Patent application number | Description | Published |
20080244140 | EXTENDER STRIP AND TEST ASSEMBLY FOR TESTING MEMORY CARD OPERATION - A semiconductor device is disclosed including die bond pads which are heightened to allow wire bonding of offset stacked die even in tight offset configurations. After a first die is affixed to a substrate, one or more layers of an electrical conductor may be provided on some or all of the die bond pads of the first substrate to raise the height of the bond pads. The conductive layers may for example be conductive balls deposited on the die bond pads of the first substrate using a known wire bond capillary. Thereafter, a second die may be added, and wire bonding of the first die may be accomplished using a known wire bond capillary mounting a wire bond ball on a raised surface of a first semiconductor die bond pad. | 10-02-2008 |
20080244143 | METHOD OF TESTING MEMORY CARD OPERATION - A semiconductor device is disclosed including die bond pads which are heightened to allow wire bonding of offset stacked die even in tight offset configurations. After a first die is affixed to a substrate, one or more layers of an electrical conductor may be provided on some or all of the die bond pads of the first substrate to raise the height of the bond pads. The conductive layers may for example be conductive balls deposited on the die bond pads of the first substrate using a known wire bond capillary. Thereafter, a second die may be added, and wire bonding of the first die may be accomplished using a known wire bond capillary mounting a wire bond ball on a raised surface of a first semiconductor die bond pad. | 10-02-2008 |
20090006724 | Method of Storing and Accessing Header Data From Memory - Methods of storing and accessing data using a header portion of a file are disclosed. In an embodiment, a method of storing content in a non-volatile memory is disclosed. The method includes reading a content file including media content and including a trailer, storing information related to the trailer together with secure data in a header portion of a file, and storing the file to a storage element of the non-volatile memory or a memory area of a host device coupled to the non-volatile memory device. | 01-01-2009 |
20090006796 | Media Content Processing System and Non-Volatile Memory That Utilizes A Header Portion of a File - A computer readable media storing operational instructions is disclosed. The instructions includes at least one instruction to store data of an encrypted computer readable file that includes a header portion and associated content data into a storage area of a non-volatile memory. The storage area includes a secure memory area to store data from the header portion including at least one encryption ID. The storage area further includes a memory area to store the content data. The header portion further includes trailer data derived from a portion of the content data. The instructions also include at least one instruction to provide data read access to the header portion and to the content data with respect to a host device. | 01-01-2009 |
20090157971 | Integration of Secure Data Transfer Applications for Generic IO Devices - Techniques are presented for sending an application instruction from a hosting digital appliance to a portable medium, where the instruction is structured as one or more units whose size is a first size, or number of bytes. After flushing the contents of a cache, the instruction is written to the cache, where the cache is structured as logical blocks having a size that is a second size that is larger (in terms of number of bytes) than the first size. In writing the instruction (having a command part and, possibly, a data part), the start of the instruction is aligned with one of the logical block boundaries in the cache and the instruction is padded out with dummy data so that it fills an integral number of the cache blocks. When a response from a portable device to an instruction is received at a hosting digital appliance, the cache is similarly flushed prior to receiving the response. The response is then stored to align with a logical block boundary of the cache. | 06-18-2009 |
20090164779 | FILE SYSTEM FILTER AUTHENTICATION - A software entity on a host device attempting to access protected content in a secure memory device must be authenticated using a challenge/response authentication mechanism before the secure file system can be accessed. A file system filter determines whether requested content is protected. If the content is protected, the file system filter provides a challenge to the software entity and generates a file system filter response using the same challenge. The software entity must then send a software entity response using the challenge to the file system filter. If the file system filter determines that the software entity response matches the file system filter response, the software entity is allowed to access the protected content through a secure file system installed on the host device for the memory device. | 06-25-2009 |
20090172235 | MEGASIM CARD ADAPTER - A MegaSIM adapter is disclosed allowing a MegaSIM card to be used in a standard card slot, such as an SD or MicroSD card slot, of a host device. | 07-02-2009 |
20090172279 | System For Accessing A Removable Non-Volatile Memory Card - A non-volatile memory interface device contains first, second, and third communication interfaces configured for first, second, and third protocols, respectively. The device also contains a memory controller that selectively communicates between the first and second communication interfaces, and between the first and third communication interfaces. The device also contains a receptacle that can receive a removable non-volatile memory card and electrically connect the card to the second and third communication interfaces. The first communication interface may be a Universal Serial Bus Interface and may be in communicatively coupled to a USB connector. The second communication interface may be an ISO 7816 interface. A communications adapter is an enclosure containing a receptacle that can receive a non-volatile memory card and a USB connector. The USB connector is communicatively coupled with the non-volatile memory card in the receptacle. The receptacle's second communication interface with the non-volatile memory card is disabled. | 07-02-2009 |
20090172393 | Method And System For Transferring Data And Instructions Through A Host File System - A method for encrypting data may generate an encryption instruction and combine it with a payload of data to form a packet. The packet is associated with a command and passed to a host file system process. The packet, now associated with a second command, is received from the host file system process. The encryption instruction and the payload of data are extracted from the packet. At least a portion of the payload of data is encrypted based on the encryption instruction. A method for decrypting data may receive a packet and generate a decryption instruction. At least a portion of the packet is decrypted using at least the decryption instruction. The second packet comprising the decrypted packet is passed to a host file system process. A third packet comprising the decrypted packet is received from the host file system process. The decrypted packet is extracted from the third packet. | 07-02-2009 |
20090172809 | Method And System For Creating And Accessing A Secure Storage Area In A Non-Volatile Memory Card - In order to create and access a secure storage account in a non-volatile memory device, an account identification value is calculated. A memory identification value is read from a first non-volatile memory device. The memory identification value and the account identification value are transmitted to a second non-volatile memory device, and a calculated credential is received. A command is transmitted to create a secure storage account in the first non-volatile memory device, where the command contains the credential and the account identification value. To access the account, a sequence is transmitted, containing the account identification value and a value based on the credential. A secure storage system contains a first non-volatile memory device that stores a memory identification value and contains a secure partition accessible using a credential, a second non-volatile memory device that can compute the credential, and a host adapted to create and access the secure partition. | 07-02-2009 |
20090182919 | Media Card Command Pass Through Methods - Methods for transmitting application specific or extended commands between a host and a memory card are disclosed. Commands for an extended card protocol are embedded in messages, along with a marker, in the data or command portion of a base card transmission protocol that is used to communicate between the host and the memory card. This allows for the transmission of application specific commands that lack a corresponding command in the base card protocol. The method can be implemented on the host side at the device driver level or the file level. In order to implement a read command in the extended card protocol, a write command in the base card protocol with an encapsulated read command in the extended protocol is first sent to a logical address, followed by a read command to the same logical address. Message set identifiers associate embedded commands and data received in separate transmissions. | 07-16-2009 |
20090259771 | Identification of memory cards by host - A host connected to two or more memory cards includes an interface manager that assigns card identifiers to memory cards according to the types of memory cards present. The interface manager also assigns volume identifiers to partitions within memory cards. Applications use a pathname that includes a card identifier and a volume identifier to access a partition and files. | 10-15-2009 |
20090293117 | AUTHENTICATION FOR ACCESS TO SOFTWARE DEVELOPMENT KIT FOR A PERIPHERAL DEVICE - A set of code for a peripheral device is installed on a host device. The set of code is used to control access to the peripheral device from the host device. The set of code also contains one or more subsets of code that can be used by software entities on the host device for access to the peripheral device. A software entity on a host device must be successfully authenticated with the set of code installed on the host device. Once the software entity is successfully authenticated, the set of code will provide access to the one or more subsets of code specific to the software entity. The one or more subsets of code can be used by the software entity to access the peripheral device. | 11-26-2009 |
20090293118 | SYSTEMS FOR AUTHENTICATION FOR ACCESS TO SOFTWARE DEVELOPMENT KIT FOR A PERIPHERAL DEVICE - A set of code for a peripheral device is installed on a host device. The set of code is used to control access to the peripheral device from the host device. The set of code also contains one or more subsets of code that can be used by software entities on the host device for access to the peripheral device. A software entity on a host device must be successfully authenticated with the set of code installed on the host device. Once the software entity is successfully authenticated, the set of code will provide access to the one or more subsets of code specific to the software entity. The one or more subsets of code can be used by the software entity to access the peripheral device. | 11-26-2009 |
20100048169 | Memory device upgrade - Technology for replacing a first storage unit operatively coupled to a device is provided. Content of the first storage unit is sent to a new storage unit that serves as the replacement of the first storage unit. In one embodiment, the content is first sent to a trusted third-party server and then transferred from the server to the new storage unit. A portion of the content on the new storage unit is adjusted in one embodiment to maintain content security features that were implemented in the first storage unit. The upgrading can be performed under the control of a software entity that is installed on the device. In various embodiments, the first storage unit may be bound to a third storage unit prior to the upgrade process. In such cases, the process can include measures to bind the new storage unit to the third storage unit. | 02-25-2010 |
20100169222 | Method for Secure Storage and Delivery of Media Content - The memory device contains control structures that allow media content to be stored securely and distributed in a manner envisioned by the content owner, or service providers involved in the distribution. A wide variety of different avenues become available for distributing media content using such memory devices, such as where the devices contain one or more of the following: abridged preview media content, encrypted unabridged media content, prepaid content, rights and/or rules governing access to such content. The memory device has a type of control structures that enable a service provider (who can also be the content owner) to create a secure environment for media content distribution where end users and terminals register with the service provider, and gain access to the content in a manner controlled by the service provider. The various components to be loaded (e.g. abridged preview media content, encrypted unabridged media content, prepaid content, rights and/or rules governing access to such content) may be generated and loaded in a secure and efficient manner. | 07-01-2010 |
20100191955 | SYSTEM AND METHOD FOR DISTRIBUTING DIGITAL CONTENT - A method for distributing digital content is disclosed. The method includes receiving, at an operator of a wireless communications network, a request for digital content from a first mobile device. The method further includes determining, at the operator, that a second mobile device has the digital content. The method further includes receiving the digital content from the second mobile device at the operator of the wireless communications network and sending a message including a pointer related to the digital content to the first mobile device | 07-29-2010 |
20100191962 | FILE SYSTEM FILTER AUTHENTICATION - A method of accessing content includes installing a file system filter for a secure removable memory device on a host device. A challenge is sent from the file system filter to a software entity on the host device, and a software entity response is received at the file system filter in response to the challenge. A file system filter response is calculated at the file system filter using the challenge, and access to first content on the secure removable memory device is provided if the software entity response matches the file system filter response. | 07-29-2010 |
20100218001 | Method for Managing Keys and/or Rights Objects - One or more rights objects (RO) files may be used for storing RO's preferably in the protected area available only to authenticated users. A RO navigation file is stored preferably in an unprotected public area containing status bits, where each status bit identifies whether a location in a RO file contains a valid RO or not. Preferably, there is a one-to-one correspondence between the location for a RO in a RO file and a location in the RO navigation file for the status bit which identifies whether its corresponding location in the RO file contains a valid RO or not. Whether a particular location in a RO file contains a valid RO or not can be found by checking its corresponding status bit in the RO navigation file. By finding out whether a particular location in a RO file contains a valid RO or not in this manner, it is possible to delete ROs without having to go through an authentication process. The process of finding an empty slot in the RO file for storing a new RO is also simplified. This greatly increases the efficiency of RO management. A similar system may be used for management of content encryption/encryption keys for protecting content files. | 08-26-2010 |
20120066412 | MEDIA CARD COMMAND PASS THROUGH METHODS - Methods for transmitting application specific or extended commands between a host and a memory card are disclosed. Commands for an extended card protocol are embedded in messages, along with a marker, in the data or command portion of a base card transmission protocol that is used to communicate between the host and the memory card. This allows for the transmission of application specific commands that lack a corresponding command in the base card protocol. The method can be implemented on the host side at the device driver level or the file level. In order to implement a read command in the extended card protocol, a write command in the base card protocol with an encapsulated read command in the extended protocol is first sent to a logical address, followed by a read command to the same logical address. Message set identifiers associate embedded commands and data received in separate transmissions. | 03-15-2012 |
20120151576 | METHOD AND SYSTEM FOR CREATING AND ACCESSING A SECURE STORAGE AREA IN A NON-VOLATILE MEMORY CARD - In order to create and access a secure storage account in a non-volatile memory device, an account identification value is calculated. A memory identification value is read from a first non-volatile memory device. The memory identification value and the account identification value are transmitted to a second non-volatile memory device, and a calculated credential is received. A command is transmitted to create a secure storage account in the first non-volatile memory device, where the command contains the credential and the account identification value. To access the account, a sequence is transmitted, containing the account identification value and a value based on the credential. A secure storage system contains a first non-volatile memory device that stores a memory identification value and contains a secure partition accessible using a credential, a second non-volatile memory device that can compute the credential, and a host adapted to create and access the secure partition. | 06-14-2012 |
20120159644 | Method for Managing Keys and/or Rights Objects - One or more rights objects (RO) files may be used for storing RO's preferably in the protected area available only to authenticated users. A RO navigation file is stored preferably in an unprotected public area containing status bits, where each status bit identifies whether a location in a RO file contains a valid RO or not. Preferably, there is a one-to-one correspondence between the location for a RO in a RO file and a location in the RO navigation file for the status bit which identifies whether its corresponding location in the RO file contains a valid RO or not. Whether a particular location in a RO file contains a valid RO or not can be found by checking its corresponding status bit in the RO navigation file. By finding out whether a particular location in a RO file contains a valid RO or not in this manner, it is possible to delete ROs without having to go through an authentication process. The process of finding an empty slot in the RO file for storing a new RO is also simplified. This greatly increases the efficiency of RO management. A similar system may be used for management of content encryption/encryption keys for protecting content files. | 06-21-2012 |
20140359285 | METHOD AND SYSTEM FOR TRANSFERRING DATA INSTRUCTIONS THROUGH A HOST FILE SYSTEM - A method for encrypting data may generate an encryption instruction and combine it with a payload of data to form a packet. The packet is associated with a command and passed to a host file system process. The packet, now associated with a second command, is received from the host file system process. The encryption instruction and the payload of data are extracted from the packet. At least a portion of the payload of data is encrypted based on the encryption instruction. A method for decrypting data may receive a packet and generate a decryption instruction. At least a portion of the packet is decrypted using at least the decryption instruction. The second packet comprising the decrypted packet is passed to a host file system process. A third packet comprising the decrypted packet is received from the host file system process. The decrypted packet is extracted from the third packet. | 12-04-2014 |