WO2008042597A2 - Disque dur à mémoire flash qui configure un contrôleur bluetooth générique du disque dur pour qu'il soit compatible avec de multiples périphériques bluetooth - Google Patents

Disque dur à mémoire flash qui configure un contrôleur bluetooth générique du disque dur pour qu'il soit compatible avec de multiples périphériques bluetooth Download PDF

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Publication number
WO2008042597A2
WO2008042597A2 PCT/US2007/078838 US2007078838W WO2008042597A2 WO 2008042597 A2 WO2008042597 A2 WO 2008042597A2 US 2007078838 W US2007078838 W US 2007078838W WO 2008042597 A2 WO2008042597 A2 WO 2008042597A2
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WO
WIPO (PCT)
Prior art keywords
bluetooth
drive
host
flash memory
controller
Prior art date
Application number
PCT/US2007/078838
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English (en)
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WO2008042597A3 (fr
Inventor
Dhaval Parikh
Rajeev Nagabhirava
Original Assignee
Sandisk Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/536,095 external-priority patent/US7801561B2/en
Priority claimed from US11/536,155 external-priority patent/US7774027B2/en
Application filed by Sandisk Corporation filed Critical Sandisk Corporation
Publication of WO2008042597A2 publication Critical patent/WO2008042597A2/fr
Publication of WO2008042597A3 publication Critical patent/WO2008042597A3/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/387—Information transfer, e.g. on bus using universal interface adapter for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system

Definitions

  • the present invention relates generally to portable flash memory mass storage devices and Bluetooth radio communications, and more specifically to providing and configuring Bluetooth communications with a portable flash memory drive including integrated with Bluetooth functionality.
  • Bluetooth enabled peripheral devices are available on the market. Getting them to communicate with a host device such as a personal computer or personal digital assistant or the like is not always an easy task.
  • a personal computer does not have built in Bluetooth capability, one way to add the capability is through a plug in type adapter.
  • These adapters are commonly referred to as dongles.
  • a Bluetooth dongle will only operate after the proper drivers are installed.
  • the drivers of the dongle are typically installed from a CD ROM provided with the dongle, or by downloading the proper driver from the manufacturer. This is an inconvenient and often times fruitless process.
  • a portable flash memory drive about the size of keychain is provided.
  • the drive not only acts as a mass storage drive, it provides Bluetooth communications to host devices that it is plugged into.
  • the most common embodiment plugs into a USB port of a drive.
  • USB universal serial bus
  • the Bluetooth manager stored on the USB flash drive associates different classes of devices with the appropriate software applications, and therefore communication between the applications of the host device and appropriate peripheral devices can be established.
  • Bluetooth (“BT") enabled headphones can be associated with a media player, or a BT headset can be associated with a voice over IP (“VOIP”) application such as SkypeTM.
  • VOIP voice over IP
  • the manager is located on the flash drive, the WindowsTM registry does not need to be modified. Temporary environment variables are stored on the drive rather than in the WindowsTM registry.
  • a "generic" Bluetooth controller ASIC can be integrated into the flash drive.
  • the device specific information need not be in the ASIC.
  • an expensive ASIC incorporating a DSP be required in order to transmit audio/video files or for the host to properly associate a peripheral with a multimedia application and transmit the information to appropriate audio/video class peripheral.
  • FIG. 1 is a block diagram of flash drive 10OA, an embodiment of the present invention.
  • FIG. 2A is a block diagram of flash drive 10OB, another embodiment of the present invention.
  • FIG. 2B illustrates a system with host 150 communicating by Bluetooth to peripheral devices through flash drive 10OB.
  • FIG. 4 is a flowchart of auto configuration method 400, according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of auto configuration method 500, according to an embodiment of the present invention.
  • FIG. 6 is an exemplary illustration of a device class packet as the payload of a host interface packet.
  • FIG. 7 is an exemplary illustration of a Bluetooth packet as payload of the host interface packet, as communicated with flash drive IOOA or 10OB.
  • Bluetooth is an industrial specification for wireless personal area networks (PANs), also known as IEEE 802.15.1. Bluetooth provides a way to connect and exchange information between devices like personal digital assistants (PDAs), mobile phones, laptops, PCs, printers, digital cameras and video game consoles via a secure, globally unlicensed short range radio frequency.
  • PDAs personal digital assistants
  • mobile phones laptops, PCs, printers, digital cameras and video game consoles via a secure, globally unlicensed short range radio frequency.
  • USB flash drive Many computing devices are not capable of Bluetooth transmission because the hardware is not built in. Therefore the present invention provides plug-in Bluetooth functionality to those devices, in combination with the convenience and added storage of a pocket sized flash memory drive that is used to transport files.
  • the most common embodiment is referred to as a universal USB flash drive because it plugs into a USB port.
  • Connectors other than a USB connector may be utilized in different embodiments to plug into and communicate with a host device, even if the device is referred to as a USB flash drive.
  • Bluetooth wireless technology In order to use Bluetooth wireless technology, a device must be able to interpret certain Bluetooth profiles.
  • the profiles define the possible applications that work with the device.
  • Bluetooth profiles are general behaviors through which Bluetooth enabled devices communicate with other devices.
  • Bluetooth technology defines a wide range of profiles that describe many different types of use cases.
  • each profile specification contains information on the following topics: dependencies on other profiles; suggested user interface formats; and specific parts of the Bluetooth protocol stack used by the profile.
  • each profile uses particular options and parameters at each layer of the stack.
  • the configuration information regarding a profile is in the upper layers of a Bluetooth stack, typically an application layer.
  • the proper profile for a device must be used to establish communication with the device. For example, a device with a profile for a headset will not work with a printer and vice versa.
  • GAP Generic access profile
  • GAP is mandatory for proper BT implementation and is used to manage connections between different Bluetooth devices.
  • GAP exposes a high level API that can be used by the application program to configure the stack and manage connections to different Bluetooth products.
  • SDAP Services discovery application profile
  • SPP Serial port profile
  • SPP provides emulated virtual serial ports over a BT radio link. SPP exposes a high level API that can be used by the application program to transmit and receive data in a way that is very similar to a standard serial port.
  • A2DP Advanced Audio Distribution Profile
  • This is designed to transfer a 2-channel stereo audio stream, like music from an MP3 player, to a headset or car radio. It includes mandatory support for low complexity Sub Band Codec (SBC) and supports optionally: MPEG-I, 2 Audio, MPEG-2, 4 AAC and ATRAC, and is extensible to support manufacturer defined codecs.
  • SBC Sub Band Codec
  • BPP Basic Printing Profile
  • DUN Dial-up Networking Profile
  • This profile provides a standard to access the Internet and other dial-up services over Bluetooth.
  • the most common scenario is accessing the Internet from a laptop by dialing up on a mobile phone, wirelessly.
  • HID Human Interface Device Profile
  • mice Provides support for devices such as mice, joysticks, keyboards, etc. It is designed to provide a low latency link, with low power requirements.
  • HSP Headset Profile
  • VDP Video Distribution Profile
  • This profile allows the transport of a video stream. It could be used for streaming a recorded video from a PC media center to a portable player, or from a digital video camera to a TV.
  • Support for H.263 baseline is mandatory.
  • Support for MPEG-4 Visual Simple Profile, H.263 profiles 3 and 8 are optionally supported, and covered in the specification.
  • FIG. 1 illustrates flash drive IOOA communicating with host application 152 of host 150 over host interface ("HI") 130.
  • Host interface 130 may be a USB interface, a wireless USB (“WUSB”) interface, a serial ATA (“SATA”) interface, a PCI express (“PCIe”) interface, a "firewire” or IEEE 1394 interface, or any other equivalent.
  • Host 150 may be any computing device with an appropriate connector/receptacle.
  • Memory controller 108 controls the read/write operations of data to and from flash memory 114, which is preferably the NAND variety. The memory controller 108 also controls communications to and from host 150, through hub 106. Memory controller 108 is such that files stored in flash memory 114 are accessed by host 150 as if the drive were a hard disk drive.
  • Bluetooth controller 110 is an application specific intergrated circuit ("ASIC") and includes radio 112.
  • Radio 112 is the hardware responsible for transmitting and receiving the radio signal, and includes or may be referred to as a transceiver.
  • Hub 106 manages data transmission to/from memory controller 108, Bluetooth controller 112 and host interface 130. In the preferred embodiments, the hub is a USB type hub and host interface 130 is a USB interface.
  • NAND flash memory 114 are the upper layers 118 of a Bluetooth stack necessary for operation of Bluetooth controller 110 with host 150 and host application 152.
  • Flash drive IOOB of FIGS. 2 A and 2B is the similar to flash drive IOOA with the exception that hub 106 is not present, as the functionality of the hub is integrated into memory controller 108.
  • the link between Bluetooth controller 110 and hub 106 is preferably a USB link
  • the link between Bluetooth controller 110 and memory controller 108 is preferably a Universal Asynchronous Receiver/Transmitter ("UART") connection.
  • Flash drive IOOA and IOOB the functionality of which are essentially the same, may hereinafter simply be referred to as flash drive (“FD”) 100.
  • FIG. 2B illustrates a system with host 150 communicating by Bluetooth to peripheral devices 160A- 16Ox through flash drive IOOB.
  • Each of these devices may have a different profile and each different type of profile requires its own Bluetooth stack to run and to be properly associated with different host applications, such as host application 152.
  • the component layers and respective functionality of the Bluetooth stack will be described with regard to FIG. 3.
  • FIG. 3 illustrates the layers of Bluetooth protocol stack 300. Applications that interact with the stack use the stack functionality by calling different API functions. The stack takes care of all the complex communication rules that are defined in the Bluetooth specification, which is incorporated by reference in the entirety, and manages communication with the Bluetooth module.
  • Applications layer 302 primarily relates to profile configuration and interaction with external software applications.
  • Telephony control specification (“TCS) layer 304 provides call control and signaling of voice channels.
  • WAP Wireless application protocol
  • WAP Wireless application protocol
  • OBEX Object exchange
  • Radio frequency communications (“RFCOMM”) layer 308 implements functionality needed for a virtual RS232 link, including modem control signals. Most of the application profiles use RFCOMM to send and receive data.
  • Service Discovery Protocol (“SDP") layer 310 provides functionality to publish supported Bluetooth functionality (SDP server) as well as to query other Bluetooth products for Bluetooth functionality (SDP client).
  • Logical Link Control and Adaptation Protocol (“LSCAP") layer 312 allows multiple communication channels to share a single Bluetooth link (multiplexing). L2CAP layer 312 also handles segmentation and assembly of long messages.
  • LSCAP Logical Link Control and Adaptation Protocol
  • Host controller interface (“HCI") layer 316 provides a standardized communications protocol between the stack and the controller. HCI communications packets can be transmitted over UART, RS232, USB, or PC card interfaces.
  • Link manager layer 320 is responsible for the creation, modification, and release of logical links (and, if required, their associated logical transports), as well as the update of parameters related to physical links between devices.
  • the link manager achieves this by communicating with the link manager in remote Bluetooth devices using the link management protocol.
  • Baseband/Link Controller layer 324 is responsible for all access to the radio medium, and for the encoding and decoding of Bluetooth packets from the data payload and parameters related to the physical channel, logical transport and logical link.
  • Radio layer 328 is responsible for transmitting and receiving packets of information on the physical channel.
  • the Bluetooth core layers are provided as part of Bluetooth controller 110.
  • HCI layer 316, link manager layer 320, baseband/link controller layer 324, and radio layer 328 are part of the core.
  • the upper layers 118, stored in flash memory 114, comprise at least applications layer 302.
  • SDP layer 310, RFCOMM layer 308, and L2CAP layer 312 may be either part of the core, or alternatively part of the upper layers 118 stored in flash.
  • FIG. 4 is a flowchart of method 400 for configuring a "generic" or core only Bluetooth controller, according to an embodiment of the present invention.
  • step 402 FD 100 is plugged into the host. The host and FD 100 will detect the connection of the two devices. A program that enables Bluetooth operation of FD 100 will then be made available in step 406.
  • step 410 if a user has need of BT communication, he runs the BT manager which results in the loading of upper layers 118 of the Bluetooth stack from flash memory 114 into the host. FD 100 is then enumerated as a Bluetooth device and is ready to communicate with peripheral devices via Bluetooth, as seen in step 414. The profiles needed to communicate with various types of devices are now available through the upper layers 118 of the stack, as seen in step 410
  • Connection can then be established, as seen in step 422, between host 150, including applications 152, and peripheral Bluetooth devices 160 via Bluetooth controller 110 of FD 100.
  • Upper layers 118 may be stored anywhere in flash memory 114, for example in a freely available user area or in a hidden system partition. In either case, because the upper layers are stored in flash memory, they can easily be updated or changed to accommodate different profiles and different devices. Furthermore, multiple versions of upper layers 118 (different files) may be stored, and in certain embodiments a user can select which version should be installed. In some embodiments, different users of FD 100 may have different user profiles stored in the device, and a particular user profile may be associated with a particular version. Therefore, a particular user profile may be associated with different Bluetooth device profiles. The Bluetooth manager will also allow a user to assign or reassign associate software applications in the host with particular classes of Bluetooth devices, and with any Bluetooth devices that are enumerated by the host and available to the Bluetooth manager.
  • FIG. 5 is a flowchart of auto configuration method 500, according to an embodiment of the present invention.
  • a Bluetooth controller having only the core layers can be configured to work with different types of devices.
  • a specific type of Bluetooth controller need not be used, and a very flexible system that can be configured "on the fly” is achieved.
  • FDlOO is plugged in, in step 402.
  • An embodiment of the invention utilizing a U3 compliant flash drive and/or host will now be described.
  • U3 provides a platform where programs are stored and run from FDlOO.
  • environment variables for the device are not stored in the host operating system registry, but instead are stored in flash memory of the U3 device, which is FDlOO in this case. Any accommodations in the host to run the programs and operate the Bluetooth functionality of FD 100 are temporarily made during the time FD 100 is plugged in.
  • FDlOO enumerates as both a CDROM drive and separately as a mass storage device.
  • the CDROM drive has its own partition in FD 100.
  • a file in the CDROM drive is automatically executed by the host.
  • an autoexec file in the CDROM partition of the flash memory is executed by the host.
  • the autoexec file then causes a Bluetooth manager program in FDlOO to be made available to for launching.
  • the user then runs the BT manager which results in loading of the upper layers 118 of the Bluetooth stack from flash memory 114 into (an executable memory of) host 150 in step 514.
  • the Bluetooth manager program contains interface specific information beyond the core information in a "generic" or core only Bluetooth controller, as seen in step 518.
  • the interface specific information together with the core information, allow the generic controller to work with specific Bluetooth devices and classes of the devices, as indicated in step 522. This allows for maximum flexibility in Bluetooth configuration, as well as a cost effective solution based upon a cost effective basic Bluetooth controller.
  • a flash memory drive therefore provides not only Bluetooth communications to different classes of Bluetooth peripherals, but can easily accommodate new classes over time through upper layers 118. Furthermore, the flash drive of the present invention contains its own drivers needed for usage with a host, and those drivers can be loaded without the hassle of having to find a CDROM drive, with or without host administrative privileges.
  • DSP multimedia digital signal processor chip
  • the BT controller incorporating the multimedia DSP will recognize and decode the audio data with codecs provided within the DSP.
  • the payload of the host interface packets transmitted over will be audio/video packets that are yet to be decoded. While this is the case in the example of multimedia content, in general, it is also similar for other scenarios and types of peripheral devices.
  • the content of the HI packets will be device class packets that format of which differs depending on the class of the peripheral device. This can be seen in FIG. 6.
  • the need for the DSP in the BT controller is eliminated because with the provision of the appropriate upper layers 118 of the stack from flash memory, the host processor can be used to decode the multimedia content and pass it through a generic controller in FD 100 to the stereo class peripheral. This saves several dollars from the cost of each Bluetooth controller, and the overall flash drive 100. Additionally, as seen in FIG. 7, the payload of the transmitted host interface packets will be Bluetooth packets (that carry the device specific packets) and therefore, in order to decode the packets, all that is needed is a standardized Bluetooth controller in the peripheral, rather than a controller that needs to decode device class packets.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

Selon l'invention, un disque dur à mémoire flash portable comprend un contrôleur Bluetooth présentant uniquement un sous-ensemble des couches d'une pile Bluetooth nécessaire pour le fonctionnement. Celà permet l'utilisation d'un contrôleur Bluetooth générique dans le disque dur à mémoire flash. Une configuration spécifique de profils et d'autres aspects d'une communication Bluetooth sont gérés par des couches supérieures de la pile Bluetooth qui sont stockées dans la mémoire flash du disque dur et ensuite chargées dans un ordinateur hôte. La configuration et la formation de la pile Bluetooth peuvent par conséquent être facilement mis à jour et modifiés lorsque souhaité.
PCT/US2007/078838 2006-09-28 2007-09-19 Disque dur à mémoire flash qui configure un contrôleur bluetooth générique du disque dur pour qu'il soit compatible avec de multiples périphériques bluetooth WO2008042597A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/536,095 US7801561B2 (en) 2006-09-28 2006-09-28 Methods of configuring a generic bluetooth controller of a flash drive to be compatible with multiple bluetooth peripheral devices
US11/536,095 2006-09-28
US11/536,155 US7774027B2 (en) 2006-09-28 2006-09-28 Flash drive that configures generic bluetooth controller of the drive to be compatible with multiple bluetooth peripheral devices
US11/536,155 2006-09-28

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WO2008042597A2 true WO2008042597A2 (fr) 2008-04-10
WO2008042597A3 WO2008042597A3 (fr) 2008-05-29

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US8463181B2 (en) 2008-08-14 2013-06-11 Mediatek Inc. Communication apparatuses and methods for flexibly providing various application profiles of a wireless communication system
EP2677837A1 (fr) * 2012-06-22 2013-12-25 Broadcom Corporation Structure d'application avec plusieurs profiles
RU2667994C2 (ru) * 2013-08-27 2018-09-25 Бендикс Коммершел Викл Системз Ллс Устройство указания задаваемого водителем торможения для тяжелого транспортного средства
RU2670845C2 (ru) * 2013-04-09 2018-10-25 Форд Глобал Технолоджис, ЛЛК Способ оценки участка для парковки транспортного средства
US10128780B2 (en) 2014-01-31 2018-11-13 Ford Global Technologies, Llc Method and system for controlling the regenerative braking of a vehicle
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US10389729B2 (en) 2013-10-01 2019-08-20 Inventio Ag Access control using portable electronic devices

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US10198272B2 (en) * 2015-03-02 2019-02-05 Insyde Software Corp. Firmware display of paired bluetooth status information during boot

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8463181B2 (en) 2008-08-14 2013-06-11 Mediatek Inc. Communication apparatuses and methods for flexibly providing various application profiles of a wireless communication system
EP2677837A1 (fr) * 2012-06-22 2013-12-25 Broadcom Corporation Structure d'application avec plusieurs profiles
RU2670845C2 (ru) * 2013-04-09 2018-10-25 Форд Глобал Технолоджис, ЛЛК Способ оценки участка для парковки транспортного средства
RU2670845C9 (ru) * 2013-04-09 2018-11-30 Форд Глобал Технолоджис, ЛЛК Способ оценки участка для парковки транспортного средства
RU2667994C2 (ru) * 2013-08-27 2018-09-25 Бендикс Коммершел Викл Системз Ллс Устройство указания задаваемого водителем торможения для тяжелого транспортного средства
US10389729B2 (en) 2013-10-01 2019-08-20 Inventio Ag Access control using portable electronic devices
US10128780B2 (en) 2014-01-31 2018-11-13 Ford Global Technologies, Llc Method and system for controlling the regenerative braking of a vehicle
RU2673206C2 (ru) * 2014-01-31 2018-11-22 Форд Глобал Технолоджис, ЛЛК Способ и система управления рекуперативным торможением в транспортном средстве
WO2019028379A1 (fr) * 2017-08-04 2019-02-07 Paccar Inc Systèmes et procédés pour réguler des réglages dynamiques pour une gestion de commande de vitesse de moteur
US10371077B2 (en) 2017-08-04 2019-08-06 Paccar Inc Systems and methods to regulate dynamic settings for engine speed control management

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Publication number Publication date
TW200830183A (en) 2008-07-16
WO2008042597A3 (fr) 2008-05-29
TWI362003B (en) 2012-04-11

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