Patent application number | Description | Published |
20080234582 | PLAQUE CHARACTERIZATION USING MULTIPLE INTRAVASCULAR ULTRASOUND DATASETS HAVING DISTINCT FILTER BANDS - A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image. | 09-25-2008 |
20100331695 | Plaque Characterization Using Multiple Intravascular Ultrasound Datasets Having Distinct Filter Bands - A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image. | 12-30-2010 |
20130123631 | System and Method of Characterizing Vascular Tissue - A system and method is provided for using backscattered data and known parameters to characterize vascular tissue. IVUS data is transmitted to a computing device and used to create an IVUS image. The blood vessel is then cross-sectioned and used to identify its tissue type and to create a corresponding image (i.e., histology image). A region of interest (ROI) is then identified on the histology image. The computing device identifies a corresponding region on the IVUS image. After the corresponding region is identified, the IVUS data that corresponds to this region is identified. Signal processing is then performed and at least one parameter is identified. The identified parameter and the tissue type is stored in a database. In another embodiment of the present invention, the characterization application is adapted to use the parameters stored in the database to identify a tissue type or a characterization thereof. | 05-16-2013 |
20130245446 | Plaque Characterization Using Multiple Intravascular Ultrasound Datasets Having Distinct Filter Bands - A system and method are disclosed that facilitate generating visual representations of characterized tissue based upon ultrasound echo information obtained from a portion of an imaged body. The system includes a first filter having a first filter band that is applied to a near range portion of the ultrasound echo information to render near range filtered echo information. A second filter, having a second filter band that covers a frequency range of the first filter band, is applied to a far range portion of the ultrasound echo information to render far range filtered echo information. The system furthermore includes a set of characterization criteria that are applied to the near and far range filtered echo information. The characterized near and far range image data are thereafter combined into a single tissue-characterization image. | 09-19-2013 |
Patent application number | Description | Published |
20080287795 | System And Method For Identifying A Vascular Border - A system and method is provided for using a first vascular image, or more particularly a plurality of control points located thereon, to identify a border on a second vascular image. Embodiments of the present invention operate in accordance with an intra-vascular ultrasound (IVUS) device and a computing device electrically connected thereto. Specifically, in one embodiment of the present invention, an-IVUS console is electrically connected to a computing device and adapted to acquire IVUS data. The IVUS data (or multiple sets thereof) is then provided to (or acquired by) the computing device. In one embodiment of the present invention, the computing device includes a plurality of applications operating thereon—i.e., a border-detection application, an extrapolation application, and an active-contour application. These applications are used to (i) identify a border and control points on a first IVUS image (i.e., any IVUS image), (ii) extrapolate the control points to a second IVUS image (i.e., another IVUS image), (iii) identify a border on the second IVUS image, and (iv) adjust the border on the second IVUS image in accordance with at least one factor. In one embodiment of the present invention, the at least one factor is selected from a group consisting of gradient factor, continuity factor, and curvature factor. | 11-20-2008 |
20110087101 | System and Method for Determining a Transfer Function - A system and method is provided for using ultrasound data backscattered from vascular tissue to estimate the transfer function of a catheter (including components attached thereto—e.g., IVUS console, transducer, etc.). Specifically, in accordance with a first embodiment of the present invention, a computing device is electrically connected to a catheter and used to acquire RF backscattered data from a vascular structure (e.g., a blood vessel, etc.). The backscattered ultrasound data is then used, together with an algorithm, to estimate the transfer function. The transfer function can then be used (at least in a preferred embodiment) to calculate response data for the vascular tissue (i.e., the tissue component of the backscattered ultrasound data). In a second embodiment of the present invention, an IVUS console is electrically connected to a catheter and a computing device and is used to acquire RF backscattered data from a vascular structure. The backscattered data is then transmitted to the computing device, where it is used to estimate the catheter's transfer function and to calculate response data for the vascular tissue. The response data and histology data are then used to characterize at least a portion of the vascular tissue (e.g., identify tissue type, etc.). | 04-14-2011 |
20110208017 | System and method of aquiring blood-vessel data - A system and method is provided for substantially synchronizing the acquisition of blood-vessel data to an identifiable portion of heartbeat data. Specifically, a data-gathering device is adapted to acquire heartbeat data and blood-vessel data from a heart-monitoring device and a data-gathering probe, respectively. In a preferred embodiment of the present invention, the blood-vessel data is acquired during a cyclical portion of the heartbeat data. By identifying a cyclical (or commonly reoccurring) portion of the heartbeat data and acquiring blood-vessel data during this cyclical portion (or during an interval that substantially corresponds thereto), the blood vessel can be analyzed as if it were standing still—i.e., not expanding and relaxing. In one embodiment of the present invention, the heart-monitoring device includes an EKG device, the data-gathering device includes an intra-vascular ultrasound (IVUS) device and a computing device, and the data-gathering probe includes at least one transducer. In another embodiment of the present invention, the data-gathering system further includes a retraction device adapted to move the data-gathering probe though a blood vessel at a substantially steady speed. | 08-25-2011 |
20110235892 | System and Method for Identifying a Vascular Border - A system and method is provided for using a first vascular image, or more particularly a plurality of control points located thereon, to identify a border on a second vascular image. Embodiments of the present invention operate in accordance with an intra-vascular ultrasound (IVUS) device and a computing device electrically connected thereto. Specifically, in one embodiment of the present invention, an IVUS console is electrically connected to a computing device and adapted to acquire IVUS data. The IVUS data (or multiple sets thereof) is then provided to (or acquired by) the computing device. In one embodiment of the present invention, the computing device includes a plurality of applications operating thereon—i.e., a border-detection application, an extrapolation application, and an active-contour application. These applications are used to (i) identify a border and control points on a first IVUS image (i.e., any IVUS image), (ii) extrapolate the control points to a second IVUS image (i.e., another IVUS image), (iii) identify a border on the second IVUS image, and (iv) adjust the border on the second IVUS image in accordance with at least one factor. In one embodiment of the present invention, the at least one factor is selected from a group consisting of gradient factor, continuity factor, and curvature factor. | 09-29-2011 |
20130028497 | System and Method for Identifying a Vascular Border - A system and method are provided for using a first vascular image, or more particularly a plurality of control points located thereon, to identify a border on a second vascular image. Embodiments of the present invention operate in accordance with an intra-vascular ultrasound (IVUS) device and a computing device electrically connected thereto. In one embodiment, the computing device includes a plurality of applications operating thereon that are used to (I) identify a border and control points on a first IVUS image (i.e., any IVUS image), (ii) extrapolate the control points to a second IVUS image (i.e., another IVUS image), (iii) identify a border on the second IVUS image, and (iv) adjust the border on the second IVUS image in accordance with at least one factor. | 01-31-2013 |
20140012134 | System and Method for Characterizing Vascular Tissue - A system and method is provided for using ultrasound data backscattered from vascular tissue to estimate the transfer function of a catheter and/or substantially synchronizing the acquisition of blood-vessel data to an identifiable portion of heartbeat data. The backscattered ultrasound data is used, together with an algorithm, to estimate at least one transfer function. The transfer function(s) can then be used (at least in a preferred embodiment) to calculate response data for the vascular tissue (i.e., the tissue component of the backscattered ultrasound data). The response data and histology data are then used to characterize at least a portion of the vascular tissue (e.g., identify tissue type, etc.). In some embodiments, the backscattered data is acquired during a cyclical portion of the heartbeat data so that the blood vessel can be analyzed or imaged as if it were standing still, or not expanding and relaxing. | 01-09-2014 |
Patent application number | Description | Published |
20090007215 | Method and Apparatus for Delivering Programming Code Objects to Set-Top Terminals and the Like - A set top box is provided that includes an RF front-end for receiving programming content over a distribution communication network. A processor is operatively associated with the RF front-end and a storage device is operatively associated with the processor. An interface is provided for establishing communication with an external device. In response to a signal received from the distribution network over the RF front-front identifying at least one programming object to be downloaded thereto, the processor is configured to locate and receive the programming object from the external device through the interface. | 01-01-2009 |
20090202075 | CONDITIONAL ACCESS SYSTEM EMPLOYING CONSTRAINED ENCRYPTION KEYS - A method and apparatus is provided for decrypting an encrypted transport stream, comprising. The method includes receiving the encrypted transport stream over a content delivery network. The encrypted transport stream is encrypted using a first control word that serves as an encryption/decryption key. A variable control word is received over the content delivery network. The variable control word is mathematically constrained to create a second control word. The encrypted transport stream is decrypted using the second control word if the second control word is the same as the first control word. | 08-13-2009 |
20120060034 | DIGITAL INFORMATION STREAM COMMUNICATION SYSTEM AND METHOD - A digital information stream communication (DISC) system within a first conditional access system (CAS) is disclosed. The DISC system communicates information from a digital information stream (DIS) having DIS attributes for accessibility using the first CAS or associated with a digital media (DM) content in the DIS. The DISC system includes a monitoring module configured to receive the DIS and identify one or more of the DIS attributes for accessibility using the first CAS. The DISC system also includes a processing module configured to identify one or more of the DIS attributes associated with the DM content and analyze the DIS attributes. It does this to determine whether to send DIS data from the DIS to a second CAS based upon the DIS data being included in the DIS attributes. The DISC system also includes a processor configured to operate the monitoring module and the processing module. | 03-08-2012 |
20130132986 | METHOD AND APPARATUS FOR NETWORK BASED ADAPTIVE STREAMING - A method and apparatus for streaming Over-the-Top (OTT) content on a network to subscribers is described. A digital video transport stream of an item of the OTT content is obtained via unicast streaming methods of a resolution and bit rate selected from an available set of different resolutions and bit rates for the digital video transport stream. The digital video transport stream of the selected resolution and bit rate is transmitted in the form of an IP multicast over the network to subscribers. Bandwidth utilization of the network is monitored so that switching of the bit rate to a different bit rate for the digital video transport stream can be controlled to provide adaptive rate control of the IP multicast. | 05-23-2013 |
20130145409 | SYSTEM AND METHOD FOR MEDIA CONTENT DELIVER - A system and method for media content delivery is described. One implementation of the system and method allows for interactive services to be ordered and delivered to a limited-capability set-top box. A gateway unit receives interactive service commands from the remote control of the set-top box through one communication path (such as a wireless path) and relays those commands to a media content network. The media content network then delivers media content in response to the interactive service commands through another communication path (such as a wired path). | 06-06-2013 |
20130205357 | IP MULTICAST MANAGEMENT AND SERVICE PROVISION SYSTEM AND METHOD | 08-08-2013 |
20140245341 | Extending Blackout Control - Systems and methods for blackout management in media distribution systems may include a central data center in a service provider's domain. The central data server may coordinate with a blackout manager that implements control features for blackout. In contrast to (or to supplement) blackout control solutions that require integrated receiver decoders (IRD)s to be physically installed at each of the regional headends in the service provider network, the blackout manager may provide three functions: 1) a Virtual IRD (VIRD) function 2) access control functions via access control component, and 3) VIRD-to-EndPoint mapping function in the linkage manager. | 08-28-2014 |
20140281537 | PROTECTION OF CONTROL WORDS EMPLOYED BY CONDITIONAL ACCESS SYSTEMS - In accordance with a method for communicating a control word (CW) from a client such as an encryptor to a server such as the entitlement control message generator (ECMG) of a conditional access system (CAS), communication is established between the client and server over a secure connection. A control word to be encrypted is received by the client and encrypted using a first and second key. The first key is a global secret key (GSK) that is known to the client and the server without being communicated over the secure connection. The second key is a control word encryption key (CWEK) that is derived from a locally generated client nonce (CN) and a server nonce (SN) obtained from the server over the secure connection. The encrypted control word (ECW) is sent to the server over the secure connection. | 09-18-2014 |
20140282682 | METHOD FOR CONTROLLING AND IMPLEMENTING BLACKOUT IN IPTV NETWORKS - A media content broadcast blackout control method, comprising receiving a retune message requesting a blackout of a primary media content broadcast in specific regions, generating a playlist for each region comprising a content key wrapped in a region-specific media key, wherein the content key in the playlists for regions that are not subject to the blackout is configured to access the primary media content broadcast, and the content key in the playlists for regions that are subject to the blackout is configured to access an alternate media content broadcast, providing the playlists to client devices within each region, providing the primary media content broadcast to client devices whose region-specific media key unwraps the content key for the primary media content broadcast, and providing the alternate media content broadcast to client devices whose region-specific media key unwraps the content key for the alternate primary media content broadcast. | 09-18-2014 |
20150121417 | Mediaword Compression for Network Digital Media Recorder Applications - In response to receiving from a subscriber both a request to record content and a unique requester key, a network DVR identifies an asset associated with the request. The network DVR segments the asset in to a series of segments, assigns a mediaword to each segment for compression, encrypts each of the segments using an encryption key, and records the encrypted asset segments in an encrypted dictionary storage as definitions, i.e., dictionary entries. The encrypted key and the mediaword are forwarded to a requester handler flow in the network DVR that generates requester-specific encrypted copies using the requester key received from the subscriber. The mediaword, encrypted encryption key, and the encrypted asset segments are stored in and retrievable for the corresponding requester. | 04-30-2015 |
20160088331 | METHOD AND APPARATUS FOR NETWORK BASED ADAPTIVE STREAMING - A method and apparatus for streaming Over-the-Top (OTT) content on a network to subscribers is described. A digital video transport stream of an item of the OTT content is obtained via unicast streaming methods of a resolution and bit rate selected from an available set of different resolutions and bit rates for the digital video transport stream. The digital video transport stream of the selected resolution and bit rate is transmitted in the form of an IP multicast over the network to subscribers. Bandwidth utilization of the network is monitored so that switching of the bit rate to a different bit rate for the digital video transport stream can be controlled to provide adaptive rate control of the IP multicast. | 03-24-2016 |
Patent application number | Description | Published |
20120329731 | THERAPEUTIC METHODS, COMPOSITIONS, AND COMPOUNDS - In one embodiment the invention provides a method of combating cyanide poisoning, which comprises administering to a subject a compound capable of releasing 3-mercapto-pyruvate in vivo. In other embodiments the invention also provides pharmaceutical compositions comprising a compound capable of releasing 3-mercaptopyruvate in vivo, as well as novel compounds that are capable of releasing 3-mercaptopyruvate in vivo. | 12-27-2012 |
20140121375 | METHOD FOR PREPARATION OF 5-SUBSTITUTED PYRIMIDINES - The present invention provides a method to prepare 5-substituted pyrimidines by reacting a 5-acylpyrimidine with a suitable nucleophile to afford a 5-methanolpyrimidine, such as flurprimidol. | 05-01-2014 |
20140154192 | GLUTATHIONE ANALOGS AND USES THEREOF - The invention provides compounds of formula (I): (I) or salts thereof, wherein R1, R2, R3 Z, and X have any of the values defined herein, as well as compositions comprising such compounds. The compounds and compositions are useful for treating neurodegenerative disorders. | 06-05-2014 |