary-function module, and wherein the battery is responsive to deactivation of the second portion to store energy transferred via the power terminals.
18. The computer peripheral of
claim 16
, wherein the first portion of the primary-function module includes control logic and circuits responsive to signals at the data terminal to operate the second portion, and the second portion of primary-function module includes one or more transducers for converting electrical energy into another form of energy.
19. A method of operating a computer peripheral connected to a computer via a bus, the method comprising:
transferring power via the bus to the computer peripheral;
operating at least a part of the peripheral with power transferred via the bus; and
charging a battery with at least a portion of the power transferred via the bus.
20. The method of
claim 19
further including operating at least a part of the peripheral with power transferred via the bus and with power derived from the charged battery.
US09/115,843 1998-07-15 1998-07-15 Bus-powered computer peripheral with supplement battery power to overcome bus-power limit Expired - Lifetime US6357011B2 (en)

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Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020128050A1 (en) * 2001-03-07 2002-09-12 Hong Soon-Kyo Battery for an electronic device and an electronic device using the same
US20030110403A1 (en) * 2001-12-10 2003-06-12 Intel Corporation System for shared power supply in computer peripheral devices
EP1343092A2 (en) * 2002-02-26 2003-09-10 Alps Electric Co., Ltd. Device with interface recognizing ability
US6727952B1 (en) * 1999-02-02 2004-04-27 Sanyo Electric Co., Ltd. Electronic device having common connector
US20040103223A1 (en) * 2002-11-26 2004-05-27 Motorola, Inc. USB accessory adaptor
US6753921B1 (en) * 1998-12-14 2004-06-22 Olympus Optical Co., Ltd. Camera and camera system
US20050007885A1 (en) * 2002-04-15 2005-01-13 Gilmour Daniel A. Body-worn data storage device
EP1553480A1 (en) * 2002-08-21 2005-07-13 Fujitsu Limited Bus power device and power source control method
US6934863B2 (en) 2001-10-16 2005-08-23 Benq Corporation Electronic apparatus capable of using an external power source and a bus power source simultaneously
US20050240705A1 (en) * 2004-04-27 2005-10-27 Novotney Donald J Connector interface system for a multi-communication device
US20060015757A1 (en) * 2004-07-18 2006-01-19 Apple Computer, Inc. Method and system for discovering a power source on a peripheral bus
US20060061927A1 (en) * 2001-10-22 2006-03-23 Apple Computer, Inc. Methods and apparatus for charging a battery in a peripheral device
US20060125446A1 (en) * 2004-12-10 2006-06-15 Apple Computer, Inc. Method and system for operating a portable electronic device in a power-limited manner
US20060156415A1 (en) * 2005-01-07 2006-07-13 Rubinstein Jonathan J Accessory authentication for electronic devices
US20060208695A1 (en) * 2005-03-21 2006-09-21 Eveready Battery Company, Inc. Direct current power supply
US20070041742A1 (en) * 2005-08-16 2007-02-22 Samsung Electronics Co., Ltd. Image forming apparatus and fixing apparatus thereof
US20070061491A1 (en) * 2003-04-28 2007-03-15 Theodore Kerdemelidis Communication method and apparatus
US7239111B2 (en) * 2001-03-01 2007-07-03 Research In Motion Limited Universal serial bus adapter for a mobile device
US20070194626A1 (en) * 2006-02-23 2007-08-23 Eager Jon S Power supply for battery powered devices
US20070204174A1 (en) * 2006-02-27 2007-08-30 Apple Computer, Inc. Power management in a portable media delivery system
US20070241721A1 (en) * 2005-03-21 2007-10-18 Eveready Battery Company, Inc. Direct current power supply
US20070300155A1 (en) * 2004-04-27 2007-12-27 Laefer Jay S Method and system for controlling video selection and playback in a portable media player
WO2008033775A2 (en) * 2006-09-11 2008-03-20 Apple Inc. Method and system for controlling power provided to an accessory
US20080092122A1 (en) * 2006-10-13 2008-04-17 Infosys Technologies Ltd. Automated performance monitoring
US20080133956A1 (en) * 2006-12-01 2008-06-05 Apple Computer, Inc. Power consumption management for functional preservation in a battery-powered electronic device
WO2008092056A1 (en) * 2007-01-25 2008-07-31 Eveready Battery Company, Inc. Portable power supply
US20080231226A1 (en) * 2007-03-23 2008-09-25 Eveready Battery Company, Inc. Battery Powered Device
US7525216B2 (en) 2005-01-07 2009-04-28 Apple Inc. Portable power source to provide power to an electronic device via an interface
US7573159B1 (en) 2001-10-22 2009-08-11 Apple Inc. Power adapters for powering and/or charging peripheral devices
US20090221404A1 (en) * 2008-02-29 2009-09-03 Apple Inc. Interfacing portable media devices and sports equipment
US20090251007A1 (en) * 2008-04-07 2009-10-08 Adams William L Hot-Swappable Battery Retrofit Module
US20090267569A1 (en) * 2003-04-30 2009-10-29 Research In Motion Limited Charger System and Method
US20100109602A1 (en) * 2008-11-03 2010-05-06 Chi Mei Communication Systems, Inc. Charging device and method of operating the same
KR100968453B1 (en) 2005-12-12 2010-07-07 삼성전자주식회사 Computer
US20100190040A1 (en) * 2007-01-25 2010-07-29 Eveready Battery Company, Inc. Use Extender Device
US7779185B2 (en) 2004-04-27 2010-08-17 Apple Inc. Communication between a media player and an accessory using a protocol with multiple lingoes
US7797471B2 (en) 2004-04-27 2010-09-14 Apple Inc. Method and system for transferring album artwork between a media player and an accessory
US7826318B2 (en) 2004-04-27 2010-11-02 Apple Inc. Method and system for allowing a media player to transfer digital audio to an accessory
US7848527B2 (en) 2006-02-27 2010-12-07 Apple Inc. Dynamic power management in a portable media delivery system
US20100311327A1 (en) * 2008-04-04 2010-12-09 Canon Kabushiki Kaisha Communication device and control method therefor
US7877532B2 (en) 2004-04-27 2011-01-25 Apple Inc. Communication between an accessory and a media player with multiple lingoes and lingo version information
US7895378B2 (en) 2004-04-27 2011-02-22 Apple Inc. Method and system for allowing a media player to transfer digital audio to an accessory
US20110055614A1 (en) * 2009-08-25 2011-03-03 Elitegroup Computer Systems Co., Ltd. Power-supply expansion system and method thereof
US7949810B2 (en) 2004-04-27 2011-05-24 Apple Inc. Techniques for transferring data between a media player and an accessory having a tuner
US20110167281A1 (en) * 2010-01-06 2011-07-07 Apple Inc. Accessory power management
US20110167287A1 (en) * 2010-01-06 2011-07-07 Apple Inc. Providing power to an accessory during portable computing device hibernation
US20110185204A1 (en) * 2010-01-26 2011-07-28 Apple Inc. Control of accessory components by portable computing device
US8006019B2 (en) 2006-05-22 2011-08-23 Apple, Inc. Method and system for transferring stored data between a media player and an accessory
US20110208980A1 (en) * 2010-02-22 2011-08-25 Benjamin Brooks Methods and apparatus for intelligently providing power to a device
WO2011147785A1 (en) * 2010-05-27 2011-12-01 Sagemcom Broadband Sas Device for supplying auxiliary power to an item of equipment on a current‑limited power supply bus
US8095716B2 (en) 2006-06-27 2012-01-10 Apple Inc. Method and system for communicating capability information from an accessory to a media player
US20120011376A1 (en) * 2010-07-09 2012-01-12 Seagate Technology Llc Circuit for supplementing electrical current to a peripheral device
US8099536B2 (en) 2004-04-27 2012-01-17 Apple Inc. Communication between an accessory and a media player with general and accessory lingoes
US8117651B2 (en) 2004-04-27 2012-02-14 Apple Inc. Method and system for authenticating an accessory
US20120102352A1 (en) * 2001-11-20 2012-04-26 Anthony Kim Power sharing between portable computer system and peripheral devices
ES2381276A1 (en) * 2010-10-04 2012-05-24 Destell Gestion, S.L. Storage device and selectively transmit-receive data.
US8208853B2 (en) 2008-09-08 2012-06-26 Apple Inc. Accessory device authentication
US8238811B2 (en) 2008-09-08 2012-08-07 Apple Inc. Cross-transport authentication
US8688888B1 (en) * 2012-12-31 2014-04-01 Giga-Byte Technology Co., Ltd. Computer peripheral device and operating method thereof
US20140180466A1 (en) * 2011-07-13 2014-06-26 Mitsubishi Electric Corporation Numerical control apparatus
GB2511193A (en) * 2012-12-28 2014-08-27 Canon Kk Electronic device
US20140245036A1 (en) * 2011-11-18 2014-08-28 Sony Corporation Electronic apparatus, charging control method, charging system, and data transmission system
US8996892B1 (en) * 2010-10-20 2015-03-31 Marvell International Ltd. Power smart peripheral devices with external power supplies
US9071357B1 (en) * 2014-07-11 2015-06-30 Emcore Corporation Data communications system including an optical fiber data link disposed between serial bidirectional electrical data busses
EP2579422A3 (en) * 2003-02-21 2015-09-23 BlackBerry Limited Circuit and method fo operation for an electrical power supply
JP2015189025A (en) * 2014-03-27 2015-11-02 セイコーエプソン株式会社 Printing device
US9430414B2 (en) 2013-03-16 2016-08-30 Intel Corporation Bus independent platform for sensor hub peripherals to provide coalescing of multiple reports
US9542347B2 (en) 2013-03-16 2017-01-10 Intel Corporation Host interface crossbar for sensor hub
US9588563B2 (en) 2014-05-30 2017-03-07 Apple Inc. Protocol for managing a controllable power adapter accessory
US9690346B1 (en) * 2015-10-30 2017-06-27 Seagate Technology Llc Load sharing across multiple voltage supplies
EP3382845A1 (en) * 2017-03-31 2018-10-03 Delta Electronics, Inc. Intelligent uninterruptible power charging apparatus and method of operating the same
US10312704B2 (en) 2014-01-23 2019-06-04 Apple Inc. Power adapters for powering and/or charging peripheral devices

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526515B1 (en) * 1996-11-04 2003-02-25 Mobility Electronics Inc. Remote pluggable system having bays for attachment of computer peripherals
US6715071B2 (en) * 1998-06-26 2004-03-30 Canon Kabushiki Kaisha System having devices connected via communication lines
US6516418B1 (en) * 1998-07-23 2003-02-04 Samsung Electronics Co., Ltd. Portable computer having universal serial bus ports controlled power supply and a method of the same
US6480510B1 (en) * 1998-07-28 2002-11-12 Serconet Ltd. Local area network of serial intelligent cells
US7016595B1 (en) * 1999-05-28 2006-03-21 Nikon Corporation Television set capable of controlling external device and image storage controlled by television set
US6956826B1 (en) 1999-07-07 2005-10-18 Serconet Ltd. Local area network for distributing data communication, sensing and control signals
DE19944053C2 (en) * 1999-09-14 2001-08-02 Infineon Technologies Ag Apparatus and method for supplying power to computer peripheral devices via the bus system of the computer
JP3859406B2 (en) * 1999-10-20 2006-12-20 日本電気株式会社 Bus power supply and node
JP2001125688A (en) * 1999-10-29 2001-05-11 Fujitsu Ltd Extension device
US6665801B1 (en) * 2000-01-27 2003-12-16 Symbol Technologies, Inc. Method and apparatus for charging a self powered USB device at different charge rates according to the charge level of a rechargeable element on the device
US6549616B1 (en) 2000-03-20 2003-04-15 Serconet Ltd. Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets
US7256516B2 (en) * 2000-06-14 2007-08-14 Aerovironment Inc. Battery charging system and method
US6668296B1 (en) * 2000-06-30 2003-12-23 Hewlett-Packard Development Company, L.P. Powering a notebook across a USB interface
TW479142B (en) * 2000-07-14 2002-03-11 Inventec Corp Method for testing USB port and the device thereof
US6993289B2 (en) * 2000-08-02 2006-01-31 Simple Devices System including a wall switch device and a system including a power outlet device and methods for using the same
US7085939B2 (en) * 2000-12-14 2006-08-01 International Business Machines Corporation Method and apparatus for supplying power to a bus-controlled component of a computer
TW471201B (en) * 2001-02-20 2002-01-01 Primax Electronics Ltd Data exchange device applicable to handheld personal data processing device
JP2002323941A (en) * 2001-04-24 2002-11-08 Teac Corp Peripheral device
JP2005057312A (en) * 2001-08-06 2005-03-03 Matsushita Electric Ind Co Ltd Digital camera data transmission stand
JP3611316B2 (en) * 2001-10-29 2005-01-19 インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Electrical equipment, computer equipment, switching power supplies, and power switching method
US6695516B2 (en) * 2001-11-14 2004-02-24 Ecolab Inc. Floor finish application system using applicator pad and matched floor finish composition
US6952785B1 (en) * 2002-03-04 2005-10-04 Cisco Technology, Inc. Methods and apparatus for powering a data communications port
US6614206B1 (en) * 2002-05-23 2003-09-02 Palm, Inc. Universal USB charging accessory
US7689724B1 (en) * 2002-08-16 2010-03-30 Cypress Semiconductor Corporation Apparatus, system and method for sharing data from a device between multiple computers
US7023111B2 (en) * 2002-08-20 2006-04-04 Sony Corporation Electronic device with attachment and switching between batteries therefor
US7421594B2 (en) * 2002-08-21 2008-09-02 Fujitsu Limited Bus power device and power-source control method
US7024569B1 (en) * 2002-09-24 2006-04-04 Cypress Semiconductor Corp. Method and apparatus for supplying auxiliary power to a bus coupled peripheral
TW555078U (en) * 2002-10-21 2003-09-21 C One Technology Corp USB personal apparatus having built-in instrument with chargeable function
US20050033996A1 (en) * 2002-11-15 2005-02-10 Piau Fong Method and apparatus for a communication hub
US8018607B2 (en) * 2002-12-05 2011-09-13 Hewlett-Packard Development Company, L.P. Scanner power management system and method
GB2402271B (en) 2003-05-27 2006-04-19 Research In Motion Ltd Method and apparatus for handling a charging state in a mobile electronic device
US20050009404A1 (en) * 2003-07-07 2005-01-13 Andrew Lee USB adapter with a power connector
US20050162017A1 (en) * 2004-01-21 2005-07-28 Li-Chun Chin Power supply device for peripheral device
IL160417A (en) * 2004-02-16 2011-04-28 Mosaid Technologies Inc Outlet add-on module
US7679316B2 (en) * 2004-02-17 2010-03-16 Research In Motion Limited Method and apparatus for controlling a charging state in a mobile electronic device
WO2005078554A1 (en) * 2004-02-17 2005-08-25 Research In Motion Limited Method and apparatus for handling a charging state in a mobile electronic device
US7353407B2 (en) * 2004-05-20 2008-04-01 Cisco Technology, Inc. Methods and apparatus for provisioning phantom power to remote devices
US7240229B2 (en) * 2004-06-10 2007-07-03 Digi International Inc. System and method for routing data and power to external devices
US7202646B2 (en) * 2004-08-02 2007-04-10 Vlt, Inc. Control interface with droop compensation
US20090150692A1 (en) * 2004-11-22 2009-06-11 Koninklijke Philips Electronics, N.V. Portable ultrasound system with variable power consumption
US7472290B2 (en) * 2004-12-23 2008-12-30 Cisco Technology, Inc. Methods and apparatus to maintain and utilize mobile power profile information
US7478251B1 (en) 2004-12-23 2009-01-13 Cisco Technology, Inc. Methods and apparatus for provisioning uninterruptible power for power over Ethernet applications
US7509505B2 (en) 2005-01-04 2009-03-24 Cisco Technology, Inc. Method and system for managing power delivery for power over Ethernet systems
US7451329B2 (en) * 2005-09-08 2008-11-11 Cisco Technology, Inc. Techniques for measuring network resistive loss within a power-sourcing apparatus
US20070079153A1 (en) * 2005-10-05 2007-04-05 Dell Products L.P. Information handling system, current and voltage mode power adapter, and method of operation
US7262974B2 (en) * 2005-10-28 2007-08-28 Cisco Technology, Inc. Techniques for alleviating the need for DC blocking capacitors in high-speed differential signal pairs
DE102006036770A1 (en) * 2006-08-07 2008-02-14 Siemens Ag A method for starting at least one field device,
US8564252B2 (en) 2006-11-10 2013-10-22 Cypress Semiconductor Corporation Boost buffer aid for reference buffer
US7591673B2 (en) * 2007-01-18 2009-09-22 Hewlett-Packard Development Company, L.P. Combined power and control signal cable
US20080250255A1 (en) * 2007-04-06 2008-10-09 Broadcom Corporation System and method for applying power over ethernet to portable computing devices
US7818591B2 (en) * 2007-04-11 2010-10-19 Cisco Technology, Inc. Techniques for measuring network channel resistive loss between a power-sourcing apparatus and a powered device
US8035401B2 (en) 2007-04-18 2011-10-11 Cypress Semiconductor Corporation Self-calibrating driver for charging a capacitive load to a desired voltage
JP4363457B2 (en) * 2007-05-01 2009-11-11 ヤマハ株式会社 Power controller, a speaker apparatus and a power control method
JP5152785B2 (en) * 2008-01-28 2013-02-27 ソニーオプティアーク株式会社 Peripherals, method of operation peripherals, electronic equipment system
US8235803B2 (en) * 2008-04-02 2012-08-07 Wms Gaming Inc. Gaming machines with normalized power consumption
US20090295230A1 (en) * 2008-05-30 2009-12-03 Nokia Corporation Selective coupling of a powered component
US20090307390A1 (en) * 2008-06-04 2009-12-10 Broadcom Corporation Access of built-in peripheral components by internal and external bus pathways
WO2010053872A1 (en) * 2008-11-05 2010-05-14 Greensmith Energy Management Systems, Llc Distributed energy storage system, and applications thereof
TWM367535U (en) * 2009-05-19 2009-10-21 Genesys Logic Inc Dual power device and scanning apparatus employing the same
US20110309789A1 (en) * 2010-06-21 2011-12-22 Kyocera Wireless Corp Charger with data storage
CN102385563A (en) * 2010-08-31 2012-03-21 鸿富锦精密工业(深圳)有限公司 USB (universal serial bus) port reading and writing device and method of 1-wire bus
US8364870B2 (en) 2010-09-30 2013-01-29 Cypress Semiconductor Corporation USB port connected to multiple USB compliant devices
GB201018303D0 (en) 2010-10-29 2010-12-15 Dymo Nv Printer
US8731730B2 (en) 2011-04-27 2014-05-20 Ev Patent Holdings, Llc Electric vehicle clustered charge distribution and prioritization method, system and apparatus
EP2712153A4 (en) * 2011-07-21 2014-04-09 Huawei Device Co Ltd Wireless wideband device
JP5375917B2 (en) * 2011-09-29 2013-12-25 コベルコクレーン株式会社 Work machine of the battery charge and discharge control device
US9667240B2 (en) 2011-12-02 2017-05-30 Cypress Semiconductor Corporation Systems and methods for starting up analog circuits
US9037877B2 (en) 2012-01-20 2015-05-19 Dell Products L.P. System and method for operating a plurality of components according to first or second operating characteristics in response to a detected first or second power input characteristic associated with a first or second power input respectively

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686549A (en) * 1971-02-01 1972-08-22 Gen Motors Corp Power control system
US3771039A (en) 1972-03-01 1973-11-06 Gte Automatic Electric Lab Inc Battery charging circuit for subscriber carrier equipment
US3777247A (en) 1972-03-01 1973-12-04 Gte Automatic Electric Lab Inc Battery charging circuit for subscriber carrier equipment
US3968333A (en) 1973-09-18 1976-07-06 Superior Continental Corporation Battery charger control circuit for telephone transmission systems
CA1321842C (en) 1988-05-11 1993-08-31 Digital Equipment Corporation Double unequal bus timeout
KR930008260B1 (en) 1989-09-29 1993-08-27 아오이 죠이치 Intellegent power system for portable computer
US5287525A (en) 1989-11-29 1994-02-15 Linear Technology Corporation Software controlled power shutdown in an integrated circuit
US5110226A (en) * 1990-10-19 1992-05-05 Norand Corporation Battery operated data entry terminal device and printer attachment
US5452401A (en) 1992-03-31 1995-09-19 Seiko Epson Corporation Selective power-down for high performance CPU/system
US5339445A (en) 1992-11-16 1994-08-16 Harris Corporation Method of autonomously reducing power consumption in a computer sytem by compiling a history of power consumption
US5483656A (en) 1993-01-14 1996-01-09 Apple Computer, Inc. System for managing power consumption of devices coupled to a common bus
GB9405855D0 (en) 1994-03-24 1994-05-11 Int Computers Ltd Computer system
JP2716374B2 (en) * 1994-09-28 1998-02-18 インターナショナル・ビジネス・マシーンズ・コーポレイション An information processing apparatus, power supply apparatus and power supply method for an information processing equipment
JP2986059B2 (en) * 1995-03-08 1999-12-06 インターナショナル・ビジネス・マシーンズ・コーポレイション Battery charger
US5504413A (en) 1995-07-25 1996-04-02 Motorola, Inc. Battery charging system with power management of plural peripheral devices
US5675813A (en) * 1995-10-26 1997-10-07 Microsoft Corporation System and method for power control in a universal serial bus
US5661645A (en) * 1996-06-27 1997-08-26 Hochstein; Peter A. Power supply for light emitting diode array
US5799196A (en) * 1996-07-02 1998-08-25 Gateway 2000, Inc. Method and apparatus of providing power management using a self-powered universal serial bus (USB) device

Cited By (174)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6753921B1 (en) * 1998-12-14 2004-06-22 Olympus Optical Co., Ltd. Camera and camera system
US6727952B1 (en) * 1999-02-02 2004-04-27 Sanyo Electric Co., Ltd. Electronic device having common connector
US7986127B2 (en) 2001-03-01 2011-07-26 Research In Motion Limited Communication device with a USB port for charging
US8232766B2 (en) 2001-03-01 2012-07-31 Research In Motion Limited Multifunctional charger system and method
US8624550B2 (en) 2001-03-01 2014-01-07 Blackberry Limited Multifunctional charger system and method
US20110025262A1 (en) * 2001-03-01 2011-02-03 Research In Motion Limited Multifunctional Charger System and Method
US8169187B2 (en) 2001-03-01 2012-05-01 Research In Motion Limited Multifunctional charger system and method
US7239111B2 (en) * 2001-03-01 2007-07-03 Research In Motion Limited Universal serial bus adapter for a mobile device
US20020128050A1 (en) * 2001-03-07 2002-09-12 Hong Soon-Kyo Battery for an electronic device and an electronic device using the same
US6934863B2 (en) 2001-10-16 2005-08-23 Benq Corporation Electronic apparatus capable of using an external power source and a bus power source simultaneously
US7573159B1 (en) 2001-10-22 2009-08-11 Apple Inc. Power adapters for powering and/or charging peripheral devices
US7656623B2 (en) 2001-10-22 2010-02-02 Apple Inc. Methods and apparatus for charging a battery in a peripheral device
US20100085011A1 (en) * 2001-10-22 2010-04-08 Apple Inc. Methods and apparatus for charging a battery in a peripheral device
US20060061927A1 (en) * 2001-10-22 2006-03-23 Apple Computer, Inc. Methods and apparatus for charging a battery in a peripheral device
US8222773B2 (en) 2001-10-22 2012-07-17 Apple Inc. Power adapters for powering and/or charging peripheral devices
US8674558B2 (en) 2001-10-22 2014-03-18 Apple Inc. Power adapters for powering and/or charging peripheral devices
US7940026B2 (en) 2001-10-22 2011-05-10 Apple Inc. Methods and apparatus for charging a battery in a peripheral device
US7766698B1 (en) 2001-10-22 2010-08-03 Apple Inc. Power adapters for powering and/or charging peripheral devices
US20070222301A1 (en) * 2001-10-22 2007-09-27 Apple Inc. Methods and apparatus for charging a battery in a peripheral device
US8232672B2 (en) 2001-10-22 2012-07-31 Apple Inc. Power adapters for powering and/or charging peripheral devices
US8261109B2 (en) * 2001-11-20 2012-09-04 Hewlett-Packard Development Company, L.P. Power sharing between portable computer system and peripheral devices
US20120102352A1 (en) * 2001-11-20 2012-04-26 Anthony Kim Power sharing between portable computer system and peripheral devices
US20030110403A1 (en) * 2001-12-10 2003-06-12 Intel Corporation System for shared power supply in computer peripheral devices
EP1343092A3 (en) * 2002-02-26 2006-03-08 Alps Electric Co., Ltd. Device with interface recognizing ability
EP1343092A2 (en) * 2002-02-26 2003-09-10 Alps Electric Co., Ltd. Device with interface recognizing ability
US7234010B2 (en) 2002-04-15 2007-06-19 Gilmour Daniel A Body-worn data storage device
US20050007885A1 (en) * 2002-04-15 2005-01-13 Gilmour Daniel A. Body-worn data storage device
EP1553480A4 (en) * 2002-08-21 2010-07-07 Fujitsu Ltd Bus power device and power source control method
EP1553480A1 (en) * 2002-08-21 2005-07-13 Fujitsu Limited Bus power device and power source control method
US20040103223A1 (en) * 2002-11-26 2004-05-27 Motorola, Inc. USB accessory adaptor
WO2004049149A1 (en) * 2002-11-26 2004-06-10 Motorola Inc. Usb accessory adaptor
EP3145044A1 (en) * 2003-02-21 2017-03-22 Fundamental Innovation Systems International LLC Circuit and method of operation for an electrical power supply
EP2579422A3 (en) * 2003-02-21 2015-09-23 BlackBerry Limited Circuit and method fo operation for an electrical power supply
US20070061491A1 (en) * 2003-04-28 2007-03-15 Theodore Kerdemelidis Communication method and apparatus
US7979612B2 (en) * 2003-04-28 2011-07-12 Keyghost Limited Communication method and apparatus
US8193776B2 (en) * 2003-04-30 2012-06-05 Research In Motion Limited Charger system and method
US8330422B2 (en) 2003-04-30 2012-12-11 Research In Motion Limited Charger system and method
US20090267569A1 (en) * 2003-04-30 2009-10-29 Research In Motion Limited Charger System and Method
US7812565B2 (en) * 2003-04-30 2010-10-12 Research In Motion Limited Charger system and method
US20110018493A1 (en) * 2003-04-30 2011-01-27 Research In Motion Limited Charger System and Method
US20130063081A1 (en) * 2003-04-30 2013-03-14 Research In Motion Limited Charger System and Method
US20070300155A1 (en) * 2004-04-27 2007-12-27 Laefer Jay S Method and system for controlling video selection and playback in a portable media player
US7853746B2 (en) 2004-04-27 2010-12-14 Apple Inc. Interface system for enabling data communication between a multi-communication device and other devices
US20050240705A1 (en) * 2004-04-27 2005-10-27 Novotney Donald J Connector interface system for a multi-communication device
US8099536B2 (en) 2004-04-27 2012-01-17 Apple Inc. Communication between an accessory and a media player with general and accessory lingoes
US7877532B2 (en) 2004-04-27 2011-01-25 Apple Inc. Communication between an accessory and a media player with multiple lingoes and lingo version information
US7826318B2 (en) 2004-04-27 2010-11-02 Apple Inc. Method and system for allowing a media player to transfer digital audio to an accessory
US8402187B2 (en) 2004-04-27 2013-03-19 Apple Inc. Method and system for transferring button status information between a media player and an accessory
US8386680B2 (en) 2004-04-27 2013-02-26 Apple Inc. Communication between an accessory and a media player with multiple protocol versions and extended interface lingo
US20090006701A1 (en) * 2004-04-27 2009-01-01 Apple Inc. Techniques for transferring status information between an accessory and a multi-communication device
US8117651B2 (en) 2004-04-27 2012-02-14 Apple Inc. Method and system for authenticating an accessory
US7797471B2 (en) 2004-04-27 2010-09-14 Apple Inc. Method and system for transferring album artwork between a media player and an accessory
US7441062B2 (en) 2004-04-27 2008-10-21 Apple Inc. Connector interface system for enabling data communication with a multi-communication device
US7660929B2 (en) 2004-04-27 2010-02-09 Apple Inc. Connector interface system for a multi-communication device
US7673083B2 (en) 2004-04-27 2010-03-02 Apple Inc. Method and system for controlling video selection and playback in a portable media player
US7895378B2 (en) 2004-04-27 2011-02-22 Apple Inc. Method and system for allowing a media player to transfer digital audio to an accessory
US8135891B2 (en) 2004-04-27 2012-03-13 Apple Inc. Method and system for transferring button status information between a media player and an accessory
US8171195B2 (en) 2004-04-27 2012-05-01 Apple Inc. Media player communication with an accessory using a display remote lingo
US7779185B2 (en) 2004-04-27 2010-08-17 Apple Inc. Communication between a media player and an accessory using a protocol with multiple lingoes
US8285901B2 (en) 2004-04-27 2012-10-09 Apple Inc. Communication between an accessory and a media player using an extended interface lingo
US8171194B2 (en) 2004-04-27 2012-05-01 Apple Inc. Accessory communication with a media player using a display remote lingo
US7757026B2 (en) 2004-04-27 2010-07-13 Apple Inc. Techniques for transferring status information between an accessory and a multi-communication device
US20080034129A1 (en) * 2004-04-27 2008-02-07 Apple Inc. Method And System For Transferring Status Information Between A Media Player And An Accessory
US8239595B2 (en) 2004-04-27 2012-08-07 Apple Inc. Communication between a media player and an accessory with an extended interface mode
US7702833B2 (en) 2004-04-27 2010-04-20 Apple Inc. Techniques for transferring information between an accessory and a multi-communication device
US8082376B2 (en) 2004-04-27 2011-12-20 Apple Inc. Communication between an accessory and a media player with multiple protocol versions
US7949810B2 (en) 2004-04-27 2011-05-24 Apple Inc. Techniques for transferring data between a media player and an accessory having a tuner
JP4664362B2 (en) * 2004-07-18 2011-04-06 アップル インコーポレイテッド Electrical device, a method for identifying a host device, a method for determining power availability of the power supply, and a method for managing power utilization of the electrical device
US8332668B2 (en) 2004-07-18 2012-12-11 Apple Inc. Method and system for discovering a power source on a peripheral bus
US20090278407A1 (en) * 2004-07-18 2009-11-12 Apple Inc. Method and system for discovering a power source on a peripheral bus
JP2008507062A (en) * 2004-07-18 2008-03-06 アップル インコーポレイテッド Method and system for discovering the power on the peripheral bus
US20060015757A1 (en) * 2004-07-18 2006-01-19 Apple Computer, Inc. Method and system for discovering a power source on a peripheral bus
US7581119B2 (en) 2004-07-18 2009-08-25 Apple Inc. Method and system for discovering a power source on a peripheral bus
WO2006019850A3 (en) * 2004-07-18 2006-05-26 Apple Computer Method and system for discovering a power source on a peripheral bus
US7890783B2 (en) 2004-07-18 2011-02-15 Apple Inc. Method and system for discovering a power source on a peripheral bus
US20090174367A1 (en) * 2004-12-10 2009-07-09 Apple Inc. Method and system for operating a portable electronic device in a power-limited manner
US20060125446A1 (en) * 2004-12-10 2006-06-15 Apple Computer, Inc. Method and system for operating a portable electronic device in a power-limited manner
US8106630B2 (en) 2004-12-10 2012-01-31 Apple Inc. Method and system for operating a portable electronic device in a power-limited manner
US7541776B2 (en) 2004-12-10 2009-06-02 Apple Inc. Method and system for operating a portable electronic device in a power-limited manner
US7746032B2 (en) 2004-12-10 2010-06-29 Apple Inc. Method and system for operating a portable electronic device in a power-limited manner
US8633679B2 (en) 2004-12-10 2014-01-21 Apple Inc. Method and system for operating a portable electronic device in a power-limited manner
US20100205472A1 (en) * 2004-12-10 2010-08-12 Apple Inc. Method and system for operating a portable electronic device in a power-limited manner
US8161567B2 (en) 2005-01-07 2012-04-17 Apple Inc. Accessory authentication for electronic devices
US7816811B2 (en) 2005-01-07 2010-10-19 Apple Inc. Portable power source to provide power to an electronic device via an interface
US8763079B2 (en) 2005-01-07 2014-06-24 Apple Inc. Accessory authentication for electronic devices
US20100327664A1 (en) * 2005-01-07 2010-12-30 Apple Inc. Portable power source to provide power to an electronic device via an interface
US7823214B2 (en) 2005-01-07 2010-10-26 Apple Inc. Accessory authentication for electronic devices
US9223958B2 (en) 2005-01-07 2015-12-29 Apple Inc. Accessory authentication for electronic devices
US9754099B2 (en) 2005-01-07 2017-09-05 Apple Inc. Accessory authentication for electronic devices
US7525216B2 (en) 2005-01-07 2009-04-28 Apple Inc. Portable power source to provide power to an electronic device via an interface
US20090189460A1 (en) * 2005-01-07 2009-07-30 Apple Inc. Portable power source to provide power to an electronic device via an interface
US20060156415A1 (en) * 2005-01-07 2006-07-13 Rubinstein Jonathan J Accessory authentication for electronic devices
US10049206B2 (en) 2005-01-07 2018-08-14 Apple Inc. Accessory authentication for electronic devices
US8581449B2 (en) 2005-01-07 2013-11-12 Apple Inc. Portable power source to provide power to an electronic device via an interface
US20090159330A1 (en) * 2005-03-21 2009-06-25 Eveready Battery Company, Inc. Direct Current Power Supply
US20060208695A1 (en) * 2005-03-21 2006-09-21 Eveready Battery Company, Inc. Direct current power supply
US20070241721A1 (en) * 2005-03-21 2007-10-18 Eveready Battery Company, Inc. Direct current power supply
US7489105B2 (en) 2005-03-21 2009-02-10 Eveready Battery Company, Inc. Portable power supply
US7777449B2 (en) 2005-03-21 2010-08-17 Eveready Battery Company, Inc. Power supply that provides an output voltage through an electrical connector
US20070041742A1 (en) * 2005-08-16 2007-02-22 Samsung Electronics Co., Ltd. Image forming apparatus and fixing apparatus thereof
KR100968453B1 (en) 2005-12-12 2010-07-07 삼성전자주식회사 Computer
US8022662B2 (en) 2006-02-23 2011-09-20 Eveready Battery Company, Inc. Power supply for battery powered devices
US7531986B2 (en) 2006-02-23 2009-05-12 Eveready Battery Company, Inc. Power supply for battery powered devices
US20070194626A1 (en) * 2006-02-23 2007-08-23 Eager Jon S Power supply for battery powered devices
US8686682B2 (en) 2006-02-23 2014-04-01 Eveready Battery Company, Inc. Power supply for battery powered devices
US20070194750A1 (en) * 2006-02-23 2007-08-23 Eveeady Battery Company, Inc. Power supply for battery powered devices
US8615089B2 (en) 2006-02-27 2013-12-24 Apple Inc. Dynamic power management in a portable media delivery system
US7770036B2 (en) 2006-02-27 2010-08-03 Apple Inc. Power management in a portable media delivery system
US20070204174A1 (en) * 2006-02-27 2007-08-30 Apple Computer, Inc. Power management in a portable media delivery system
US7848527B2 (en) 2006-02-27 2010-12-07 Apple Inc. Dynamic power management in a portable media delivery system
US8006019B2 (en) 2006-05-22 2011-08-23 Apple, Inc. Method and system for transferring stored data between a media player and an accessory
US9160541B2 (en) 2006-06-27 2015-10-13 Apple Inc. Method and system for authenticating an accessory
US8095716B2 (en) 2006-06-27 2012-01-10 Apple Inc. Method and system for communicating capability information from an accessory to a media player
US8590036B2 (en) 2006-06-27 2013-11-19 Apple Inc. Method and system for authenticating an accessory
US8370555B2 (en) 2006-06-27 2013-02-05 Apple Inc. Method and system for allowing a media player to determine if it supports the capabilities of an accessory
US8112567B2 (en) 2006-09-11 2012-02-07 Apple, Inc. Method and system for controlling power provided to an accessory
WO2008033775A2 (en) * 2006-09-11 2008-03-20 Apple Inc. Method and system for controlling power provided to an accessory
WO2008033775A3 (en) * 2006-09-11 2008-07-24 Apple Inc Method and system for controlling power provided to an accessory
US20080092122A1 (en) * 2006-10-13 2008-04-17 Infosys Technologies Ltd. Automated performance monitoring
US8347268B2 (en) * 2006-10-13 2013-01-01 Infosys Limited Automated performance monitoring
US20080133956A1 (en) * 2006-12-01 2008-06-05 Apple Computer, Inc. Power consumption management for functional preservation in a battery-powered electronic device
US8001400B2 (en) 2006-12-01 2011-08-16 Apple Inc. Power consumption management for functional preservation in a battery-powered electronic device
US8343670B2 (en) 2007-01-25 2013-01-01 Eveready Battery Company, Inc. Use extender device
US20100190040A1 (en) * 2007-01-25 2010-07-29 Eveready Battery Company, Inc. Use Extender Device
WO2008092056A1 (en) * 2007-01-25 2008-07-31 Eveready Battery Company, Inc. Portable power supply
US20090278406A1 (en) * 2007-01-25 2009-11-12 Eveready Battery Company, Inc. Portable Power Supply
US20080231226A1 (en) * 2007-03-23 2008-09-25 Eveready Battery Company, Inc. Battery Powered Device
US8047966B2 (en) 2008-02-29 2011-11-01 Apple Inc. Interfacing portable media devices and sports equipment
US20090221404A1 (en) * 2008-02-29 2009-09-03 Apple Inc. Interfacing portable media devices and sports equipment
US8317658B2 (en) 2008-02-29 2012-11-27 Apple Inc. Interfacing portable media devices and sports equipment
US20150171933A1 (en) * 2008-04-04 2015-06-18 Canon Kabushiki Kaisha Communication device and control method therefor
US8971799B2 (en) * 2008-04-04 2015-03-03 Canon Kabushiki Kaisha Communication apparatus and method for data communication and power transmission
US20100311327A1 (en) * 2008-04-04 2010-12-09 Canon Kabushiki Kaisha Communication device and control method therefor
US9444521B2 (en) * 2008-04-04 2016-09-13 Canon Kabushiki Kaisha Wireless communication system and method for transitioning between wireless communication and wireless power transfer
US20090251007A1 (en) * 2008-04-07 2009-10-08 Adams William L Hot-Swappable Battery Retrofit Module
US8634761B2 (en) 2008-09-08 2014-01-21 Apple Inc. Cross-transport authentication
US8238811B2 (en) 2008-09-08 2012-08-07 Apple Inc. Cross-transport authentication
US8509691B2 (en) 2008-09-08 2013-08-13 Apple Inc. Accessory device authentication
US8208853B2 (en) 2008-09-08 2012-06-26 Apple Inc. Accessory device authentication
US20100109602A1 (en) * 2008-11-03 2010-05-06 Chi Mei Communication Systems, Inc. Charging device and method of operating the same
US8433943B2 (en) * 2009-08-25 2013-04-30 Elitegroup Computer Systems Co., Ltd. Power-supply expansion system and method thereof
US20110055614A1 (en) * 2009-08-25 2011-03-03 Elitegroup Computer Systems Co., Ltd. Power-supply expansion system and method thereof
US8473761B2 (en) 2010-01-06 2013-06-25 Apple Inc. Accessory power management
US8230242B2 (en) 2010-01-06 2012-07-24 Apple Inc. Accessory power management
US8069356B2 (en) 2010-01-06 2011-11-29 Apple Inc. Accessory power management
US20110167281A1 (en) * 2010-01-06 2011-07-07 Apple Inc. Accessory power management
US8756445B2 (en) 2010-01-06 2014-06-17 Apple Inc. Providing power to an accessory during portable computing device hibernation
US20110167287A1 (en) * 2010-01-06 2011-07-07 Apple Inc. Providing power to an accessory during portable computing device hibernation
US8438408B2 (en) 2010-01-26 2013-05-07 Apple Inc. Control of accessory components by portable computing device
US20110185204A1 (en) * 2010-01-26 2011-07-28 Apple Inc. Control of accessory components by portable computing device
US20110208980A1 (en) * 2010-02-22 2011-08-25 Benjamin Brooks Methods and apparatus for intelligently providing power to a device
US8661268B2 (en) * 2010-02-22 2014-02-25 Apple Inc. Methods and apparatus for intelligently providing power to a device
WO2011147785A1 (en) * 2010-05-27 2011-12-01 Sagemcom Broadband Sas Device for supplying auxiliary power to an item of equipment on a current‑limited power supply bus
FR2960661A1 (en) * 2010-05-27 2011-12-02 Sagemcom Broadband Sas A supplementary supply of a device on a limit power bus current
US20130062950A1 (en) * 2010-05-27 2013-03-14 Sagemcom Broadband Sas Device for supplying auxiliary power to an item of equipment on a current-limited power supply bus
US9092207B2 (en) * 2010-07-09 2015-07-28 Seagate Technology Llc Circuit for supplementing electrical current to a peripheral device
US20120011376A1 (en) * 2010-07-09 2012-01-12 Seagate Technology Llc Circuit for supplementing electrical current to a peripheral device
ES2381276A1 (en) * 2010-10-04 2012-05-24 Destell Gestion, S.L. Storage device and selectively transmit-receive data.
US8996892B1 (en) * 2010-10-20 2015-03-31 Marvell International Ltd. Power smart peripheral devices with external power supplies
US20140180466A1 (en) * 2011-07-13 2014-06-26 Mitsubishi Electric Corporation Numerical control apparatus
US10122197B2 (en) * 2011-11-18 2018-11-06 Sony Corporation Controlling a display based on different modes of operation
US20140245036A1 (en) * 2011-11-18 2014-08-28 Sony Corporation Electronic apparatus, charging control method, charging system, and data transmission system
US9438058B2 (en) 2012-12-28 2016-09-06 Canon Kabushiki Kaisha Electronic device
GB2511193A (en) * 2012-12-28 2014-08-27 Canon Kk Electronic device
GB2511193B (en) * 2012-12-28 2017-03-01 Canon Kk Electronic device with internal and external power supply control
US8688888B1 (en) * 2012-12-31 2014-04-01 Giga-Byte Technology Co., Ltd. Computer peripheral device and operating method thereof
US9430414B2 (en) 2013-03-16 2016-08-30 Intel Corporation Bus independent platform for sensor hub peripherals to provide coalescing of multiple reports
US9542347B2 (en) 2013-03-16 2017-01-10 Intel Corporation Host interface crossbar for sensor hub
US10312704B2 (en) 2014-01-23 2019-06-04 Apple Inc. Power adapters for powering and/or charging peripheral devices
JP2015189025A (en) * 2014-03-27 2015-11-02 セイコーエプソン株式会社 Printing device
US9588563B2 (en) 2014-05-30 2017-03-07 Apple Inc. Protocol for managing a controllable power adapter accessory
US9071357B1 (en) * 2014-07-11 2015-06-30 Emcore Corporation Data communications system including an optical fiber data link disposed between serial bidirectional electrical data busses
US9690346B1 (en) * 2015-10-30 2017-06-27 Seagate Technology Llc Load sharing across multiple voltage supplies
EP3382845A1 (en) * 2017-03-31 2018-10-03 Delta Electronics, Inc. Intelligent uninterruptible power charging apparatus and method of operating the same

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