33 results about "Compact Disc-Read Only Memory" patented technology

The invention discloses a method for quickly deploying in a virtualization environment. The method comprises the following steps of: (1) keeping image copies of idle operating systems in a physical server; (2) transmitting system information necessary for opening a virtual server to a management server, and selecting an initialization script, creating a configuration file and mapping the initialization script and the configuration file into the equipment space of a node server by using the management server; (3) creating a virtual machine by using the management server, virtualizing the image copies of customized operating systems into a disc of the virtual server, and simulating the equipment of the node server into a compact disc read-only memory of the virtual server; (4) starting the virtual server, and running a startup script program with a specified name on the compact disc read-only memory in customized startup scripts of a system; and (5) submitting user name and password information to a foreground user self-service platform by using a resource scheduling system, and allowing a user to decrypt a cipher text and log in by using acquired plain text information. Quick provisioning, quick configuration, and safe, reliable and quick delivery of the virtual machine can be implemented in the virtualization environment.

The invention discloses a virtual machine context setting method in a cloud computing environment, which includes the steps: firstly, making a virtual machine context configuration file into an ISO (isolation) mapping; next, mounting the ISO mapping by taking the ISO mapping as a CDROM (compact disc read-only memory) device of a virtual machine when the virtual machine is started; and then configuring the virtual machine by means of a virtual machine context configuration strategy. The virtual machine context refers to environment configuration information when the user uses the virtual machine, and can comprise network configuration, a user name, a password, a host name and other personalized settings. The virtual machine context configuration strategy refers to that the virtual machine context is configured as needed by adopting a uniform virtual machine context configuration file definition format according to different virtual machine context configuration items. In the method, the virtual machine context is configured by adopting the uniform virtual machine context configuration strategy and can be configured as needed, and a virtual machine context configuration process can be simplified, so that user experience is improved.

A digital media. In one embodiment, the digital media devices includes a storage unit / partition that emulates a Compact Disc-Read Only Memory (CD-ROM), and optionally, a second storage unit / partition that acts as a Read / Write storage device.

A multi-session disc having a digital versatile disc (DVD) application session, a recording / reproducing apparatus, and a recording / reproducing method, are provided. In this multi-session disc, which has a compact disc read only memory (CD-ROM) session, a lead-in area, a lead-out area and a user area, each having a compact disc read only memory (CD-ROM) format, are distinguished and digital versatile disc (DVD) application according to a predetermined file system is recorded in the user area. Therefore, the disc can be used for a music video or a presentation which requires a short reproduction time using a low-priced CD. Also, general CD players can reproduce audio information in an audio CD session, DVD players can reproduce a DVD application in a CD-ROM session, and audio CD players, which support a multi-session CD, can reproduce a DVD application as well as audio information.

The invention relates to a data card starting method and a data card. The method comprises the following steps of: after the data card is powered on, detecting a starting state; when the starting state is a network adapter starting mode, finishing a data card starting flow by using an attention (AT) command generated in the data card; establishing connection with a terminal; and establishing the connection with a network by dialing on the terminal. The network adapter starting mode and a universal serial bus (USB) flash disk starting mode are set for the data card; in the USB flash disk starting mode, only a corresponding module of a USB flash disk is started; and in the network adapter starting mode, the data card can be used for surfing the Internet by AT command interaction in the data card without installing graphical user interface (GUI) software, and a plurality of operating systems are compatible; and when the data card is started in the network adapter starting mode, an Ethernet card is directly enumerated without a switching process from a compact disc read-only memory (CDROM) to a Modem to increase the starting speed of the data card. The simultaneous occurrence of the Ethernet card and the USB flash disk is avoided to ensure that the finite bandwidths of a USB are totally used for data services, thereby effectively increasing the speed of surfing the Internet.

The invention discloses a computer case, which comprises an enclosure, a mainboard bracket, compact disc read-only memory (CD-ROM) support frames, CD-ROM mounting racks, hard disk support frames and hard disk mounting racks. The enclosure consists of a front plate, a bottom plate, a back plate, a top plate, a left side plate and a right side plate, wherein the front plate, the bottom plate and the back plate are integrally molded, and the top plate, the left side plate and the right side plate are integrally molded. The mainboard bracket consists of a mainboard support plate, an expansion card fixing frame, a support plate fixing strap I and a support plate fixing strap II; the CD-ROM support frames are connected with the front plate and the top plate, and can be used for fixedly installing the CD-ROM mounting racks or the hard disk mounting racks; multiple CD-ROM mounting racks and the hard disk mounting racks can be installed in the manner of combination; and the mainboard bracket can be arranged at a corresponding position in the enclosure, so that all computer accessories in the case can be conveniently and flexibly assembled.

A method for judging a host operating system through a USB embedded device comprises the steps as follows: 1), the USB device is taken as a standard USB mass storage device CDROM (compact disc-read only memory) for enumeration, that is, in an enumeration process, the device serves as a mass CDROM device to report the information to a host; 2), the USB device is inserted into the host, whether a seventh byte is 0x08 is judged when the USB receives a first SETUP package enumerated by the host, if yes, the host operating system is an Apple system, and otherwise, a subsequent step 3) is continued; and 3), when the USB receives the SETUP package for configuring the device by the host, whether the host requests a manufacturer character string descriptor is judged, if yes, the host operating system is Linux system, and otherwise, the host operating system is a Windows system.

An application executing method for automatically executing an application stored in a storage unit of an external storage device in an operating system (OS) of a computer host is provided. The method includes dividing the storage unit into a first partition and a second partition; emulating the first partition as compact disc-read only memory (CR-ROM); storing a switch program in the first partition; and storing the application in the second partition. The method also includes providing only the first partition to be accessed by the OS and automatically executing the switch program by the OS to decouple and re-couple the external storage device to the computer host. Additionally, the method further includes providing only the second partition to be accessed by the OS and executing the application when the external storage device is re-coupled to the computer host.

A system and process for the concealment of digital content recorded on a storage medium such as a compact disc (CD) and, more specifically, to an apparatus and method for recording a CD or other storage medium using a recording drive, such as a CD-R or CD-RW drive, that is connected to a computer and that conceals the stored digital content on the medium from being read by a compact disc read-only memory (CD-ROM) or other digital-based reader or computer device, for example as done when performing digital audio extraction (also known as ripping) of musical content from an audio CD. The apparatus and method permit improved control of the usage and copying of published content on physical media by an immediate purchaser while limiting copying and distribution of the content to unauthorized recipients.

The invention provides a method for testing a compact disc read-only memory (CD-ROM). The CD-ROM is arranged on a computer, and a CD is arranged in a tray of the CD-ROM. The method is characterized by comprising the following steps of: 11, automatically opening the tray of the CD-ROM; and 12, automatically closing the tray of the CD-ROM, and if the computer can identify the CD, executing the step 11 again until the step 11 is executed for first preset number of times. By adoption of the method for testing the CD-ROM provided by the invention, the performance such as mechanical structure stability of the CD-ROM can be comprehensively tested, so that various kinds of performance of the CD-ROM can be comprehensively known by test.

A method is described that may be used to generate numerical values indicative of frequencies of selected features in objects. The method includes arranging columns of a matrix in sum total order, wherein the matrix has one or more rows, and multiple intersecting columns. Rows represent objects, and columns represent selected features. Values reside at row-column intersections. A given value at an intersection of a given row and a given column represents the frequency of the selected feature represented by the given column in the object represented by the given row. The matrix is converted to a binary matrix (e.g., comprising binary values "0' and "1'). The columns are divided into multiple segments of equal length. Columns encompassed by each segment are replaced by a single column. Values at intersections of the rows and the single columns are set equal to numerical values indicative of ratios of a total number of one of the binary values (e.g., a total number of "1's) in a portion of the corresponding row encompassed by a segment to a total number of the one of the binary values (e.g. a total number of "1's) in the corresponding row. A computer system embodying the method is described, as is a carrier medium (e.g., a floppy disk or a compact disk read only memory (CD-ROM) disk) including program instructions for carrying out the method.

The invention discloses a method for realizing multi-level storage in optical recording media, the optical recording media and a production method thereof. An odd number of sections of connected subpits and sublands are formed on a pit / land used for storing information, and a first section and a last section of the pit are formed into the subpits / sublands. The same run length obtains a plurality of reading signals to realize the multi-level storage through the following any item or the combination of the items: the lengths of the sublands / subpits obtained by decomposing the pit / land are changed; the positions of the sublands / subpits obtained by decomposing the pit / land are changed; and the number of pit-land combination sections obtained by decomposing the pit / land is changed. The invention also comprises the optical recording media adopting the method and the production method thereof. The method realizes the multi-level storage in the optical recording media without changing the prior writing and reading device of compact disk storage, which remarkably improves the storage capacity of a compact disc-read only memory and the data transmission rate, and keeps the maximum compatibility with the prior compact disk system.

An application executing method for automatically executing an application stored in a storage unit of an external storage device in an operating system (OS) of a computer host is provided. The method includes dividing the storage unit into a first partition and a second partition; emulating the first partition as compact disc-read only memory (CR-ROM); storing a switch program in the first partition; and storing the application in the second partition. The method also includes providing only the first partition to be accessed by the OS and automatically executing the switch program by the OS to decouple and re-couple the external storage device to the computer host. Additionally, the method further includes providing only the second partition to be accessed by the OS and executing the application when the external storage device is re-coupled to the computer host.

The invention discloses a virtual machine context setting method in a cloud computing environment, which includes the steps: firstly, making a virtual machine context configuration file into an ISO (isolation) mapping; next, mounting the ISO mapping by taking the ISO mapping as a CDROM (compact disc read-only memory) device of a virtual machine when the virtual machine is started; and then configuring the virtual machine by means of a virtual machine context configuration strategy. The virtual machine context refers to environment configuration information when the user uses the virtual machine, and can comprise network configuration, a user name, a password, a host name and other personalized settings. The virtual machine context configuration strategy refers to that the virtual machine context is configured as needed by adopting a uniform virtual machine context configuration file definition format according to different virtual machine context configuration items. In the method, the virtual machine context is configured by adopting the uniform virtual machine context configuration strategy and can be configured as needed, and a virtual machine context configuration process can be simplified, so that user experience is improved.

The invention discloses a level-variable multi-level run-length limited modulation encoding method which comprises the following steps of: obtaining an ML-RLL (Multi-Level Run-Length-Limited) encoding code stream x with higher code rate R by using (M, d and k) encoding modes; combining or segmenting run lengths, changing the level M limitation of the specific run length or the d and k constraint conditions of the run lengths in the code stream x and obtaining a VML-RLL (Virtual Multi-Level Run-Length-Limited) code stream y with better channel characteristic. The invention reduces the intersymbol interference influence caused by the multi-level run length while farthest utilizing run-length redundancy. The readout characteristic of the level-variable multi-level run-length limited modulation encoding method is same with an ordinary run-length limited modulated DVD (Digital Versatile Disc), thus a servo control system of read data does not need to change. The signal recognition in the level-variable multi-level run-length limited modulation encoding method can be independently carried out in the two directions of the run length and the level. Under the condition of not changing laser wavelength and optical numerical aperture, the invention can markedly improve the storage capacity and the data transmission rate of a CD-ROM (Compact Disc Read-Only Memory) and keep good compatibility with a CD-ROM system at present.

The invention relates to the technical field of internal and external network data physical isolation devices, in particular to an internal and external network data two-stage physical isolation ferrying device. The internal and external network data two-stage physical isolation ferrying device comprises an internal network server, an internal network compact disc read-only memory, an external network server, an external network recordable compact disc read-only memory, a transit server capable of conducting virus searching and killing operation, a transit compact disc read-only memory, a transit recordable compact disc read-only memory, a compact disc ferrying mechanism and compact disc read-only memory stacking frames capable of allowing hatch openings of two compact disc read-only memories to be placed perpendicularly in an overlapping mode. The compact disc ferrying mechanism comprises a movable arm capable of moving in a plane and in the direction perpendicular to the plane. A compact disc gripping device is fixedly installed at the bottom of the mobile arm. The two compact disc read-only memory stacking frames distributed in a spaced mode laterally are respectively arranged within the stroke range of the compact disc gripping device. According to the internal and external network data two-stage physical isolation ferrying device, attacks and infection of viruses can be effectively avoided, the security level of information transfer of the device is further improved, and the better confidentiality effect is achieved; the compact disc read-only memory stacking frames are additionally arranged, space can be effectively saved, the overall size is reduced, and the device is convenient to place.

The invention relates to a compact disc, a compact disc read-only memory (CD-ROM), a method for using the CD-ROM and a method for producing the compact disc. The compact disc is provided with a ringlike rail, and consists of an external compact disc adjustment region which is close to an outer edge region of the compact disc, wherein the external compact disc adjustment region comprises a standard external compact disc adjustment region and an additional external compact disc adjustment region, the compact disc further includes a compact disc message which indicates the attribute of the external compact disc adjustment region. The invention further relates to a CD-ROM for reading and writing in one compact disc, comprising a compact disc adjustment unit for adjusting the compact disc with one standard external compact disc adjustment region and the additional external compact disc adjustment region once at least, and a compact disc reading unit for reading the message of the compact disc, wherein the adjustment unit can adjust according to the message read from the compact disc. The invention further relates to a method for reading the compact disc and a method for producing the compact disc.

The invention relates to the field of a CD-ROM (Compact Disc Read-Only Memory) driver, and particularly discloses an elastic sheet for a machine core disc-pressing module. The elastic sheet comprises a sheet made of plastic materials; the sheet comprises a bottom wall; a rear mounting part and a front disc-pressing part are arranged on the bottom wall; left and right sides of the rear mounting part are respectively bent upward vertically, thereby forming left and right side bent edges; and the left and right side bent edges are respectively bent outward, thereby forming left and right transversal bent edges. The elastic sheet for the machine core disc-pressing module provided by the invention is made of plastic sheet materials, and friction of a matched plastic gland lug is plastic-plastic friction, thereby being difficult to abrade the plastic gland lug and realizing higher disc-reading reliability.

The invention designs a simulation hardware accelerator based on acceleration hardware, which is constructed by employing an advanced CPU (Central Processing Unit) and concurrency of a large number of logical operation processing unit system structures on a special simulation acceleration processor (VPU) based on a PCIE (Peripheral Component Interface Express) high-speed interconnection bus and combining a concurrent processing hardware and software technology through seamless connection of simulation tool software of an industrial PLI / VPI interface protocol standard and an intra-industry standard. The accelerator comprises the CPU, a main board chipset, a memory, a hard disk, a compact disc read-only memory driver, a power supply, an extended port and a special hardware acceleration card PCIE, wherein the CPU comprises a 4-way CPU; the special hardware acceleration card includes a 4-way special hardware acceleration card, an SOC (System on Chip) calculation array is formed. According to the simulation hardware accelerator designed by the invention, the simulation efficiency is improved, the simulation complexity is reduced, the simulation time is shortened, and a key link is finished for design of an integrated circuit system.

An electronic device comprises a host machine and a compact disc read-only memory (CD-ROM) structure. The CD-ROM structure is disposed in the host machine and used for driving and playing an optical disc. The CD-ROM structure comprises a supporting disc, a supporting disc outlet disposed on a front panel, a CD-ROM protective door and a CD-ROM protective door driving structure. The supporting disc is used for bearing the optical disc, the CD-ROM protective door is used for protecting a CD-ROM in the host machine, and the CD-ROM protective door driving structure is used for driving the CD-ROM protective door and enabling the CD-ROM protective door to be closed or opened. By the adoption of the electronic device, the CD-ROM protective door doesn't need to be turned outward to be concealed during startup, can be automatically closed during turnoff, and is simple in structure and more attractive in appearance.

The invention relates to a compact disc, a compact disc read-only memory (CD-ROM), a method for using the CD-ROM and a method for producing the compact disc. The compact disc is provided with a ringlike rail, and consists of an external compact disc adjustment region which is close to an outer edge region of the compact disc, wherein the external compact disc adjustment region comprises a standard external compact disc adjustment region and an additional external compact disc adjustment region, the compact disc further includes a compact disc message which indicates the attribute of the external compact disc adjustment region. The invention further relates to a CD-ROM for reading and writing in one compact disc, comprising a compact disc adjustment unit for adjusting the compact disc withone standard external compact disc adjustment region and the additional external compact disc adjustment region once at least, and a compact disc reading unit for reading the message of the compact disc, wherein the adjustment unit can adjust according to the message read from the compact disc. The invention further relates to a method for reading the compact disc and a method for producing the compact disc.

The invention relates to a heat dissipation module of a compact disc read-only memory driver core in an auto sound; the heat dissipation module is formed by a sound case; the sound case comprises an upper cover plate, a heat sink, a front cover plate, an upper shell and a lower shell, wherein the upper shell is arranged above the lower shell; the heat sink is connected at rear sides of the upper shell and the lower shell; an air outlet of a fan is arranged in the heat sink; an air vent is arranged in the upper cover plate; an air vent is arranged in a baseplate of the upper shell; and the air vents are communicated with the cavity of the lower shell; a heat insulation baffle is arranged at the back of the upper shell; the heat insulation baffle is vertical to the baseplate and is parallel to the heat sink at an interval; and the heat insulation baffle is arranged behind the air vents. Air vents are respectively arranged at two sides of the upper shell and the lower shell. The heat insulation baffle inhibits the transmission of heat from the heat sink to the driver core; air sucked by the fan forms two flowing air currents between the heat sink and the heat insulation baffle and between the heat insulation baffle and the compact disc read-only memory driver core, thereby further the transmission of heat to the core is blocked; the fan dissipates heat of a main board and simultaneously promotes the heat insulation of the compact disc read-only memory driver core, and the fan is utilized in a maximum degree.

The invention relates to the field of a CD-ROM (Compact Disc Read-Only Memory) driver, and particularly discloses an elastic sheet for a machine core disc-pressing module. The elastic sheet comprises a sheet made of plastic materials; the sheet comprises a bottom wall; a rear mounting part and a front disc-pressing part are arranged on the bottom wall; left and right sides of the rear mounting part are respectively bent upward vertically, thereby forming left and right side bent edges; and the left and right side bent edges are respectively bent outward, thereby forming left and right transversal bent edges. The elastic sheet for the machine core disc-pressing module provided by the invention is made of plastic sheet materials, and friction of a matched plastic gland lug is plastic-plastic friction, thereby being difficult to abrade the plastic gland lug and realizing higher disc-reading reliability.

The invention discloses a method and device for back-upping driving programs and a method and device for recovering driving programs. The method for back-upping the driving programs includes the steps that information of the driving programs in an operating system is obtained; according to the information of all the driving programs, the driving programs which do not belong to the system, and correspond to devices which are not a central processing unit, a compact disc read-only memory and a virtual device serve as candidate backup driving programs; whether device information files corresponding to the candidate backup driving programs exist or not is judged, if the device information files corresponding to the candidate backup driving programs exist, the corresponding device information files and driving program files are back-upped. By means of the method and device for back-upping driving programs and the method and device for recovering driving programs, the memory space occupied by driving backup data is decreased; when the operating system is reinstalled, the required driving programs are installed according to the back-upped driving programs, the trouble that when the operating system is reinstalled, the types of different devices need to be identified, and the driving programs need to be found is avoided, the required time is short, and the efficiency of installing the driving programs is improved.

The invention discloses a portable and stretchable compact disc-read only memory (CD-ROM). The portable and stretchable CD-ROM comprises an inner shell, a middle shell, an outer shell, a base, a fixing cap, a switch, a universal serial bus (USB) interface and an optical disk fixing device. When using the portable and stretchable CD-ROM, a user places an optical disk on the optical disk fixing device, stretches the whole CD-ROM to be in a maximum state through a shift sheet, and then the optical disk can be completely covered; and after the portable and stretchable CD-ROM is connected with a computer through a USB cable, the CD-ROM can be used like a common CD-ROM for read-write operation. When the user needs to take out the optical disk, the user just needs to press the switch, and then a system rapidly stops rotation of the optical disk; and the user contracts the CD-ROM to be in a minimum state through the shift sheet, and then the optical disk can be taken down easily.

The invention discloses a method for recording a CDROM (Compact Disk Read Only Memory) by a mobile phone, comprising the following steps of: (1) making an optical disc ISO (International Standards Organization) image; (2) storing the optical disc image in a mobile phone file system; (3) automatically checking the existence of the optical disc image after re-starting the mobile phone; (4) judging whether the optical disc image exists; if so, performing the step (5), and if not, performing step (7); (5) writing the optical disc image in a CDROM region corresponding to the mobile phone memory; and (6) deleting the optical disc image; (7) finishing recording, wherein the CDROM is available. The method for recording the CDROM by the mobile phone is unnecessary to add the processing flow for the mobile phone CDROM; therefore, the complex operation and flow are avoided, the device investment and human input for production are greatly saved, the spending is saved, and the cost is reduced.

The invention relates to a heat dissipation module of a compact disc read-only memory driver core in an auto sound; the heat dissipation module is formed by a sound case; the sound case comprises an upper cover plate, a heat sink, a front cover plate, an upper shell and a lower shell, wherein the upper shell is arranged above the lower shell; the heat sink is connected at rear sides of the upper shell and the lower shell; an air outlet of a fan is arranged in the heat sink; an air vent is arranged in the upper cover plate; an air vent is arranged in a baseplate of the upper shell; and the air vents are communicated with the cavity of the lower shell; a heat insulation baffle is arranged at the back of the upper shell; the heat insulation baffle is vertical to the baseplate and is parallel to the heat sink at an interval; and the heat insulation baffle is arranged behind the air vents. Air vents are respectively arranged at two sides of the upper shell and the lower shell. The heat insulation baffle inhibits the transmission of heat from the heat sink to the driver core; air sucked by the fan forms two flowing air currents between the heat sink and the heat insulation baffle and between the heat insulation baffle and the compact disc read-only memory driver core, thereby further the transmission of heat to the core is blocked; the fan dissipates heat of a main board and simultaneously promotes the heat insulation of the compact disc read-only memory driver core, and the fan is utilized in a maximum degree.

A compact disc read-only memory fixing device is used for fixing a compact disc read-only memory. The compact disc read-only memory comprises a first side wall and a second side wall which are opposite to each other, wherein two positioning holes are formed in the first side wall at an interval, and a fixing hole is formed in the second side wall. The compact disc read-only memory fixing device comprises a magnetic frame, a fixing part and an elastic part, wherein the magnetic frame comprises a baseboard and two first baffles which protrude from the baseboard and are propped against the first side wall of the compact disc read-only memory, the two first baffles are respectively provided with a positioning part for clamping into the corresponding positioning hole of the compact disc read-only memory, the fixing part can be slidably assembled on the baseboard along the direction of the second side wall of the compact disc read-only memory, a fixed column protrudes from the fixing part, the elastic part is connected between the magnetic frame and the fixed part and drives the fixing part to move towards the compact disc read-only memory, so that the fixed column is clamped into the fixing hole. According to the compact disc read-only memory fixing device, the two positioning holes of the compact disc read-only memory are clamped into the positioning parts of the two baffles, the fixed column of the fixing part is then clamped into the fixing hole of the compact disc read-only memory, so that the compact disc read-only memory can be fixed, and the device is convenient and quick.