Patents Issued in December 9, 2004
  • Publication number: 20040247087
    Abstract: An apparatus for controlling operation of a recording device with a telephone configured for orientation in a first state and a second state includes: (a) an information conveying section for conveying information from the telephone to a recording locus in the recording device; (b) an indicating section for receiving a monitor signal having a first value when the telephone is in the first state and having a second value when the telephone is in the second state; the indicating section employs a single fixed bias to generate a first indicating signal when the telephone is in the first state and to generate a second indicating signal when the telephone is in the second state; and (c) an engaging section; the engaging section responds to the first and second indicating signals to orient the recording device for recording the information or for not recording.
    Type: Application
    Filed: June 7, 2003
    Publication date: December 9, 2004
    Inventors: Ko Chuk, Tu Tian Tian
  • Publication number: 20040247088
    Abstract: Disclosed is an automatic voice call connection service method using a personal phone book database constructed through voice recognition, which includes the steps of allocating personal databases corresponding to phone number to each service user; storing name text, speaker verification feature, speaker-dependent voice recognition name feature and called phone number to the personal database; extracting the speaker verification feature when the speaker requires a phone call and then sending the feature to a voice recognition server/database; verifying the speaker with the feature and searching a name text and a called phone number with the speaker-dependent voice recognition name feature; checking the searched name text and sending the text as a voice to the user; and connecting the call through a public switched telephone network (PSTN).
    Type: Application
    Filed: March 3, 2004
    Publication date: December 9, 2004
    Inventor: Moon Seub Lee
  • Publication number: 20040247089
    Abstract: A presence device operable in a first mode and a second mode is associated with a communication device. In the first mode, a user using the presence device is biometrically authenticated and a presence confirmation input is received from the communication device. In the second mode, a user-entered log-in input is received from the communication device. A central presence database is updated to indicate that the communication device is active for the user. A received message which is to be routed to the user is sent to the active device indicated by the central presence database.
    Type: Application
    Filed: March 23, 2004
    Publication date: December 9, 2004
    Inventors: Claire Svetlana Vishik, Sreenivasa Rao Gorti, Paul Van Vleck
  • Publication number: 20040247090
    Abstract: A process for providing alert notification to communication devices, first utilizing data storage containing identifying criteria and device addresses of all persons capable of receiving alert messages. Second utilizing a set of criteria quickly predetermined by an end user to qualify which device addresses will receive the alert message. Third provides sending alert messages to qualified addresses of the devices whereby sending instant communication to precise groups of addressed devices. A preferred method of the alert notification system provides for two-way communication with the communication devices.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 9, 2004
    Inventor: Wayne Denis Nurmela
  • Publication number: 20040247091
    Abstract: The invention includes a first memory capable for storing a telephone number attached with a predetermined number, a second memory for storing the predetermined number, an interface for connecting the telephone apparatus with the telephone line through a PBX, a control portion for controlling a whole other portions, a comparing portion for comparing the predetermined number in the first memory which is selected as a destination for an E-mail and the predetermined number in the second memory, a deleting portion for delete the attached predetermined number from the telephone number as the destination for the E-mail when the comparing portion determines the predetermined number in the first memory which is selected as the destination for the E-mail corresponds to the predetermined number in the second memory and a mail-sending portion for sending an E-mail together with the telephone number as the destination to the E-mail server.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 9, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventor: Kenichi Shibata
  • Publication number: 20040247092
    Abstract: In providing an information assistance service in a call by a user, the context of the call is ascertained. Context information is derived from information exchanges during the call. Inferences as to types of advertisement pertinent to the user location, event, etc. are drawn based on the context information. Pertinent advertisements, which may be further individualized based on personal preferences, are provided to the user at the conclusion of the call, or otherwise transmitted to the user via voicemail, SMS, email, WAP, paging, facsimile, instant messaging, text messaging, picture phone, video phone, etc.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 9, 2004
    Inventors: Timothy A. Timmins, Karen L. Johnson
  • Publication number: 20040247093
    Abstract: A method, system, and apparatus for provisioning recorded announcements onto recorded announcement equipment of a telecommunications network. In one embodiment, a user downloads a desired announcement from a database through a computer network and onto a computer, and then uploads the announcement from the computer to a particular recorded announcement unit. In another embodiment, a user remotely administers a transfer of a digital audio file from a database through a network and to a particular recorded announcement unit. The recorded announcement equipment can reside in any appropriate node of the telecommunications network, including within a central office or within a service node that provides announcements for a plurality of central offices.
    Type: Application
    Filed: May 20, 2002
    Publication date: December 9, 2004
    Inventors: Karl W. Potts, Henry R. White
  • Publication number: 20040247094
    Abstract: An advanced intelligent network (AIN) telephony service provided in a public switched telephone network (PSTN) is controlled based on instructions from a subscriber, browsing a packet switched data network using a voice browser. A voice extensible markup language (VXML) platform is connected to a web server and a service control point (SCP). The web server stores announcements that can be easily created and modified by a subscriber. When the VXML platform receives an announcement ID from the SCP, the VXML platform determines a location where the announcement is stored based on the ID, and then plays the remotely stored announcement. Thus, the announcements can be easily changed without affecting the SCP and other AIN network elements.
    Type: Application
    Filed: March 24, 2004
    Publication date: December 9, 2004
    Applicant: SBC Knowledge Ventures, L.P.
    Inventors: Susanne Marie Crockett, Nancy Ann Book
  • Publication number: 20040247095
    Abstract: The invention relates to a method according to which, in a speech-based service, a link is established between a user of said service and a speech service network server. According to the inventive method, the user of the service uses a short call number and a designation of the service to utilize said service. Using said short call number, the user establishes a link with the speech service network server and utilizes the designation of the service in the speech service network server to identify and start the service. The inventive system is particularly flexible when call numbers or services are changed, for the marketing of services and for the use of mnemonically obvious service designations.
    Type: Application
    Filed: April 16, 2004
    Publication date: December 9, 2004
    Inventor: Bruno Fiter
  • Publication number: 20040247096
    Abstract: A PBX which accommodates an extension station and voice store equipment, the PBX comprising a controller for controlling interconnection between the extension or the voice store equipment and an outside line, the controller including: a destination extension number determination unit for determining the destination extension number for an incoming call from the outside line; a destination extension determination unit for determining whether the destination extension is the extension station or the voice store equipment based on the determined destination extension number; a voice store equipment termination processing unit for performing termination processing concerning the voice store equipment in case it is determined on the destination extension determination means that the destination extension is the voice store equipment; and an extension station termination processing unit for performing termination processing concerning the extension station in case it is determined on the destination extension deter
    Type: Application
    Filed: April 26, 2004
    Publication date: December 9, 2004
    Inventor: Makoto Nakatsu
  • Publication number: 20040247097
    Abstract: A telephone message system accessible to a calling party attempting to reach a called party is disclosed. The system includes a carrier switch configured to route telephone calls via a public switched telephone network, and a message server associated with the calling party and independent of the called party, wherein the message server is configured to record a message from the calling party and to deliver the message to the called party, and wherein the carrier switch is configured to selectively route the calling party to the message server.
    Type: Application
    Filed: May 11, 2004
    Publication date: December 9, 2004
    Inventors: John T. Dillard, Duane A. Klein, Gary Frost
  • Publication number: 20040247098
    Abstract: A method provides customized voice mail settings feature information to a telecommunications service subscriber. The method includes customizing a list of persistent settings features to include multiple persistent settings features that relate to telecommunications services subscribed to by the telecommunications service subscriber. The persistent settings features are maintained in a defined state through more than one subscriber session. The subscriber is sequentially prompted to select a persistent settings feature from the customized list by sequentially playing each of the persistent settings features to the subscriber.
    Type: Application
    Filed: July 12, 2004
    Publication date: December 9, 2004
    Applicant: SBC Technology Resources, Inc.
    Inventors: Larry Lee Valco, Sherrill J. Packebush, John Payton Beans
  • Publication number: 20040247099
    Abstract: The invention relates to a method of automatically dialing a telephone number from a string of characters constituted by the number or by a subscriber name corresponding to the number, the string being found in a document displayed on a computer screen. The method consists essentially in using optical character recognition. The invention is applicable to computer-assisted telephony.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 9, 2004
    Inventors: Benoit Brun, Thierry Filoux
  • Publication number: 20040247100
    Abstract: The present invention relates to a system and a method for charging in a communication network and to a communication network charging server. The system comprises a client (1) associated with the network for providing services to subscribers associated with the network. The charging server (2) is adapted to handle subscriber account information, and the said client (1) is adapted to send a first charging request message for a service, to the charging server (2) before the service is provided, using an on-line charging protocol (3). The charging server (2) is also adapted to perform pre-reservation of an amount of resources from the subscriber's account, wherein the amount depends on a requested amount included in the message about the service, and to return an answer message including information indicating whether an amount of resources is pre-reserved from said subscriber account for enabling usage of the service to the client (1) using the on-line charging protocol (3).
    Type: Application
    Filed: April 7, 2004
    Publication date: December 9, 2004
    Inventors: Harri Hakala, Matti Halkosaari, Robert Tornkvist
  • Publication number: 20040247101
    Abstract: A telephone is provided which includes a processor device which is set up in such a way that the phone number of a caller is automatically displayed during a telephone connection.
    Type: Application
    Filed: February 3, 2004
    Publication date: December 9, 2004
    Inventor: Bernard Dumoulin
  • Publication number: 20040247102
    Abstract: A telephone line management system in communication with a telephone line is provided. In one aspect, the system includes a caller ID module operatively coupled to the telephone line for receiving and displaying a name and a telephone number of a calling party associated with a received telephone call and a false special information tone (SIT) generator module operatively coupled to the telephone line for sending a false signal on a telephone line substantially similar to at least a first part of a SIT in response to an incoming telephone call. In another aspect, the system includes a caller ID module, a false SIT generator module, and a controller for determining when the name and telephone number of a calling party is displayed and when the false signal is operationally coupled to the telephone line. In other embodiments, the system may include an answering machine module or a telephone module.
    Type: Application
    Filed: February 13, 2004
    Publication date: December 9, 2004
    Applicant: Royal Appliance Mfg. Co.
    Inventors: Mark E. Reindle, Jonathan Katz
  • Publication number: 20040247103
    Abstract: A communication management device holds a management table that manages users of a first communication device through a sixth communication device connected to a network and status of the users, whether the users are absent or present. When a user A of the first communication device carries out a telephone conversation with a user K of the fourth communication device, the first communication device transmits information of the user K to the communication management device. The communication management device determines whether or not the user K is present in accordance with the management table. When the user K is present, the communication is established between the first communication device and the fourth communication device. Accordingly, unnecessary voice data can be prevented from being transmitted to the network.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 9, 2004
    Applicant: MURATA KIKAI KABUSHIKI KAISHA
    Inventor: Yoshifumi Tanimoto
  • Publication number: 20040247104
    Abstract: The invention relates to a service that forms groups from subscribers to a communication network by means of data sets allocated to the subscribers which are available within the communication network. The identifications of the subscribers are filed in fields of the data sets. The service automatically checks selected fields of the data sets for identical identifications and automatically groups those subscribers that have identical identifications in the selected fields.
    Type: Application
    Filed: April 30, 2004
    Publication date: December 9, 2004
    Inventor: Ralf Neuhaus
  • Publication number: 20040247105
    Abstract: A network-based call reception limiter is disclosed. The network-based call reception limiter prevents calls from ringing to a telephone. The network does so by directing calls made from a calling party to a third party, rather than directing the call to the party to which the calling party intended to be connected (the called party). The network may communicate the identity and/or calling time of the calling party to the called party during the period that the network directs calls away from the called party.
    Type: Application
    Filed: March 29, 2002
    Publication date: December 9, 2004
    Inventors: Karen Mullis, Anita Hogans Simpson
  • Publication number: 20040247106
    Abstract: A communications network-based system and service is disclosed. The service permits subscribers to control and manage incoming telephone calls. Subscribers can establish preferences for how calls will be handled by a communications network if the calls are received by while the subscriber in connected to an information network. The service also notifies a subscriber of a calling party's call based on whether preselected or predesignated preferences of the called party correspond to identifier(s) of the calling party.
    Type: Application
    Filed: June 28, 2002
    Publication date: December 9, 2004
    Inventors: Karen Mullis, Anita Hogans Simpson
  • Publication number: 20040247107
    Abstract: The call forwarding is provided within and between telephone networks by establishing a generalized procedure for call delivery and call forwarding. Network protocols are addressed using a common framework for processing call delivery and call forwarding among any combination of different types of networks. An “integrated location management” component realizes the generalized procedure. The integrated location management component is a device capable of holding location information for diverse cellular networks, including Internet telephony systems. The inventive system and method executes generalized call delivery and call forwarding for calls among different types of telephone networks, including wireless networks and Internet networks. The calls may originate from any type of telephony network. Having been initially directed to any of these networks, calls can then be call forwarded to any of these networks.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 9, 2004
    Inventors: Kuo-Wei H. Chen, Oliver Haase, Jonathan Michael Lennox, Kazutaka Murakami, Ming Xiong
  • Publication number: 20040247108
    Abstract: A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end to provide a communication path for signals to and from the phone lines. Briefly described, a means for providing a proper hookswitch transition for a variety of international phone standards is provided. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DAA circuitry may be utilized which satisfies many or all hookswitch transition standards without the use of additional discrete devices. The hookswitch transition standards may be satisfied by ramping down the current flowing through the hookswitch prior to transitioning the hookswitch state. In this manner the hookswitch current change as a function of time (di/dt) may be decreased. Thus, the current through the hookswitch may be actively controlled prior to switching the hookswitch from an off-hook condition to an on-hook condition.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 9, 2004
    Applicant: Silicon Laboratories Inc.
    Inventors: George Tyson Tuttle, Jeffrey W. Scott, Navdeep S. Sooch, David R. Welland
  • Publication number: 20040247109
    Abstract: When selecting a specific input source that can be processed by only a second voice-data processing unit instead of an input source currently being processed by a first voice-data processing unit, a voice-data processing circuit selects and delivers an input source selected by a second analog switch to the first voice-data processing unit by using a first analog switch. Then, after the first and second voice-data processing units simultaneously process the identical input source other than the specific input source over a certain time period, the second analog switch selects and delivers the specific input source to the second voice-data processing unit and a first switch selects an output of the second voice-data processing unit and outputs a voice of the specific input source as an analog audio output.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 9, 2004
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventor: Kazuhiro Nakata
  • Publication number: 20040247110
    Abstract: A method for improving a downlink signal received by a listener on a phone is disclosed. The method includes calculating an environment noise level of the listener and filtering and adjusting gain of the downlink signal based on the environment noise level.
    Type: Application
    Filed: March 26, 2004
    Publication date: December 9, 2004
    Inventors: Michael T. Harvey, Michael P. Perri
  • Publication number: 20040247111
    Abstract: A method of suppressing an echo signal in a communication path such as acoustic coupling between a speaker and a microphone in a telephone device handset includes the steps of monitoring a transmitted signal supplied to the communication path to determine an attribute thereof; generating a leaky mask based on the determined attribute and an attribute of a received echo signal; and partially cancelling the received echo signal using the leaky mask.
    Type: Application
    Filed: January 26, 2004
    Publication date: December 9, 2004
    Inventors: Mirjana Popovic, Dieter Schultz
  • Publication number: 20040247112
    Abstract: A method and apparatus for estimating transmission delay across a telecommunications network by performing a statistical analysis of conversational behavior in the network. Certain characteristic events associated with conversational behavior (such as, for example, alternative silence events, double-talk events, talk-spurt events and pause in isolation events) are identified and measured. Then, based on the proportion of time that these events occur, an estimate of the delay is calculated using a predetermined equation. Illustratively, the equation is a linear regression equation which has been determined experimentally.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Inventors: Minkyu Lee, James William McGowan
  • Publication number: 20040247113
    Abstract: A key telephone set comprises a telephone main body, an interchangeable dial button unit, an interchangeable line button unit, and an interchangeable display unit. The interchangeable dial button unit, the interchangeable line button unit and the interchangeable display unit are attached to the telephone main body while they can be detached from the telephone body from a top surface side of the key telephone set without disassembly of the telephone main body.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 9, 2004
    Applicant: NEC INFRONTIA CORPORATION
    Inventor: Masafuku Akatsu
  • Publication number: 20040247114
    Abstract: The invention relates to a universal calculation method that is applied to points on an elliptical curve which is defined by a Weierstrass equation. According to the invention, identical programmed computing means are used to perform an operation involving the addition of points and an operation involving the doubling of points. The computing means comprise, in particular, a central unit which is connected to a storage unit.
    Type: Application
    Filed: April 13, 2004
    Publication date: December 9, 2004
    Inventor: Marc Joye
  • Publication number: 20040247115
    Abstract: Provided is an elliptic curve exponentiation apparatus that can counter the DFA when an elliptic curve exponentiation technique is used. A computation result verification unit 127 receives, as a computation result, an exponentiation-result-point (X, Y) from an elliptic curve computation unit 124. The computation result verification unit 127 computes X3+a×X+b, and computes Y2, and outputs the received exponentiation-result-point when judging that Y2=X3+a×X+b, and does not output the received exponentiation-result-point when not judging that Y2=X3+a×X+b.
    Type: Application
    Filed: January 23, 2004
    Publication date: December 9, 2004
    Inventors: Takatoshi Ono, Natsume Matsuzaki
  • Publication number: 20040247116
    Abstract: In symmetric methods of encryption the stream cipher should be as long as the plaintext message. Such a cipher is difficult to generate if the plaintext data to be encrypted is enormous. The present invention provides a method of generating a stream cipher of variable length which may be extremely long. It is generated by creating a number of random sub-keys having non-repeating lengths and combining such sub-keys in a random way.
    Type: Application
    Filed: February 9, 2004
    Publication date: December 9, 2004
    Inventors: Stephen Laurence Boren, Andre Jacques Brisson
  • Publication number: 20040247117
    Abstract: The purpose of this invention is to propose a new encryption method which offers a high level of security combined with a high execution speed.
    Type: Application
    Filed: May 14, 2004
    Publication date: December 9, 2004
    Inventors: Serge Vaudenay, Pascal Junod
  • Publication number: 20040247118
    Abstract: A data processing device, in a system performing authentication among a plurality of storage device (IC cards etc.), able to maintain security of authentication at other device even when secrecy of key data held by part of the devices is lost, wherein a key generation unit generates individual key data unique to an IC card based on identification data unique to the IC cards received from the ICs of the IC cards and a card processing unit performs mutual authentication with the IC based on the individual key data.
    Type: Application
    Filed: March 4, 2004
    Publication date: December 9, 2004
    Applicant: Sony Corporation
    Inventors: Kei Tateno, Masahiro Sueyoshi, Yoshiaki Hirano, Katsuyuki Teruyama
  • Publication number: 20040247119
    Abstract: The invention relates to methods and corresponding systems for embedding a host signal (1) with auxiliary information (6) comprising the steps of filtering the host signal using appropriate filter(s) (2,10) to produce a modified signal and encoding the auxiliary information within the modified signal in an encoder (5) using a cross-correlation technique. In order to improve the performance of the encoding process with respect to the correlation delay, the present invention uses the appropriate filters to remove dominant tonal components by flattening the power spectrum of a host signal and/or also to remove low frequency components. The removal of dominant tonal components and/or to low frequency components prior to the encoding or decoding process improves the performance of the encoding/decoding process. The removed components are subsequently re-introduced by filtering (21) and/or summing (8) to ensure the encoded signal (9) is not perceptibly different to the unencoded signal (1).
    Type: Application
    Filed: April 14, 2004
    Publication date: December 9, 2004
    Inventor: Aweke Negash Lemma
  • Publication number: 20040247120
    Abstract: A multilayer digital content protection system, particularly for a digital cinema application is provided. Detection of unauthorized activity at the time it is occurring is provided using a first protection layer. Two layers of imperceptible watermarks, one camcorder viewable and one camcorder invisible are inserted into unauthorized copies of the digital content with second and third protection layers. Strong near infrared is also used to degrade the quality of any attempted unauthorized recording of digital content using a camcorder.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Inventors: Hong Heather Yu, Prabir Bhattacharya
  • Publication number: 20040247121
    Abstract: A system for embedding auxiliary digital information into a primary digital signal to form a composite digital signal. Auxiliary data bits modulate a pseudo-random (e.g., PN) sequence to provide an auxiliary data sequence used to modify the Least Perceptually Significant Bits (LPSBs) of successive multi-bit samples of the primary signal. In a cross-term compensation embodiment, a correlation between the PN sequence and the sample bits is determined, and compared to the auxiliary data bits to determine whether there is a desired correspondence. The LPSBs in the samples are toggled, if necessary, to provide the desired correspondence. The selection of LPSBs to modify accounts for a desired noise level of the auxiliary data in the primary signal. LPSBs may be modified based on a sparse PN sequence to achieve the desired noise level and conceal the presence of the auxiliary data.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 9, 2004
    Applicant: Verance Corporation
    Inventors: Chong U. Lee, Katherine S. Lam, Julien J. Nicolas, Edward Atrero
  • Publication number: 20040247122
    Abstract: A single decryption engine is used for decrypting a plurality of encrypted transport streams. Packets in each of the plurality of encrypted transport streams are tagged with a tag value to indicate their origin stream. The tagged packets from the plurality of encrypted transport streams are merged into a merged transport stream. The packets in the merged transport stream are decrypted with the decryption engine to produce a decrypted merged transport stream. The decrypted merged transport stream is split into a plurality of decrypted transport streams, equal in number to the plurality of encrypted transport streams, by routing packets in the decrypted merged transport stream to specific decrypted transport streams according to their tag value. A null-packet padding technique, a gapped-clock technique and a multi-port static RAM controller technique are disclosed.
    Type: Application
    Filed: April 24, 2003
    Publication date: December 9, 2004
    Applicant: General Instrument Corporation
    Inventors: Lance Hobrock, Boyko Boykov, Matthew Herring, Ashish Tiwari, Mack Daily
  • Publication number: 20040247123
    Abstract: Methods for transmitting digitized x-ray radiographs are disclosed. Digitization may be carried out through use of a digital camera or through digital radiography. After digitization is complete, in certain embodiments of the present invention, the digitized x-ray radiograph is encrypted. In other embodiments, a virtual private network is established. In still other embodiments, either before or after generating a digitized x-ray image, written notice to a human subject concerning the identity of one or more authorized intended recipients may be provided. All embodiments include transmission of the digitized x-ray radiograph.
    Type: Application
    Filed: May 1, 2003
    Publication date: December 9, 2004
    Inventor: Neil M. Goldstein
  • Publication number: 20040247124
    Abstract: An RNC server issues an encryption start instruction to a media gateway (MG) and a terminal. The MG and terminal, which have received the encryption start instruction, encrypt U-Plane information using a predetermined secret key, and adds a predetermined encryption start bit to the encrypted U-Plane information for transmission to a communication partner. The communication partner, upon detection of the encryption start information, decrypts the received U-Plane information using the predetermined secret key.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 9, 2004
    Inventor: Ken'ichiro Kamachi
  • Publication number: 20040247125
    Abstract: Implementing a portion of a data stream to encrypt data packets being transmitted in a wireless network. More specifically, data segments from one or more data packets may be used to dynamically change the master key used to encrypt the data packets. Each of the transmitting and receiving nodes includes a constellation of master keys which may be implemented to encrypt a data packet. Data segments selected from one or more data packets which are transmitted from the transmitting node to the receiving node may be used to define the selection of one of the master keys used to encrypt a subsequent data packet. Because the master key may be selected as a function of the data stream, the master key used to encrypt a particular packet may be changed dynamically on a packet-by-packet basis.
    Type: Application
    Filed: June 4, 2003
    Publication date: December 9, 2004
    Inventor: Stanley Archer McClellan
  • Publication number: 20040247126
    Abstract: Wireless network and method for communicating in same. More specifically, techniques for improving over-the-air transmissions in networks implementing wired-equivalent privacy (WEP) security protocols. In one embodiment, during transmission of an encrypted data packet, the standard initialization vector field in the header of an encrypted data packet does not include the corresponding initialization vector used to encrypt the data packet. Further, the initialization vector is composed as a function of other data packets which are transmitted before the encrypted data packet that implemented the corresponding initialization vector. A receiving node reconstructs the initialization vector using the previously transmitted data packets. Accordingly, the receiving node is able to decrypt data packets without receiving an initialization vector along with the corresponding data packet that was encrypted with the initialization vector.
    Type: Application
    Filed: June 4, 2003
    Publication date: December 9, 2004
    Inventor: Stanley Archer McClellan
  • Publication number: 20040247127
    Abstract: A method and apparatus for re-synchronizing a stream cipher during soft handoff. Transmitted quasi-secret keying information is used with a secret key to reinitialize a stream cipher generator located in a base station and a stream cipher generator located in a travelling mobile station. Since the quasi-secret keying information is uniquely determined according to each base station in the wireless telephone system, a base station's quasi-secret keying information and a shared secret key can also be used to create a new key. Thus, as the mobile station travels from one base station to another base station, a unique new key is generated for each base station.
    Type: Application
    Filed: June 22, 2004
    Publication date: December 9, 2004
    Inventor: Gregory G. Rose
  • Publication number: 20040247128
    Abstract: Aspects of an encryption/decryption key generation and distribution may include generating one or more keys for use by one of a plurality of encryption/decryption devices coupled to a serial link within a chip. The generated keys may be transmitted via, for example, a high speed serial link to which one or more of the encryption/decryption devices in the chip may be coupled. The encryption/decryption devices coupled to the serial link may be adapted to examine or identify the transmitted key packets on the serial link and determine whether a particular key packet contains a key that which should be utilized by a particular one of the encryption/decryption devices. Upon identification of a key, the key may subsequently be processed and/or utilized by an integrated encryption/decryption processor associated with the encryption/decryption device to which the encryption key belongs.
    Type: Application
    Filed: April 15, 2003
    Publication date: December 9, 2004
    Inventors: Kevin Patariu, Iue-Shuenn Chen, Jay Kwok Wa Li, Cynthia Dang, Mark Taylor Core
  • Publication number: 20040247129
    Abstract: Secure access and processing of an encryption/decryption key may include generating one or more keys within a key controller block of a chip. The generated keys may be transferred from the key controller block of the chip to an on-chip bus interface block via a secure serial link. The transferred keys may be stored in registers which may be accessible by only the key controller block of the chip. In this regard, the generated keys may be written to one or more of the key registers only by the key controller block. Furthermore, a written key may be read from a key register only by the key controller block. During the transfer of a generated key, a data valid signal may be used to indicate valid keys in a data signal used to transfer the keys via the secure serial link.
    Type: Application
    Filed: April 16, 2003
    Publication date: December 9, 2004
    Inventors: Kevin Patariu, Iue-Shuenn Chen, Jay Kwok Wa Li, Cynthia Dang, Mark Taylor Core
  • Publication number: 20040247130
    Abstract: A key information issuing device (1, 1A, 1B) issuing key information to a key information retaining device (2, 2A, 2B) includes an authentication module (14, 3) authenticating an issuer of the key information, an output module (13) outputting the key information to the key information retaining unit, and a recording module (11) recording a mapping of the issued key information to the key information retaining unit. The key information is issued in response to an indication of the authenticated issuer.
    Type: Application
    Filed: May 20, 2004
    Publication date: December 9, 2004
    Applicant: Fujitsu Limited
    Inventor: Nobuyuki Koike
  • Publication number: 20040247131
    Abstract: A security architecture in which a security module is integrated in a client machine, wherein the client machine includes a local host that is untrusted. The security module performs encryption and decryption algorithms, authentication, and public key processing. The security module also includes separate key caches for key encryption keys and application keys. A security module can also interface a cryptographic accelerator through an application key cache. The security module can authorize a public key and an associated key server. That public key can subsequently be used to authorize additional key servers. Any of the authorized key servers can use their public keys to authorize the public keys of additional key servers. Secure authenticated communications can then transpire between the client and any of these key servers. Such a connection is created by a secure handshake process that takes place between the client and the key server.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Applicant: Broadcom Corporation
    Inventor: Mark Buer
  • Publication number: 20040247132
    Abstract: An acoustic correction apparatus processes a pair of left and right input signals to compensate for spatial distortion as a function of frequency when the input signals are reproduced through speakers in a sound system. The sound-energy of the left and right input signals is separated and corrected in a first low-frequency range and a second high-frequency range. The resultant signals are recombined to create image-corrected audio signals having a desired sound-pressure response when reproduced by the speakers in the sound system. The desired sound-pressure response creates an apparent sound image location with respect to a listener. The image-corrected signals may then be spatially enhanced to broaden the apparent sound image.
    Type: Application
    Filed: January 22, 2004
    Publication date: December 9, 2004
    Inventors: Arnold I. Klayman, Alan D. Kraemer
  • Publication number: 20040247133
    Abstract: To demodulate the RDS signal, the stereo-multiplex signal is multiplied in a first branch by the in-phase component of an oscillator, filtered by a low-pass filter while decimated in its sampling rate and filtered by a high-pass filter, while in a second branch it is multiplied by the quadrature component of the oscillator, filtered by a low-pass filter, decimated in its sampling rate, and filtered by a high-pass filter. An error signal to control the oscillator is calculated from the high-pass-filtered signals and the RDS bit clock. A clock generator generating the RDS bit clock is controlled by the first high-pass-filtered signal and by the oscillator. An RDS decoder, to whose input the first high-pass-filtered signal is applied, and an arithmetic unit which calculates the error signal from the high-pass-filtered signals and from the RDS bit clock are both clocked by the clock generator. The RDS data are retrievable from the output of the RDS decoder.
    Type: Application
    Filed: December 5, 2003
    Publication date: December 9, 2004
    Inventors: Stefan Gierl, Christoph Benz
  • Publication number: 20040247134
    Abstract: A system and method of producing an output sound field that is representative of an input sound field compatible with both existing prior art sound reproduction systems, for example ITU 5.1/6.1, and with a three-dimensional reproduction system unique to this disclosure. One embodiment of the disclosed system is comprised of a microphone array, an encoder, a decoder, and a plurality of speakers, some of which may not be located in the plane of the listener. A further embodiment discloses matrices to encode and decode the signals representative of the input and output sound fields respectively.
    Type: Application
    Filed: March 18, 2004
    Publication date: December 9, 2004
    Inventor: Robert E. Miller
  • Publication number: 20040247135
    Abstract: The present invention improves the stability of aural images in the decoding of multichannel signals. Output center-channel and back-surround channel signals are derived or augmented by applying signal processors such as matrix decoders to multichannel input signals.
    Type: Application
    Filed: March 19, 2004
    Publication date: December 9, 2004
    Inventors: Roger Wallace Dressler, Kenneth James Gundry
  • Publication number: 20040247136
    Abstract: An audio power meter includes a circuit for measuring the root mean square power of an amplified audio signal outputted by an audio power amplifier to which the audio power meter is connected. The circuit generates an output signal indicative of the root mean square power of the amplified audio signal. A first bar display includes a plurality of separately illuminatable segments arranged linearly with respect to one another. Each segment of the plurality of separately illuminatable segments is responsive to the output signal of the circuit and is selectively illuminated in response thereto. When the measured root mean square power of the amplified audio signal exceeds a selected threshold root mean square power level, the amplified audio signal is attenuated.
    Type: Application
    Filed: May 24, 2004
    Publication date: December 9, 2004
    Inventor: Henry B. Wallace