105 results about "Device descriptor" patented technology

Using peer-to-peer device descriptors for determining product compatibility involves obtaining, via a home network, descriptors that describe a composition of the home network. The home network composition descriptors are compared to descriptors of products available from an e-commerce service provider that is external to the home network. The comparison determines compatibility of the products with the devices of the home network. Identity of compatible products selected from the products based on the comparison is communicated to a user.

A USB device, integrated circuit, smart card and method are disclosed. A USB transceiver is connected to a data interface and operable at a respective low speed and full speed configuration. A processor as a USB device controller is operatively connected to the low speed USB transceiver and full speed USB transceiver and operable for transmitting a different device descriptor to a USB host for performing an enumeration depending on whether a low speed or high speed operation is chosen.

A method for changing operation of a device, comprising: sending target device descriptors to the device's device emulator, which processes and stores the descriptors as the current descriptors in memory, and the device emulator responding to a query from a host simulating operation of the target device. Using the method, the host recognizes the device as a different, target device, such as printers, MFPs, peripherals, digital cameras, etc. Device emulation enables installation and other testing of a new and yet unavailable target device under development. The methods also include USB device enumeration, making a print job containing extended PJL commands and sending it using a generic device driver, emulator firmware analyzing and storing the descriptors in registers, sending a line reset command to simulate device detachment and reattachment, and meeting timing requirements of USB detached and attached states.

A method for automatically identifying an operating system for a USB device begins at initializing the USB device, and recording USB commands sent from the operating system. The USB device determines the operating system as a first operating system when there are two successive USB commands of Get Product String, there is one USB command of Get Vender String, there is no USB command of Reset ahead of a USB command of Set Address, there is no USB command of Get Language ID, or there is no USB command of Set Feature Report. The USB device determines the operating system as a second operating system when there is no USB command of Get Vender String, there are two USB commands of Get Language ID and two USB commands of Get Product String, there is one USB command of Get Device Descriptor following a USB command of Get Product String, or there is one USB command of Set Interface Report.

A method for changing operation of a device, comprising: sending target device descriptors to the device's device emulator, which processes and stores the descriptors as the current descriptors in memory, and the device emulator responding to a query from a host simulating operation of the target device. Using the method, the host recognizes the device as a different, target device, such as printers, MFPs, peripherals, digital cameras, etc. Device emulation enables installation and other testing of a new and yet unavailable target device under development. The methods also include USB device enumeration, making a print job containing extended PJL commands and sending it using a generic device driver, emulator firmware analyzing and storing the descriptors in registers, sending a line reset command to simulate device detachment and reattachment, and meeting timing requirements of USB detached and attached states.

The invention discloses an establishing method of a distributed type management monitoring system, establishing the distributed type management monitoring system based on a distributed type file system. Furthermore, the invention also discloses a monitoring method of the distributed type management monitoring system, comprising the following steps: a subfile system of the distributed type management monitoring system updates a file recording monitoring information at fixed time and correspondingly updates an equipment descriptor table; the subfile system updates the equipment descriptor table and informs a service terminal of updating a file descriptor table; and the service terminal finds the equipment descriptor table corresponding to an appointed network element by traversing the file descriptor table and reads an appointed file according to the equipment descriptor table. Correspondingly, the invention provides the distributed type management monitoring system comprising the service terminal, the file descriptor table and the subfile system. Therefore, by the invention, the self and independent monitoring of each network element is realized, unnecessary communication between the network elements is reduced, and the stability of the distributed type management monitoring system is enhanced.

A DMA device prefetches descriptors into a descriptor prefetch buffer. The descriptor prefetch buffer is sized to hold an appropriate number of descriptors for a given latency environment. To support linked lists of descriptors, the DMA engine prefetches descriptors based on the assumption that the descriptors are in order in memory, and any descriptors found to violate this assumption are discarded. The DMA engine tries to keep the descriptor prefetch buffer full by requesting multiple descriptors per transaction whenever possible. The bus engine reads these descriptors from system memory and writes them to the prefetch buffer. The DMA engine can also use aggressive prefetching, where the bus engine requests the maximum number of descriptors that the buffer will support whenever there is any room in the descriptor prefetch buffer. The DMA device discards any remaining descriptors that cannot be stored.

The present invention relates to an automatic mapping and updating computer switch device. The computer switching device provides the compatibility between a plurality of devices and a plurality of computers, and comprises a USB host chip connected to the plurality of peripheral devices each containing a USB connector for sending the necessary data (USB device descriptor / report) to a plurality of USB device chips, thus, the computers can acquire the necessary data of the peripheral devices through the connected USB device chips. Whenever the computer switching device re-boots or any of the peripheral devices are plugged in / pulled out, the USB host chip reads the new necessary data again with the previous ones, if any differences are found, the new necessary data is send to the USB device chips for storage. The aforesaid procedure is called DDM (Dynamic Devices Mapping) or full USB Enumeration or full USB Initiation.

The invention discloses a plug-in equipment matching and maintaining method, which comprises the following steps of: a server continuously collects the drive program of each piece of plug-in equipment to form a resource library; and according to equipment information in the equipment descriptor of the plug-in equipment, a corresponding drive program is matched, loaded and installed in the resource library. According to the scheme of the invention, a user can control without carrying out any operation after the plug-in equipment is connected with a terminal, and the installed drive program is an optimal dedicated drive program instead of a public-version drive program. On the premise of the stability and the compatibility, the perfect function and the powerful integral performance are brought.

A peripheral for notifying a USB-connected upper apparatus of a device descriptor and allowing the upper apparatus to specify a communication partner destination by the function information shown in the device descriptor has: a peripheral function information holding unit which holds function information showing functions of the peripheral; a dependent peripheral function information holding unit which holds function information showing functions of a USB-connected dependent peripheral; and a USB control unit which reads out one of the function information held in those holding units by a selecting instruction and notifies the upper apparatus of the device descriptor in which the read-out function information is shown. A peripheral which can realize a multi-function without developing a dedicated driver and installing it into a PC is provided.

The present invention relates to an automatic mapping and updating computer switch device. The computer switching device provides the compatibility between a plurality of devices and a plurality of computers, and comprises a USB Host Chip connected to the plurality of peripheral devices each containing a USB connector for sending the necessary data (USB device descriptor / report) to a plurality of USB Device Chips, thus, the computers can acquire the necessary data of the peripheral devices through the connected USB Device Chips. Whenever the computer switching device re-boots or any of the peripheral devices are plugged in / pulled out, the USB Host Chip reads the new necessary data again with the previous ones, if any differences are found, the new necessary data is send to the USB Device Chip for storage.The aforesaid procedure is called DDM (Dynamic Devices Mapping) or full USB Enumeration or full USB Initiation.

A peripheral for notifying a USB-connected upper apparatus of a device descriptor and allowing the upper apparatus to specify a communication partner destination by the function information shown in the device descriptor has: a peripheral function information holding unit which holds function information showing functions of the peripheral; a dependent peripheral function information holding unit which holds function information showing functions of a USB-connected dependent peripheral; and a USB control unit which reads out one of the function information held in those holding units by a selecting instruction and notifies the upper apparatus of the device descriptor in which the read-out function information is shown. A peripheral which can realize a multi-function without developing a dedicated driver and installing it into a PC is provided.

An information handling system (IHS) unambiguously addresses networked devices connected by a local area network (LAN) based network interface controller (NIC) by detecting a device descriptor of LAN-based NIC, determining that the device descriptor indicates a capability for assigning a reserve media access control (MAC) address to the networked device, writing the reserve MAC address in the LAN-based NIC of the networked device, and associating the reserve MAC address with the networked device in an inventory data structure for the IHS.

The invention provides USB interface-based communication equipment and a method for realizing service allocation. The method is used in the USB interface-based communication equipment. The method comprises the following steps that: the USB interface-based communication equipment reports an equipment descriptor to a host so that the host finishes loading a host driver; the USB interface-based communication equipment receives a control command transmitted by a host side through a USB interface after finishing loading the host driver; and the USB interface-based communication equipment allocates service attribute information according to the control command so that the service attribute information can indicate the service attribute of the USB interface-based communication equipment. USB control information of the invention controls the service attribute information so that the equipment of the invention can realize service differentiation support aiming at different operating systems. In addition, the USB interface-based communication equipment is easier to integrate without other additional operation.

The present invention is related to a resource sharing device in a communication system including multiple computing devices. The resource sharing device includes a first interface to couple with a first computing device, a second interface to couple with a second computing device, a function device to provide a function accessible to the first and second computing devices, and a switch device coupled with the function device, the switch device to generate a device descriptor of the function device so that when the first and second computing devices are coupled with the resource sharing device the device descriptor of the function device is sent to the first and second computing devices so as to share the function of the function device to the first and second computing devices and allow the first and second computing devices to be controllable at a time by the function of the function device.

Described are techniques for migrating data from a source device to a target device. A source device descriptor of the source device including source device geometry parameters and a source device partition definition structure is received. Target device geometry parameters are received. The source partition definition structure is translated and a mapped partition definition structure in accordance with the target device geometry parameters is generated. A target device descriptor including the target device geometry parameters and the mapped partition definition structure is generated. The target device descriptor is stored on the target device. Data for one or more partitions of the source device is migrated to the target device.

The present invention includes a system and methods for upgrading software on a mobile terminal The system includes a network management computer (NMC) adapted to receive a plurality of software upgrades and to transmit one of the plurality of software upgrades to one of a plurality of mobile terminals through a satellite link. The mobile terminal can include an upgradeable component, which in turn includes a detachable device descriptor (DDD) corresponding to operating characteristics of the upgradeable component. According to the present invention, the NMC is adapted to transmit the one of a plurality of software upgrades to the mobile terminal in response to the DDD of the upgradeable component. Methods employing similar features and advantages are also disclosed herein.

A method and apparatus for processing data samples utilizes a channel map populated by device descriptor, or by an application program interface. Packet processing code loops through all of the samples contained in a packet while incrementing through a channel map and steering table without having to look up a table to determine in what audio buffer the sample is to be stored or read. Additionally, the present invention utilizes a stride map, so the audio subsystem knows how many samples to skip in order to reach the next sample frame. The present invention can be used for handling received packets as well as forming packets to send over a bus.

According to different VID / PIDs stored in a device descriptor of a USB composite device, various functions and corresponding drivers are assigned and switched. Therefore, the switches of functions are achieved without detaching and attaching the USB composite device. Possible problems while switching operation systems of different platforms are overcome. And the high cost in embedding various drivers into a mainframe is reduced.

A system for enhancing universal serial bus (USB) applications comprises an upstream processor, a downstream processor and a main controller. The upstream processor accepts standard USB signals from a USB host and independently provides responses required by USB specification within the required time frame. The upstream processor also contains storage for descriptors for a device associated with this upstream processor. The main controller obtains the descriptors by commanding the downstream processor, and passes them to the upstream processor. The downstream processor connectable to USB-compliant devices accepts the USB signals from the USB-compliant devices and provides responses required by USB specification within the required time frame. The main controller interconnects the upstream and downstream processors, and provides timing independence between upstream and downstream timing. The main controller also commands the downstream processor to obtain device descriptors independent of the USB host.

A USB device, integrated circuit, smart card and method are disclosed. A USB transceiver is connected to a data interface and operable at a respective low speed and full speed configuration. A processor as a USB device controller is operatively connected to the low speed USB transceiver and full speed USB transceiver and operable for transmitting a different device descriptor to a USB host for performing an enumeration depending on whether a low speed or high speed operation is chosen.

The invention provides a method for controlling a universal serial bus (USB) port equipment switch. The method comprises the following steps of: classifying USB equipment; writing descriptors of the classified equipment into a basic input / output system (BIOS); controlling the opening and the closing of a USB port and setting a supported equipment type in the BIOS; checking the set descriptors after a host is started and comparing the descriptors with the equipment inserted into the USB port; and starting if the equipment type is supported, otherwise, outputting error information. By the method, the USB port can be controlled on a BIOS layer and a Linux kernel layer respectively, the problem existing in the traditional invention is solved, and more and fine-grained methods are provided for users to control the USB port.

The invention relates to a method for automatically detecting an operating system on a USB device. Firstly, the USB device is initialized; secondly, the USB device receives the Get Device Descriptor USB order transferred by the operating system, and then judges whether the operating system transfers the Reset USB order or not; under the circumstance that the operating system does not transfer the Reset USB order, the flag is set to be 0, or the flag is set to be 1; thirdly, the USB order transferred to the USB device by the operating system is recorded; fourthly, the operation of judging whether the operating system transfers the Set Interface Report USB order or not is carried out; and finally, under the circumstances that the operating system transfers the Set Interface Report USB order and the flag is 1, the USB device judges that the operating system is the Microsoft Windows operating system, or the USB device judges that the operating system is the Apple MAC operating system.

The present invention discloses a method for controlling the smart electric appliance by connecting a key device to a smart electric appliance and performing control operations on the smart electric appliance in accordance with the control settings for the key device after positively authenticating the internal device descriptor of the key device. Also, the present invention discloses a system according to the method mentioned above, including a smart electric appliance comprising a USB interface module, an authentication module, an execution module and a general control module, and a key device comprising a smart storage module. By introducing the key device, authenticating the key device before allowance of use of the smart electric appliance, and setting different control operation levels for different users of the smart electric appliance, it becomes very secure to use the smart electric appliance, while it becomes more flexible to use the same.

Redirection policies can be applied based on the Windows class of a USB device. When an agent on the server receives notification that a USB device has been connected to a client terminal that has a remote desktop connection with the server, the agent can employ the device descriptor contained in the notification to obtain the Windows class of the device. If the Windows class is obtained, and prior to causing the device to be enumerated on the server, the Windows class can be employed to apply one or more redirection policies. In this way, a redirected USB device can be managed at a much more granular level.

The invention discloses a method for simulating a USB (Universal Serial Bus) device, which is used for realizing simulation of a composite USB device. The method comprises the steps that: a terminal side receives a USB device enumeration instruction sent form a personal computer PC side through a USB interface; the terminal side queries a local device descriptor and a local configuration descriptor according to the USB device enumeration instruction, wherein the device descriptor and the configuration descriptor are set according to bluetooth characteristics; and the terminal side returns the queried device descriptor and the queried configuration descriptor to the PC side through the USB interface. The invention further discloses a device for realizing the method of the invention.

A method for automatically identifying an operating system for a USB device begins at initializing the USB device, and recording USB commands sent from the operating system. The USB device determines the operating system as a first operating system when there are two successive USB commands of Get Product String, there is one USB command of Get Vender String, there is no USB command of Reset ahead of a USB command of Set Address, there is no USB command of Get Language ID, or there is no USB command of Set Feature Report. The USB device determines the operating system as a second operating system when there is no USB command of Get Vender String, there are two USB commands of Get Language ID and two USB commands of Get Product String, there is one USB command of Get Device Descriptor following a USB command of Get Product String, or there is one USB command of Set Interface Report.

The present invention includes a system and methods for upgrading software on a mobile terminal. The system includes a network management computer (NMC) adapted to receive a plurality of software upgrades and to transmit one of the plurality of software upgrades to one of a plurality of mobile terminals through a satellite link. The mobile terminal can include an upgradeable component, which in turn includes a detachable device descriptor (DDD) corresponding to operating characteristics of the upgradeable component. According to the present invention, the NMC is adapted to transmit the one of a plurality of software upgrades to the mobile terminal in response to the DDD of the upgradeable component. Methods employing similar features and advantages are also disclosed herein.

The present invention relates to method and apparatus for enabling remote query and control for a device on a home network. A starting control point or a gateway of home network in accordance with the present invention makes out a document of device list that shows a device in association with location information of a presentation page written in a device descriptor received from at least one of devices connected to a home network; and provides the document for a general browser to interpret / process in order that device list of the home network is displayed by the general browser when the general browser is executed.