US20010005886A1 - Method and apparatus for feature configuration in remotely located ultrasound imaging system - Google Patents

Method and apparatus for feature configuration in remotely located ultrasound imaging system Download PDF

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Publication number
US20010005886A1
US20010005886A1 US09775519 US77551901A US2001005886A1 US 20010005886 A1 US20010005886 A1 US 20010005886A1 US 09775519 US09775519 US 09775519 US 77551901 A US77551901 A US 77551901A US 2001005886 A1 US2001005886 A1 US 2001005886A1
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Prior art keywords
system
key
feature
encrypted
identifier
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US6418225B2 (en )
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Gregory Stratton
Charles Brackett
Chandler Johnson
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General Electric Co
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General Electric Co
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/89Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/899Combination of imaging systems with ancillary equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/088Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging

Abstract

A method and apparatus for configuring an ultrasound imaging system at a remote location by obtaining an encrypted feature key from a central location (e.g., via telephone) and then inputting that feature key into the ultrasound imaging system using an operator interface (e.g., a keyboard). To validate the feature key, the ultrasound imaging system decrypts the encrypted data and then compares the decrypted data to validation data pre-stored in the system. If the decrypted data matches the validation data, then the optional feature identified by the feature key will be enabled each time the system is booted or initialized. Optionally, an expiration date can be associated with the activated option, after which date the feature will be disabled when the system is initialized. Similarly, an activated optional feature can be disabled at a remote location by the input of an encrypted key obtained from a central location.

Description

    FIELD OF THE INVENTION
  • [0001]
    This invention generally relates to systems for ultrasound imaging of the human anatomy for the purpose of medical diagnosis. In particular, the invention relates to a method for configuring a remotely located ultrasound imaging system to add or delete features.
  • BACKGROUND OF THE INVENTION
  • [0002]
    Conventional ultrasound scanners create two-dimensional B-mode images of tissue in which the brightness of a pixel is based on the intensity of the echo return. The basic signal processing chain in the conventional B mode is depicted in FIG. 1. An ultrasound transducer array 2 is activated to transmit an acoustic burst along a scan line. The return RF signals are detected by the transducer elements and then formed into a receive beam by the beamformer 4. The beamformer output data (I/Q or RF) for each scan line is passed through a B-mode processing chain 6 which includes demodulation, equalization filtering, envelope detection and logarithmic compression. Depending on the scan geometry, up to a few hundred vectors may be used to form a single acoustic image frame. To smooth the temporal transition from one acoustic frame to the next, some acoustic frame averaging 8 may be performed before scan conversion.
  • [0003]
    In general, the log-compressed display data is converted by the scan converter 10 into X-Y format for video display. On some systems, frame averaging may be performed on the X-Y data (indicated by dashed block 12) rather than the acoustic frames before scan conversion, and sometimes duplicate video frames may be inserted between acoustic frames in order to achieve a given video display frame rate. The scan-converted frames are passed to a video processor 14, which maps the video data to a gray-scale mapping for video display. The gray-scale image frames are then sent to a video monitor 18 for display.
  • [0004]
    System control is centered in a host computer 20, which accepts operator inputs through an operator interface 22 (e.g., a keyboard) and in turn controls the various subsystems. (In FIG. 1, only the image data transfer paths are depicted.) During B-mode imaging, a long sequence of the most recent images are stored and continuously updated automatically in a cine memory 16. Some systems are designed to save the R-θ acoustic images (this data path is indicated by the dashed line in FIG. 1), while other systems store the X-Y video images. The image loop stored in cine memory 16 can be reviewed via track-ball control, and a section of the image loop can be selected for hard disk storage.
  • [0005]
    For an ultrasound imaging system which has been configured with a free-hand three-dimensional imaging capability, the selected image sequence stored in cine memory 16 is transferred to the host computer 20 for three-dimensional reconstruction. The result is written back into another portion of the cine memory, from where it is sent to the display system 18 via video processor 14.
  • [0006]
    From the standpoint of the vendor of the ultrasound imaging system, it is desirable to sell or lease systems having built-in optional features which can be activated at a location remote from a central billing station. For example, the capability of free-hand three-dimensional imaging can be an optional feature which must be purchased from the system vendor. To ensure that the system user is charged for the use of such optional features, it is known to provide means for blocking activation of optional features unless authorization is obtained from the manufacturer. Authorization can also be given to allow for use of an optional feature free of charge for a predetermined trial period. In one conventional ultrasound system, this is accomplished by delivery of an authorized feature activation disk, which is inserted into a slot in the system. The disk has validation information and feature information stored thereon. The system compares the validation information with a unique validation standard pre-stored in the system memory. If the validation data matches the unique pre-stored standard, the feature information stored on the disk is incorporated in the system configuration database. Thereafter and until the expiration date, whenever the system is initialized, optional feature or features represented by the feature information of the disk will be enabled.
  • [0007]
    However, there is a need for a method of configuring an ultrasound imaging system at a remote location without physically transferring an authorization disk or card from the central location to the remote location. In particular, there is a need for a method of system configuration which can be carried out remotely while avoiding the delays inherent in the shipment or delivery of a disk or card from a central location.
  • SUMMARY OF THE INVENTION
  • [0008]
    The present invention is a method and apparatus for configuring an ultrasound imaging system at a remote location by obtaining an encrypted feature key from a central location (e.g., via telephone) and then inputting that feature key into the ultrasound imaging system using an operator interface (e.g., a keyboard). To validate the feature key, the system decrypts the encrypted data and then compares the decrypted data to validation data pre-stored in the system. If the decrypted data matches the validation data, then the optional feature identified by the feature key will be enabled each time the system is booted or initialized. Optionally, an expiration date can be associated with the activated option, after which date the feature will be disabled when the system is initialized.
  • [0009]
    In accordance with the broad scope of the invention, an activated optional feature can be disabled at a remote location by the input of an encrypted key obtained from a central location. The term “feature key” shall be used hereinafter to mean any key for activating or deactivating an optional feature.
  • [0010]
    To enable an optional feature on the ultrasound system in accordance with the preferred embodiment of the invention, an authorized service representative or other user at the remote location opens a communication link with a central location. In order to obtain a feature key for enabling the feature, the user must identify the option desired and provide the machine identification number and the option expiration date to the central location. Service personnel at the central location then run a key maker application using the given data. The key maker application employs a value extractor to organize the inputted data into vectors, and an encryption engine to transform those vectors (by multiplying each vector with a non-singular matrix) into an encrypted feature key comprising a string of numeric characters. The encrypted feature key is then communicated to the user at the remote location.
  • [0011]
    To facilitate entry of the encrypted feature activation key into the system, first the user must enter a predetermined sequence of alphanumeric characters representing an enter key entry mode command. The characters can be entered, for example, by depressing keys located either on a front panel of the system or on a modular keyboard connected to the system. The enter key entry mode command places the machine is a suspended state (i.e., the feature key entry mode) in which the next data inputted into the system is processed as a feature key. The user then enters the string of numeric characters representing the encrypted feature key into the system.
  • [0012]
    The ultrasound imaging system at the remote location is programmed with an encryption engine identical to that used at the central location to generate the encrypted feature key. After reading the encrypted feature key (i.e., storing the inputted numeric characters in a buffer), the system extracts the values representing the key identifier, machine identification number, option and option expiration date. The extracted values are then organized into vectors, which vectors are input into the encryption engine. The encryption engine de-crypts the encrypted feature key by linear transformation of the inputted vectors using the matrix which results when the non-singular matrix used during the encryption process is inverted. The decrypted vectors representing the key identifier and machine identification number are then validated. If the key identifier and machine identification number are both valid, then the decrypted option and expiration date vectors are input to an option activator, which copies the option and expiration date data into the options structure within the system configuration database. If the expiration date is valid, the feature identified by the installed option data will be activated each time that the system is booted, until the expiration date.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0013]
    [0013]FIG. 1 is a block diagram showing the major functional subsystems within a conventional real-time ultrasound imaging system.
  • [0014]
    [0014]FIG. 2 is a block diagram showing a system for configuring an ultrasound imaging system at a remote location by obtaining an encrypted feature key from a central location via a communications link in accordance with one preferred embodiment of the invention.
  • [0015]
    [0015]FIG. 3 is a flowchart showing the steps of a method for configuring an ultrasound imaging system in accordance with the preferred embodiment of the invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • [0016]
    [0016]FIG. 2 depicts the overall system for feature configuration of an ultrasound imaging system at a remote location 24 using an encrypted feature key transmitted from a central location 26. Although FIG. 2 shows only the host computer 20 and the operator interface 22 of the ultrasound imaging system, it will be appreciated that the ultrasound imaging system at remote location 24 may also incorporate the components depicted in FIG. 1 or components of a different type of ultrasound imaging system.
  • [0017]
    The remote location 24 is also provided with a communications module 28 which can be connected to a communications module 30 at the central location 26 by opening a communications link 29. For example, the communications link can be a telephone line. In accordance with the preferred embodiment of the invention, to enable an optional feature on the ultrasound imaging system, a user at the remote location 24 must obtain an encrypted feature key from the central location. To accomplish this, the user must first open communications link 29 and then transmit numeric data representing the option to be activated, the expiration date of that option and a machine identification number (i.e., serial number) which is unique to the system being configured.
  • [0018]
    After this information has been transmitted, service personnel at the central location input the transmitted data into an operator interface 32 which interfaces with a central computer 35. The data is input into the operator interface as a string of numeric characters. The output of operator interface 32 is input to a value extractor 34 which is incorporated in central computer 35. Initially, the string of numeric characters is stored in a buffer incorporated in the value extractor 34. The central computer also adds a key identifier to the string of numeric characters. The key identifier is a special code used to identify a valid feature key. Optionally, a limit can be placed on the duration of option activation as represented by the expiration date, e.g., the central computer may be programmed to reject any request for a feature activation key made more than 30 days prior to the expiration date. The value extractor 34 then organizes the string of numeric characters into a series of vectors in Rx space, where x is the dimension of a non-singular matrix used in the encryption process.
  • [0019]
    The central computer 35 further comprises an encryption engine 36 which receives the series of vectors output by the value extractor 34. To encrypt these vectors, the encryption engine 36 utilizes a non-singular encryption matrix A. The matrix A is non-singular to allow for decryption using the inverted matrix A−1. In accordance with the preferred embodiment of the invention, the non-singular encryption matrix is not pre-stored, but rather is generated by the central computer from pre-stored matrix precursor data. As a result, the encryption matrix cannot be simply addressed and read out of memory by persons having access to the central computer, thus providing an added measure of security.
  • [0020]
    After the encryption matrix A has been generated, each vector V1 is encrypted by performing the linear transformation L(V1)=AV1. The resulting encrypted vectors form a string of numeric characters which constitute the encrypted feature key. The service personnel at the central location 26 then transmit the encrypted feature key to the remote location 24 via the communications link 29 or via a different communications link.
  • [0021]
    Upon receipt of the encrypted feature key, the user at the remote location places the ultrasound imaging system in a feature key entry mode and then inputs the encrypted feature key into the host computer 20 via the operator interface 22. The encrypted key is stored in a buffer incorporated in the value extractor 38. The value extractor 38 parses the string of numeric characters constituting the encrypted key into the respective values: key identifier, machine identification number, option and expiration date, and then organizes those values into respective encrypted vectors X1. The encrypted vectors are then decrypted by an encryption engine 40 using matrix A−1, i.e., the inverted non-singular encryption matrix. For added security, the host computer 20 constructs matrix A−1 from pre-stored precursor data. Each encrypted vector X1 is decrypted by performing the linear transformation L(X1)=A−1X1. The decrypted key identifier and machine identification number are output to a key validator 42. If the key validator determines that both the key identifier and the machine identification number are valid, then the key validator generates a signal which enables the option activator 44. The option activator 44 receives the decrypted option and expiration date from the encryption engine 40 and copies that data into respective fields in options data structure 46, which forms part of the system configuration database. The ultrasound imaging system is then rebooted automatically. Upon rebooting, the options handler 48 configures the system in accordance with the new data stored in the options data structure 46. In particular, the options handler 48 enables the feature identified by the new options datum stored in the options field. That feature will be enabled each time the system is initialized until expiration of the option on the date indicated in the expiration date field of the options data structure.
  • [0022]
    The method for configuring a remotely located ultrasound imaging system in accordance with the preferred embodiment of the invention is shown in more detail in FIG. 3. To facilitate entry of the encrypted feature key into the system, first the user must enter a predetermined sequence of alphanumeric characters representing an enter key entry mode command (step 50). The characters can be entered, for example, by depressing keys located either on a front panel of the system or on a modular keyboard connected to the system. A parameter routine interprets the predetermined sequence of alphanumeric characters (e.g., the sequence Δ+2) as the enter key entry mode command, placing the machine in a suspended state (i.e., the feature key entry mode). In the feature key entry mode, the next data inputted into the system will be processed as a feature key.
  • [0023]
    In the feature key entry mode, the user enters the string of numeric characters representing the encrypted feature key into the operator interface (step 52). Optionally, as the user types in the encrypted feature key, the system can respond to each key depression with a form of acknowledgement. The end of the string of numeric characters is indicated by depressing the “Enter” on the operator interface. The inputted encrypted key is then read (step 54) by storing the string of numeric characters in a buffer incorporated in the value extractor 38 (see FIG. 2). The “Read Key” function is enabled when the user types in the enter key entry mode command.
  • [0024]
    The value extractor parses or extracts the values (step 56) representing the key identifier, machine identification number, option and expiration date and then organizes those values into respective encrypted vectors. The encrypted vectors are then decrypted (step 58) using the inverted non-singular encryption matrix, as previously described. The decrypted key identifier data is then compared with a key identifier pre-stored in the system configuration database to determine whether the feature key is valid (step 60). If the feature key is valid, then the machine identification number, i.e., serial number, is compared with a machine identification number (also pre-stored in the system configuration database) which is unique to the system being configured (step 62). If the machine identification number is valid, then the decrypted option and expiration date are copied into respective fields in an options data structure in the system configuration database (step 70). The ultrasound imaging system is then rebooted automatically (step 72).
  • [0025]
    If either the key identifier or the machine identification number is invalid (steps 60 and 62 in FIG. 3), then the system exits the feature key entry mode (step 64). The message “Invalid Key” is displayed on the monitor (step 66). Then the system returns to its previous state without rebooting (step 68).
  • [0026]
    The foregoing preferred embodiments have been disclosed for the purpose of illustration. Variations and modifications of the basic concept of the invention will be readily apparent to persons skilled in the art. In particular, it will be appreciated that the encrypted feature key can be transmitted from the central location to a remote location via a communications link different than the link used to transmit data from the remote location to the central location. In addition, although the disclosed preferred embodiments employ encrypted numeric codes, it will be appreciated that the system can be readily adapted to operate using encrypted alphabetic or alphanumeric codes. All such variations and modifications are intended to be encompassed by the claims set forth hereinafter.

Claims (21)

  1. 1. A method for configuring an ultrasound imaging system at a remote location, comprising the steps of:
    storing a validation identifier inside said system;
    transmitting an option identifier which identifies a change in system configuration from said remote location to a central location;
    encrypting said validation identifier and said option identifier at said central location;
    transmitting an encrypted feature key comprising a sequence of characters from said central location to said remote location, said encrypted feature key comprising said encrypted validation identifier and said encrypted option identifier;
    placing said system in a feature key entry mode;
    inputting said encrypted feature key into said system by operation of a sequence of input keys corresponding to said sequence of characters of said encrypted feature key;
    decrypting said encrypted feature key inside said system to form decrypted data comprising a decrypted validation identifier and a decrypted option identifier;
    comparing said decrypted validation identifier with said stored validation identifier;
    altering a system configuration database inside said system to reflect said change in system configuration only if said decrypted validation identifier matches said stored validation identifier.
  2. 2. The method as defined in
    claim 1
    , wherein said change in system configuration is addition of an optional feature.
  3. 3. The method as defined in
    claim 1
    , wherein said change in system configuration is deletion of an optional feature.
  4. 4. The method as defined in
    claim 1
    , further comprising the steps of:
    transmitting an expiration date associated with said change in system configuration from said remote location to said central location; and
    encrypting said expiration date at said central location, said encrypted feature key further comprising said encrypted expiration date and said decrypted data further comprising a decrypted expiration date,
    wherein said altering step further comprises storing said decrypted expiration date in said system configuration database.
  5. 5. The method as defined in
    claim 1
    , further comprising the steps of:
    constructing a non-singular encryption matrix at said central location, said encrypting step being carried out by applying said non-singular encryption matrix to said validation identifier and said option identifier; and
    constructing a decryption matrix which is an inversion of said non-singular encryption matrix at said remote location, said decrypting step being carried out by applying said decryption matrix to vectors formed from said encrypted feature key.
  6. 6. The method as defined in
    claim 1
    , wherein said validation identifier comprises a system identifier which uniquely identifies said ultrasound imaging system.
  7. 7. The method as defined in
    claim 6
    , wherein said validation identifier further comprises a key identifier.
  8. 8. A method for configuring an ultrasound imaging system, comprising the steps of:
    storing a validation identifier inside said system;
    placing said system in a feature key entry mode;
    inputting an encrypted feature key into said system by operation of a sequence of input keys corresponding to a sequence of characters, said encrypted feature key comprising an encrypted validation identifier and an encrypted option identifier;
    decrypting said encrypted feature key inside said system to form decrypted data comprising a decrypted validation identifier and a decrypted option identifier;
    comparing said decrypted validation identifier with said stored validation identifier;
    altering a system configuration database inside said system to reflect a change in system configuration identified by said decrypted option identifier only if said decrypted validation identifier matches said stored validation identifier.
  9. 9. The method as defined in
    claim 8
    , wherein said change in system configuration is addition of an optional feature.
  10. 10. The method as defined in
    claim 8
    , wherein said change in system configuration is deletion of an optional feature.
  11. 11. The method as defined in
    claim 8
    , wherein said encrypted feature key further comprises an encrypted expiration date, said decrypted data further comprises a decrypted expiration date, said altering step further comprises storing said decrypted expiration date in said system configuration database.
  12. 12. The method as defined in
    claim 8
    , further comprising the step of constructing a decryption matrix inside said system from decryption matrix precursor data, wherein said decrypting step is carried out by applying said decryption matrix to vectors formed from said encrypted feature key.
  13. 13. The method as defined in
    claim 8
    , wherein said validation identifier comprises a system identifier which uniquely identifies said ultrasound imaging system.
  14. 14. The method as defined in
    claim 13
    , wherein said validation identifier further comprises a key identifier.
  15. 15. An ultrasound imaging system comprising:
    an ultrasound transmitter for transmitting ultrasound energy into a volume of ultrasound scatterers;
    a signal processing chain for acquiring display data representing an image of ultrasound scatterers in said volume in accordance with a system configuration comprising enabled features, said display data being based on ultrasound energy scattered by said ultrasound scatterers;
    a monitor for displaying said image in response to receipt of said display data;
    a memory for storing a system configuration database representing said enabled features of said system configuration;
    an operator interface comprising a plurality of keys for inputting data into said system;
    means for placing said system in a feature key entry mode in response to a predetermined command input via said operator interface; and
    decrypting means for outputting decrypted data in response to depression of a sequence of keys of said operator representing an encrypted feature key comprising an encrypted validation identifier and an encrypted option identifier, said decrypted data comprising a decrypted validation identifier and a decrypted option identifier;
    validating means for determining if said decrypted validation identifier is valid; and
    means for altering said system configuration as a function of said decrypted option identifier only if said decrypted validation identifier is valid.
  16. 16. The system as defined in
    claim 15
    , wherein said change in system configuration is addition of an optional feature.
  17. 17. The system as defined in
    claim 15
    , wherein said change in system configuration is deletion of an optional feature.
  18. 18. The system as defined in
    claim 15
    , wherein said encrypted feature key further comprises an encrypted expiration date, said decrypted data further comprises a decrypted expiration date, said altering step further comprises storing said decrypted expiration date in said system configuration database.
  19. 19. The system as defined in
    claim 15
    , further comprising means for storing decryption matrix precursor data and means for constructing a decryption matrix based on said decryption matrix precursor data, wherein said decrypting means perform decryption by applying said decryption matrix to vectors formed from said encrypted feature key.
  20. 20. The system as defined in
    claim 15
    , wherein said validation identifier comprises a system identifier which uniquely identifies said ultrasound imaging system.
  21. 21. The system as defined in
    claim 20
    , wherein said validation identifier further comprises a key identifier.
US09775519 1998-04-23 2001-02-05 Method and apparatus for feature configuration in remotely located ultrasound imaging system Expired - Lifetime US6418225B2 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020100033A1 (en) * 1999-11-01 2002-07-25 Curl Corporation System and method supporting type checking of options
US20020112098A1 (en) * 1999-11-01 2002-08-15 Curl Corporation System and method supporting mapping of option bindings
US20020112229A1 (en) * 1999-11-01 2002-08-15 Curl Corporation Cambridge, Ma System and method supporting property value as options
US20030046551A1 (en) * 2001-08-24 2003-03-06 Sean Brennan System and method for accomplishing two-factor user authentication using the internet
US6769001B2 (en) 1999-11-01 2004-07-27 Curl Corporation System and method supporting nonlocal values
US20060101286A1 (en) * 2004-11-08 2006-05-11 Catherman Ryan C Theft deterrence using trusted platform module authorization
CN103654843A (en) * 2012-09-20 2014-03-26 飞依诺科技(苏州)有限公司 Ultrasound diagnostic device and method and system for communication interface configuration of ultrasound diagnostic device
CN107566411A (en) * 2017-10-23 2018-01-09 龙海 Dynamic password verification method based on independent electronic identity system

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6519632B1 (en) * 1999-04-28 2003-02-11 General Electric Company Method and apparatus for configuring imaging system to communicate with multiple remote devices
US7062765B1 (en) * 1999-05-25 2006-06-13 Realnetworks, Inc. System and method for updating information via a network
US7352770B1 (en) * 2000-08-04 2008-04-01 Intellon Corporation Media access control protocol with priority and contention-free intervals
US6785578B2 (en) 2001-10-09 2004-08-31 General Electric Company User input device for controlling medical imaging equipment motion
US7826466B2 (en) * 2002-06-26 2010-11-02 Atheros Communications, Inc. Communication buffer scheme optimized for VoIP, QoS and data networking over a power line
US8149703B2 (en) * 2002-06-26 2012-04-03 Qualcomm Atheros, Inc. Powerline network bridging congestion control
US7685435B2 (en) * 2002-07-24 2010-03-23 Panasonic Corporation Program development method, program development supporting system, and program installation method
US20040163131A1 (en) * 2003-01-31 2004-08-19 Benco David S. Telecommunication feature activation and billing support from a centralized server
US6990434B2 (en) * 2003-10-28 2006-01-24 General Electric Company System and method for coordinated remote activation of multiple software-based options
US7281187B2 (en) * 2003-11-20 2007-10-09 Intellon Corporation Using error checking bits to communicated an address or other bits
US8090857B2 (en) 2003-11-24 2012-01-03 Qualcomm Atheros, Inc. Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks
US7660327B2 (en) * 2004-02-03 2010-02-09 Atheros Communications, Inc. Temporary priority promotion for network communications in which access to a shared medium depends on a priority level
US7715425B2 (en) * 2004-02-26 2010-05-11 Atheros Communications, Inc. Channel adaptation synchronized to periodically varying channel
JP4678199B2 (en) * 2005-02-10 2011-04-27 パナソニック電工株式会社 Electric tool
US7636370B2 (en) * 2005-03-03 2009-12-22 Intellon Corporation Reserving time periods for communication on power line networks
US20060247606A1 (en) * 2005-03-09 2006-11-02 Batch Richard M System and method for controlling access to features of a medical instrument
US7822059B2 (en) 2005-07-27 2010-10-26 Atheros Communications, Inc. Managing contention-free time allocations in a network
US8175190B2 (en) 2005-07-27 2012-05-08 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
US8607310B2 (en) * 2006-04-17 2013-12-10 Raritan Americas, Inc. Association of in-band and out-of-band identification credentials of a target device
EP2159966A1 (en) 2007-05-10 2010-03-03 Intellon Corporation Managing distributed access to a shared medium
US8660013B2 (en) 2010-04-12 2014-02-25 Qualcomm Incorporated Detecting delimiters for low-overhead communication in a network
US8891605B2 (en) 2013-03-13 2014-11-18 Qualcomm Incorporated Variable line cycle adaptation for powerline communications
US9378767B2 (en) 2013-07-26 2016-06-28 International Business Machines Corporation Configuration of a physical control unit to support multiple logical control units for different tape drive types in a mainframe native tape attachment storage system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5008936A (en) * 1988-12-09 1991-04-16 The Exchange System Limited Partnership Backup/restore technique in a microcomputer-based encryption system
US5265164A (en) * 1991-10-31 1993-11-23 International Business Machines Corporation Cryptographic facility environment backup/restore and replication in a public key cryptosystem
US5610981A (en) * 1992-06-04 1997-03-11 Integrated Technologies Of America, Inc. Preboot protection for a data security system with anti-intrusion capability
US5848231A (en) * 1996-02-12 1998-12-08 Teitelbaum; Neil System configuration contingent upon secure input
US6016439A (en) * 1996-10-15 2000-01-18 Biosense, Inc. Method and apparatus for synthetic viewpoint imaging

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7340720B2 (en) * 1999-11-01 2008-03-04 Sumisho Computer Systems Corporation System and method supporting mapping of option bindings
US20020112098A1 (en) * 1999-11-01 2002-08-15 Curl Corporation System and method supporting mapping of option bindings
US20020112229A1 (en) * 1999-11-01 2002-08-15 Curl Corporation Cambridge, Ma System and method supporting property value as options
US7401327B2 (en) 1999-11-01 2008-07-15 Sumisho Computer Systems Corporation System and method supporting property values as options
US6769001B2 (en) 1999-11-01 2004-07-27 Curl Corporation System and method supporting nonlocal values
US7373639B2 (en) * 1999-11-01 2008-05-13 Sumisho Computer Systems Corporation System and method supporting type checking of options
US20020100033A1 (en) * 1999-11-01 2002-07-25 Curl Corporation System and method supporting type checking of options
US20070136799A1 (en) * 2001-08-24 2007-06-14 Secure Computing Corporation System and method for accomplishing two-factor user authentication using the internet
US20030046551A1 (en) * 2001-08-24 2003-03-06 Sean Brennan System and method for accomplishing two-factor user authentication using the internet
US7516483B2 (en) 2001-08-24 2009-04-07 Secure Computing Corporation System and method for accomplishing two-factor user authentication using the internet
US7590859B2 (en) * 2001-08-24 2009-09-15 Secure Computing Corporation System and method for accomplishing two-factor user authentication using the internet
US20060101286A1 (en) * 2004-11-08 2006-05-11 Catherman Ryan C Theft deterrence using trusted platform module authorization
US7600134B2 (en) 2004-11-08 2009-10-06 Lenovo Singapore Pte. Ltd. Theft deterrence using trusted platform module authorization
CN103654843A (en) * 2012-09-20 2014-03-26 飞依诺科技(苏州)有限公司 Ultrasound diagnostic device and method and system for communication interface configuration of ultrasound diagnostic device
CN107566411A (en) * 2017-10-23 2018-01-09 龙海 Dynamic password verification method based on independent electronic identity system

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