• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    COMPUTER SYSTEM, METHOD OF CHARGING A PORTABLE DEVICE FROM A COMPUTER SYSTEM AND MEDIA READABLE BY COMPUTER Computing system including a port to supply power to a portable device. The power state of the computing system is determined and the type of charge port to be provided can be used in the power state of the computing system.
    公开号:BR112013004867B1
    申请号:R112013004867-0
    申请日:2010-09-02
    公开日:2020-11-24
    发明作者:Jeffrey Jeansonne；Thomas Sawyers；Walter Fry；Rahul Lakdawala
    申请人:Hewlett-Packard Development Company L.P；
    IPC主号:
    专利说明:

    History of the invention
    A portable electronic device can operate on rechargeable batteries. The device's batteries can be charged by connecting the device to an external power source. The external power supply_can- be a direct current (DC) power supply. Brief description of the drawings
    Some configurations of the invention are described with respect to the following figures: Figure 1 is a diagrammed block according to an exemplary configuration of a computing system; Figure 2 is a diagrammed block according to an exemplary configuration of a computing system; Figure 3 is a diagrammed block according to an exemplary configuration of a computing system; Figure 4 is a diagrammed block according to an exemplary configuration of a computing system; Figure 5 is a schematic diagram according to an exemplary configuration; Figure 6 is a table of logical values according to an exemplary configuration; and Figure 7 is a flow chart of a method according to an exemplary configuration. Detailed description of the invention
    A portable electronic device can be a device with a rechargeable battery. For example: a portable electronic device can be a cell phone, a portable music player, a camera or another device. A portable electronic device may include a data connection port that allows the transfer of digital data to and from the portable electronic device. The data connection port may also have terminals for receiving power through the data connection port. The power received from the data connection port can be used to charge the battery or power the portable device.
    The data connection port can be a universal serial bus (USB) port or another data connection port that supplies power to a portable electronic device connected to the data connection port.
    A battery, such as an ion-lithium battery or polymer lithium battery, can charge at a different rate, depending on the amount of current available in the battery charging circuit. Current is the charge flow through the conductor. The charge is in the form of electrons that move along the conductor. The battery stores electrons when charging and supplies electrons for a charge when the portable electronic device is in use. Increasing the current flow available to the battery can reduce the time used to charge the battery. For example, if the current drawn to charge the battery is 1.5 amps, then the battery could charge less than it would take if the current drawn to charge the battery was 0.5 amps.
    A Battery Charge Specification (BCS) for USB can define charging protocols. For example, the USB Implementation Forum's Battery Charge Specification, Revision 1.1, includes references to a dedicated charge port (DCP) and a downstream charge port (CDF). DCP and CDP can allow a device to connect to a USB port and charge at a rate higher than the standard USB charge rate.
    A Standard Downstream Port can be a downstream port of a computing system that expects a downstream device to consume less than an average of 2.5 mA when disconnected or suspended, up to a maximum of 100 mA when connected and not suspended, and up to a maximum of 500 mA, if so configured and not suspended. The Standard PortaDownstream pulls the data lines, such as the D + and D- lines, to the earth via a 15 kOhm resistor. The Standard Downstream Port may be the ability to sense whether a handheld device is driving the D + line and to react in some way, such as "waking up" the computing system.
    The Downstream Load Port is the downstream port of a device, required to support the downstream load port characteristics of the Battery Charge Specification. The Downstream Charge Port is capable of producing a current of, for example, 1.5 amps, at any time.
    According to the Battery Charge Specification, a Dedicated Charge Port is a downstream port on a device that releases power through a USB connector, but is not able to enumerate a downstream device. A Dedicated Charge Port is required to produce at a minimum current, such as 1.5 amps. It is required that a Dedicated Cargo Port can short circuit the data lines, such as the D + line to the D- line.
    The standards are not compatible with the power management states of a computer system. For example, a protocol such as CDP requires the presence of a USB host and if the computer is in a disconnected state, such as the S5 disconnected state of the advanced configuration and power interface (ACPI) standard, there will be no USB host. . If a portable device is connected to a computer with CDP, but is in the off state, the battery of the portable electronic device may not charge at the standard rate above, since it would expect to be communicating with a USB host. The DCP protocol can connect two signal terminals together, to indicate that the port is a DCP. If the signal terminals are connected together, data cannot be transmitted over the signal terminals and thus there can be no data transfer between the computer and the portable electronic device.
    In one configuration, a computing system can include a port for data communication and for supplying power to a portable device. A power supply can provide a current for the portable device. A signal generator can provide a signal indicating the power status of the computing system. -A controller can receive the signal and determine the type of charge port for the portable device, based on the power status of the computing system.
    With reference to the figures, figure 1 is a block diagram according to an exemplary configuration of a computing system. The computing system 100 can include a signal generator 110 connected to a controller 105 via a first connection 115. Controller 105 can be connected to a port 125 via a second connection 120. A power supply 130 can be connected to port 125, via a third connection 135.
    Port 125 can communicate data and supply power to a portable device. Port 125 can be, for example, a USB port or another port that provides communications and power for a portable device.
    The power supply can provide a current for port 125, for powering a portable device connected to port 125. The power supply can provide constant current for the port, or provide different current levels. For example, the power supply can offer a constant 1.5 amps allowing a portable device to consume any value up to 1.5 amps and the power supply can supply the current drawn by the portable device. The amount consumed by the handheld device can be determined by the handheld device, after a handshake. In another example, the power supply may be off and supply no current to the port, or it may provide only a reduced current value, such as 0.5 amps. Signal generator 110 may be part of a controller hub. The controller hub can be, for example, the set of integrated circuits (chipset) of a computer system, which may include multiple input / output controllers for communication with memory, graphics processing, network communications or other processes, from . entrance exit. The signal generator 110 can ■ 10 provide a signal indicating the power status of the computing system. The power state of the system can be, for example, an S5 (off state), an S3 (low power state), an S0 (operational state), according to the ACPI standard. Controller 105 can receive a signal from signal generator 110 indicative of the power status of computing system 100 and determine the type of charge port for the handheld device, based on the power status of the computing system. In one configuration, if the power supply 20 is in the off state, as indicated by the signal communicated at connection 115, then the type of charge port determined by controller 105 may be a Dedicated Charge Port (DCP). The Dedicated Charge Port does not use a USB host, so the computer does not have to be an operational USB host and can allow a portable electronic device to draw more current from port 125 than would be allowed if port 125 were a USB port standard.
    In a configuration, if the power supply is in an operational state, indicated by the signal communicated at the time of connection 115, then the type of load port may be a downstream load port (CDP). The downstream load port (CDP) ) requires a USB 35 host and also allows data transfer through the port.
    Figure 2 is a block diagram according to an exemplary configuration of a computing system. The door 125 can be connected to the portable device 240. The portable device 240 can include a battery 245. The battery 245 can be charged by received energy port 125. Port 125 can receive power from power supply 130.
    In one configuration, the power supply 130 is capable of supplying an amount of current at least equal to the maximum that can be drawn by the portable device 240. For example, the power supply 130 may be able to supply 1.5 amps for the portable device 240 in order to charge battery 245. In one configuration, it is portable device 240 that determines how much current can be consumed through port 125. To determine the amount of current that portable device 240 consumes through port 125, the device can do a handshake. The handshake can be, for example, a signal from the controller received by the handheld device. If controller 105 provides a handshake that is completed with handheld 240, handheld 240 may consume a greater amount of current than it would, if the handshake were not completed. In one configuration, the current supplied by the power supply 130 increases if the controller 105 completes the handshake, because the portable device 240 is pulling additional power from the power supply 130.
    In a low power state, port 125 can be a Dedicated Charge Port, if a handshake is completed with handheld device 240. In one configuration, handheld device 240 can determine that port 125 is a dedicated charge port. The port signal lines will be short-circuited together, if the port is a dedicated cargo port.
    A computing system that is in a low energy state can receive a signal from the portable device 240, through the port, which "wakes up" the computing system 100 from the low energy state. If the computing system is "awakened" from the low power state, port 125 cannot be a dedicated load port (DCP). A computing system 100 that is in an operational state after being "awakened" may have a port 125 that is a downstream load port if a handshake is completed. A computer system 100 that is connected to a portable device 240 through a downstream load port can maintain data communication with. the portable device through port 125, if port 125 is a downstream load port.
    Figure 3 is a block diagram according to an exemplary configuration of a computing system. A computing system 300 can include a 355 battery. The 355 battery can supply power to the computing system 300 and can supply power to the source. supply system 330. The computing system 300 may include a signal generator 310 to generate a signal indicating the power status of the computing system 300. The signal can be received by controller 305 via connection 315. If a computing system is in a low power state, controller 305 may designate port 325 as a dedicated charge port. The computing system 300 may include a threshold controller 360 to disable the dedicated charge port, if the battery capacity is below the threshold. A threshold can be defined by the user, pre-programmed or dynamic. In one example, if the threshold is 20 percent of the battery capacity and the battery charge drops to 20 percent of the battery capacity, the 360 threshold controller will disable the dedicated charge port. If the dedicated load port is disabled, the power supply will not be able to supply more energy to port 325 through connection 335, or controller 305 will not be able to handshake with port 325 through connection 320. In case controller 305 do not do the handshake with the port, the portable device may revert to a standard USB port mode and consume current based on standard USB mode, such as, for example, 0.5 amps.
    If the computing system is in an operational state, as indicated by signal generator 310 for controller 305, then controller 305 may designate port 325 as a downstream load port. If the port is a downstream load port, the threshold controller 360 can be used to determine if the battery charge is below a JLimiar and disable the downstream load port, telling the controller 305 not to handshake the port 325.
    Figure 4 is a block diagram according to an exemplary configuration of a computing system. The computing system 400 can include a processor 475 connected to a memory 47 0. The memory can be a non-volatile memory that provides storage for the basic input and output system (BIOS) instructions. The BIOS instructions can be controlled by the user and can be used to determine whether port 425 can become a dedicated load port, whether the system is in a low power state or a powered off state. The processor can be connected to the peripheral controller hub 410. The peripheral controller hub 410 may include a signal generator to indicate the power status of the computing system 400 to controller 405, via connection 415.
    The peripheral controller hub 410 can connect to a computer-readable medium 465. The computer-readable medium can be a non-volatile memory or a volatile memory. For example, the computer-readable medium can be a hard disk or random access memory (RAM). The computer-readable medium may include instructions that, if executed by the processor, will cause the computing system 400 to determine a power status of the computing system, using peripheral controller hub 410. The instructions may cause the system to provide a port 425 that be a dedicated load port if the 400 computing system is in a low power state, and a downstream load port if the 400 computing system is in an operational state.
    The computing system 400 can include a 455 battery. A threshold controller 460 can monitor the 455 battery and determine whether the battery charge is below the battery capacity threshold. The threshold controller 460 will be able to control the balance of the power supply 430 - or the controller 405.
    Figure 5 is a schematic diagram according to an exemplary configuration. In one configuration, controller hub 510 can provide at least one signal to a charge port controller 505. For example, controller hub 510 can provide a first signal and a second signal. For example, the first signal 590 can be an SLP S3 # and the second signal 595 can be an SLPS4 #, according to the ACPI standard. The charge door controller 505 can receive signals at inputs CTL1 and CTL2. For example, if the first signal 590 is a logical 0 and the second signal 595 is a logical 0, then the system is in S5, or off. If the first signal 590 is a logical 0 and the second signal 595 is a logical 1, then the system is in S3, or asleep state. And if the first signal 590 is a logic 1 and the second signal 595 is a logic 1, then the system will be in S0 or operational state.
    A controller 560 can provide a third signal 585 to a charge port controller 505 received at input CTL3. Controller 560 can be, for example, a keyboard controller. The third signal 585 can be activated by the BIOS to instruct a charge port controller 505 to allow the supply of a dedicated charge port or a downstream charge port in static mode, based on the power state of the system. In dynamic mode, the third signal 585 can be disabled if it is determined that the battery of the computing system is below a threshold. For example, if the system is in an operational state, the third signal 585 can be disabled if the battery charge is at a critical battery level, such as 5 percent of the battery capacity. Another example: if the system is in a low power state, the third signal 585 will be disabled if the battery is below a threshold defined by the user or below a critical threshold, and can be reactivated if the _system.system is connected to an external source or the battery is above the threshold.
    The controller_PWR_ON 580 signal can be received by the power supply 530. The power supply 530 determines, based on the controllerPWR_ON 580 signal and the V5CPEN 581 signal, that energy must be dispensed at + V5CP, at 582.
    Figure 6 is a table of logical values according to an exemplary configuration. If the third signal 585 is a logical 0, the first signal 590 is a logical 0 and the second signal 595 is a logical 0, the Charge Port mode will be disabled and the system will be in S5, with V5CP forced through the controllerPWRGN signal 580. The third signal 585 can be enabled from this mode, if the computer system switches from battery to AC power.
    If the third signal 585 is a logic 1, the first signal 590 is a logical 0 and the second signal 595 is a logical 0, the load port mode will be DCP and the System will be in S5 with V5CP activated by the third signal 585. The cargo door will be enabled and the cargo door controller 505 will be in DCP mode. The third signal 585 can be disabled during this mode, if run from the Battery, and the 560 Controller will determine if the battery is below the user defined configuration. The Controller 560 can optionally disable the third signal 585, if a critical battery situation appears necessary, which would then end any BCS charging session in process, and force the charge door to close.
    If the third signal 585 is a logical 0, the first signal 590 is a logical 0 and the second signal 595 is a logical 1, the Load Port mode will be SDP and the System will be in S3. The Charge Port will be enabled, but the third signal 585 will indicate that Charge Mode is disabled. The third signal 585 can be enabled from this way, in case the computer system switches from battery to AC power.
    If the third signal 585 is a logic 1, the first signal 590 is logic 0 and the second signal 595 is logic 1, the Load Port mode will be DCP and the System will be in S3. The Charge Port will be enabled and the third signal 585 will indicate that Charge Mode is enabled. The third signal 585 can be disabled during this mode, if run from the Battery, and the Controller 560 will determine whether the battery is below the user defined settings. The Controller 560 can optionally disable the third signal 585 if a critical battery situation appears necessary, which would then end any BCS charging session in process, and force the port into SDP mode.
    If the third signal 585 is a logic 0, the first signal 590 is a logic 1 and the second signal 595 is a logic 1, the load port mode will be SDP and the System will be at S0. Controller 560 should define the status of the third signal 585 according to the user settings received. The third signal 585 never changes state, in this case.
    If the third signal 585 is a logic 1, the first signal 590 is a logic 1 and the second signal 595 is a logic 1, the charge port mode will be CDP and the System will be at S0. Controller 560 should set the state of the third signal 585 according to the user settings received, but ignores the user defined threshold (for state S0). The 560 Controller can optionally disable the third signal 585, if a critical battery situation appears necessary, which would then end any BCS charging session in process, and force the port into SDP mode.
    Figure 7 is a flow chart of a method according to an exemplary configuration. The method can load a portable device from a computer system. The method can determine the power state of the computing system no__605._ If the power state of the computing system is in an operational power state, the method will now adjust the type of charge port based on the power state. system operating, no 620. The type of cargo port can be determined by a controller, for example, based on the operating state of the computing system, the controller may designate the port as a downstream cargo port or as a standard downstream port. After the port type designation, it will be possible to supply power to the 625 computing system, for charging a portable device. Alternatively, power is always supplied to the port and the controller exchanges a handshake with the handheld device, to indicate the power available to the handheld device.
    If it is determined that the power state of the computing system at 605 is a low power state, then the type of charge port will be based on the low power state of the computing system at 610. The low power state can be an "asleep" state S3 or it can be an off state S5. The charge port mode can be the same, in the sleeping state and in the off state, or it can be different. For example, when in the off state, the door can be turned off or in DCP, while in the sleeping state the load can be in SDP or DCP mode. After determining the type of charge port, power can be supplied to the computing system port no 615 to charge a portable device. The method may also include determining a battery threshold and changing the type of charge port or disabling the Dedicated Charge port and Downstream Charge Port, if the battery charge is determined to be below the threshold. For example, if the battery threshold capacity is set to 20 percent and the battery charge drops below 20 percent of the battery capacity, the type of charge port can be changed. After determining the type of port in 610 or 620- a .handshake protocol _ is determined to indicate the amount of energy available to the handheld device.
    The described techniques can be incorporated in a computer-readable medium to configure the computing system to execute the method. The computer-readable medium may include, for example, and without limitation, any of the following: magnetic storage media, including disk and tape storage media; optical storage media, such as compact discs (for example, CD-ROM, CD-R, etc.) and digital video disc storage media; holographic memory; non-volatile memory storage media, including semiconductor based memory units, such as FLASH, EEPROM, EPROM, ROM memory; ferromagnetic digital memories; volatile storage media, including registers, temporary storage memory or caches, main memory, RAM, etc., just to name a few. Other new and different computer-readable media can be used to store and / or transmit the software modules discussed here. Computer systems can be found in many forms, including without limitation mainframes, minicomputers, servers, workstations, personal computers, notebooks, personal digital assistants, various wireless devices and embedded systems, just to name a few. In the description above, numerous details have been provided for a better understanding of the present invention. However, it should be understood by those with experience in the art that the present invention can be practiced without such details. Although the invention has disclosed a limited number of configurations, persons skilled in the art will notice numerous modifications and variations thereof. The attached claims are intended to cover such modifications and variations, within the true essence and scope of the invention.
    权利要求:
    Claims (13)
    [0001]
    1.Computing system, characterized by the fact that it comprises: -a port to communicate data and to supply power to a portable device; -a power supply to supply a current to the portable device; - a signal generator to provide a signal indicating the power status of the computing system; and -a controller for receiving the signal and determining the type of charge port for the handheld device, based on the power status of the computing system, where the type of power charging port is selected from at least one dedicated cargo port, a downstream cargo port and a standard downstream port; -the port is identified as the dedicated charge port by the handheld device, if a handshake is completed with the handheld device and the signal indicates a low energy state.
    [0002]
    2. System, according to claim 1, characterized by the fact that the controller provides a handshake that if completed with the portable device, the portable device can draw a greater amount of current than if the handshake was not completed.
    [0003]
    3.System, according to claim 2, characterized by the fact that the current supplied by the power supply increases if the controller completes the handshake.
    [0004]
    4.System, according to claim 1, characterized by the fact that the signal lines and power lines of the port are configured in such a way that the portable device recognizes the port as the dedicated cargo port.
    [0005]
    5.System, according to claim 1, characterized by the fact that if the port is configured to allow the portable device connected to the door to wake the computing system from a low energy state, the port cannot be the dedicated charge port .
    [0006]
    6. System, according to claim 1, characterized by the fact that the port is identified as the downstream load port by the portable device if a handshake is completed and the computing system is in an operational power state.
    [0007]
    7. The system, according to claim 6, characterized by the fact that the computing system communicates data with the portable device through the port if the port is the downstream cargo port.
    [0008]
    8. System, according to claim 1, characterized by the fact that it also includes a battery threshold controller to disable the handshake for one of the dedicated charge port, the dedicated charge port or both, if the battery capacity is below of a threshold.
    [0009]
    9. Method of charging a portable device from a computing system, characterized by the fact that: determining the power status of the computing system; supply power to a computer system port to charge a portable device; -provide a signal indicating the power status of the computing system; -adjust the type of energy load port based on the power status of the computing system; wherein the type of power cargo port is selected from at least one dedicated cargo port, a downstream cargo port and a standard downstream port; -the port is identified as the dedicated charge port by the handheld device, if a handshake is completed with the handheld device and the signal indicates a low energy state.
    [0010]
    10. Method, according to claim 9, characterized by the fact that it also includes the selection of a battery threshold and the disabling of the dedicated charge port, the downstream charge port and handshake protocols.
    [0011]
    11. Method, according to claim 9, characterized by the fact that it also includes the provision of a handshake protocol for communication with a portable device.
    [0012]
    12. Method, according to claim 9, characterized by the fact that it also comprises the downstream load port where data is communicated from the port to a portable device and the standard downstream port, where the configuration of the data prevents a handshake.
    [0013]
    13. Computer-readable medium, characterized by the fact that it comprises instructions for execution on a computer, in which the instructions, when executed by the computer, cause the computing system to carry out the method as defined in any of claims 9 to 12.
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-08-13| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2019-12-10| B25G| Requested change of headquarter approved|Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P. (US) |
    2020-08-11| B09A| Decision: intention to grant|
    2020-11-24| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 24/11/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/US2010/047760|WO2012030348A1|2010-09-02|2010-09-02|Charging port|
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