Abstract: Methods and systems for a transport single key change point for all package identifier channels are disclosed and may include descrambling a received transport stream comprising multiple package identifier (PID) channels with multiple key change points, and synchronizing at least a portion of the multiple key change points to occur at a common time. The transport stream may be conditional access or copy protect scrambled. The timing of the key change points may be synchronized by modifying one or more scrambling control bits for the descrambled received transport stream. At least one PID channel in said descrambled received transport stream may be re-scrambled utilizing one or more of the scrambling control bits, and a portion of the PID channels may bypass the re-scrambling. The re-scrambling may include one or more of CP re-scrambling and CA re-scrambling. Each PID channel may be de-scrambled and/or re-scrambled utilizing a separate key.

Abstract: The present invention provides a method of operating a mobile unit in a wireless communication system. Embodiments of the method may include providing access request message(s) including information indicative of a first counter and a message authentication code formed using a first key. The first key is derived from a second key and the first counter. The second key is derived from a third key established for a security session between the mobile unit and an authenticator. The first counter is incremented in response to each access request provided by the mobile unit.

Abstract: A secure data transmission utility system which provides the ability to transmit any data from point A to point B across a data network or an Internet network without the possibility of being “hacked” is disclosed. The data being transmitted may be (but is not limited to) data such as digital, graphical, image, multi-media, stream or any other type of computing information. This utility system spans multiple media and computing device types. The data being transmitted is scrambled into unique pieces which constantly change structure and content between transmissions. The data being transmitted is also translated into randomly generated computer languages only decipherable by the secure data transmission utility system. The secure data transmission utility system also implements a series of one-way communications secured by controlled servers. The secure data transmission utility system is also scalable to any desired security level or computing application.

Abstract: A TCP 2003 is terminated in an intermediate driver 2006 within a gateway device 20, a TCP 3003 is terminated in an intermediate driver 3006 within a gateway device 30, and a frame is transferred between the intermediate drivers with a method not causing a congestion control such as a UDP. Besides, an SSL session is constructed between an SSL 2002 and an SSL 3002, and upon completing construction of the session, a public key and a secret key are sent by means of an Ethernet frame from a processing speed acceleration engine control to a processing speed acceleration engine. Thus, the gateway device transfers the frame not through a CPU but by employing the processing speed acceleration engine within an NIC in later communication between a terminal 21 and a server 31.

Abstract: Provided is a method for generating indirect trust binding between peers in a P2P network that allows communication and interaction between peers with trust even without an integrated processing server. In the method, a source peer transmits an initialization request message to a destination peer to receive a session identifier of the destination peer from the destination peer. The source peer arbitrarily selects a relay peer and then encrypts and generates indirect trust binding to the destination peer through the relay peer. The generation result of the indirect trust binding is analyzed, and trust of the destination peer is measured. The method allows the source peer to encrypt and generate the indirect trust binding to the destination peer even without a separate integrated processing server, and to be aware of trust of the destination peer.

Abstract: A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and then shared using a secret sharing algorithm to generate a collection of key shares. The private data may be encrypted using the key, resulting in a ciphertext. The ciphertext may then be broken into ciphertext fragments using an Information Dispersal Algorithm. Each key share and a corresponding ciphertext fragment are provided as input to a committal method of a probabilistic commitment scheme, resulting in a committal value and a decommittal value. The share for the robust computational secret sharing scheme may be obtained by combining the key share, the ciphertext fragment, the decommittal value, and the vector of committal values.

Abstract: Systems and methods that allow for transmitting qubits and classical signal over the same channel of an optical telecommunications network that includes an optical fiber. The method includes sending the qubits of wavelength ?S over a quantum optical path that includes the optical fiber during a time interval ?T0 when there are no classical optical signals of wavelength ?S traveling over the optical fiber. The method also includes sending the classical signals over a classical optical path that includes the optical fiber, wherein the classical signals are sent outside of the time interval ?T0 to avoid interfering with the qubit transmission. Systems and methods for using the present invention to form quantum key banks for encrypting classical signals sent over the optical telecommunications network are also disclosed.

Abstract: An improved approach to public key passing is provided to inhibit man-in-the-middle (MITM) attacks during an exchange of public keys over one or more public networks. In one embodiment, a method for securely passing public keys includes encrypting a first user public key, wherein the first user public key is associated with a first user device. The method also includes passing the encrypted first user public key to a first gateway server over a secure communication link. The method further includes receiving an encrypted second user public key from the first gateway server over the secure communication link, wherein the second user public key is associated with a second user device, and wherein the second user device is associated with a second gateway server. In addition, the method includes decrypting the second user public key.

Abstract: The invention is a system and method for establishing and maintaining network communication between two or more mobile vehicles without broadcasting an SSID to the world. The invention uses WiFi as the communication protocol, but provides for an alternate method of providing secure SSIDs. The alternate method provides a means for insuring the establishment and operation of secure data communication between two or more properly equipped vehicles while limiting the opportunity for a non-authorized user to intercept an SSID.

Abstract: A method of producing a security code by means of a programmable user device is described. The security code produced represents in itself both the user and the user device. In one embodiment, a service provider code representing a service provider by whom the user is registered with his/her user name forms an addition to the basis, on which the security code is calculated. The security code is useful for several security applications, such as for user authentication, and for local storage of information, as well as for signing and encryption/decryption of information to be exchanged between the user and a service provider, or vice versa.

Abstract: A communication system uniquely identifying a communication partner within a predetermined coverage area and transmitting and receiving information in a predetermined protocol, includes a device and an information processing apparatus with one performing wireless communication with the other within the predetermined coverage area. The device includes a random number generating unit, a device secret key storage unit, a communication ID transmitting unit, and a device transmitting and receiving unit. The information processing apparatus includes an apparatus encryption unit, an apparatus secret key storage unit, a communication ID storage unit, a random number acquisition unit and an apparatus transmitting and receiving unit.

Abstract: A key management facility for a communication network masquerades as a first device within the communication system during an Internet Key Exchange (IKE) negotiation with a second device within the communication system. The key management facility establishes, on behalf of the first device, a security association with the second device using IKE. After the negotiation is complete, the key management device provides information regarding the security association to the first device such that the first device can engage in an Internet Protocol Security-protected communication with the second device.

Abstract: A traitor tracing system generates a hypothesized model of the circumvention device that models a hypothesized set of device keys compromised by the circumvention device. The system iteratively invokes a subset tracing system to identify a compromised device key until substantially all the compromised device keys in the set of compromised device keys are identified so as to disable the circumvention device. A subset tracing system generates a circumvention device model that models behavior of a circumvention device using prior knowledge and The system iteratively selects and applies to the circumvention device a test based on the hypothesized model and the circumvention device model and receives a response from the circumvention device indicating a success of the test in playing protected content on the circumvention device.

Abstract: A secure software package for original equipment manufacturers to run in electronic devices in order to access and dynamically decrypt encrypted audio video or other content from a memory storage device such as a memory card, optical or hard disk such that the user interface of the device need only send simple commands and the decrypted content is output.

Abstract: Disclosed is an apparatus for encrypting/decrypting a real-time input stream. The present invention includes a control unit, a key schedule unit, and a block round unit. Accordingly, the present invention realizes the encryption and decryption of AES algorithm in a manner of hardware, thereby enabling to carry out the encryption and decryption of the real-time input stream real-timely. And, the present invention finds the key for encryption or decryption of one block every round when realizing the encryption and decryption of the AES algorithm in a hardware manner, and then outputs the found keys to the block round unit. The present invention reduces the size of the key register required for the encryption/decryption of block data, thereby enabling to reduce a size of hardware as well as cost of product.

Abstract: A system and method for the retrieval and transfer of encrypted content from a failed set-top box by a content transcription device. When content is recorded to the storage device of a set-top box, the content is encrypted with a content instance key. This content instance key is encrypted with the public key of the set-top box and a duplicate of the content instance key is encrypted by another public key other than the public key of the set-top. In the event the set-top fails, the encrypted content on the storage device may be retrieved from the storage device by decrypting the duplicate content instance key with the private key that corresponds with the public key that encrypted the duplicate of the content instance key.

Abstract: A method and system for providing communication over arbitrary distances with a desired probability of security is disclosed. In accordance with one embodiment of the invention shares of a random key are encoded, the random key for effecting communication of a message through a network employing a cryptographically strong forward security system having a limited effective communications distance. A distributed re-randomization of the encoded shares is then effected at a plurality of intermediate network nodes.

Abstract: Key management in a digital cinema system (10, 100 and 1000) occurs by encrypting a feature key associated with encrypted content with a transmission key exchanged with a decryption module (60, 601, 602, 6001, 6002, 6003 and 6004), that serves to decrypt encrypted content. The encrypted feature key undergoes transmission to the decryption module to enable decryption of the encrypted content. In this way, the decryption module will only have the capability of decrypting content based on that module's own key.

Abstract: Disclosed is a system and method for method of modeling head-related transfer functions HRTFs specific to an individual. The method includes constructing a database of a plurality of HRTFs for a multitude of directions and for a plurality of individuals, and using an artificial neural network to construct a model from the database. The method further comprises measuring an HRTF for a given individual for a few selected directions, applying the model to the measurements, and calculating the individual's HRTF in the multitude of directions based on the application of the model.

Abstract: The disclosed BTSC encoder includes a left high pass filter means for receiving a digital left channel audio signal and for digitally high pass filtering the digital left channel audio signal and thereby generating a digital left filtered signal; a right high pass filter means for receiving a digital right channel audio signal and for digitally high pass filtering the digital right channel audio signal and thereby generating a digital right filtered signal; a matrix means for receiving the digital left and digital right filtered signals, and including means for summing the digital left and digital right filtered signals and thereby generating a digital sum signal, and including means for subtracting one of the digital left and digital right filtered signals from the other of the digital left and digital right filtered signals and thereby generating a digital difference signal; a difference channel processing means for digitally processing the digital difference signal; and a sum channel processing means for d

Abstract: A signal processing system for use in a multi-channel audio system. The signal processing system includes a first channel having a first audio signal. A second channel is included that has at least a second audio signal. A processor is included that is responsive to a signal level threshold in the first channel, such that at the threshold and above the threshold, a portion of the first channel audio signal is mixed into the at least a second audio channel.

Abstract: An earpiece is provided that can include an Ambient Sound Microphone (ASM) to measure ambient sound, an Ear Canal Receiver (ECR) to deliver audio to an ear canal, an Ear Canal Microphone (ECM) to measure a sound pressure level within the ear canal, and a processor to produce the audio from at least in part the ambient sound, actively monitor a sound exposure level inside the ear canal, and adjust a level of the audio to within a safe and subjectively optimized listening level range based on the sound exposure level. An audio interface can deliver audio content from a media player. The processor can selectively mix the audio content with the ambient sound to produce the audio in accordance with a personalized hearing level (PHL) to permit environmental awareness of at least one distinct sound in the ambient sound. Other embodiments are disclosed.

Abstract: An audio enhancement system for compensating for ambient noise in a listening environment, comprises an audio system that produces an electrical sound signal and generates a sound output from the electrical sound signal. A sensor (e.g., a microphone) senses a total sound signal representative of the total sound level in the listening environment, including the sound output from the audio system and the ambient noise within the listening environment. A processing unit responsive to the total sound signal and the electrical sound signal extracts from the total sound signal an ambient noise signal representative of the ambient noise in the listening environment. A controller responsive to the ambient noise signal performs a linear predictive coding (LPC) analysis and generates a control signal, which is input to an equalizer to adjust the sound output of the audio system in order to compensate for the ambient noise level.

Abstract: An device and method of generating environmental reverberation effects for digital audio signals is presented. The device includes a reverberation controller. The reverberation controller pre-processes one or more predetermined characteristics of a first audio signal to produce a pre-processed signal and generates a plurality of delayed outputs from the pre-processed signal, each output having a predetermined delay. The reverberation controller also produces a plurality of reflection outputs from the plurality of delayed outputs and combines the plurality of reflection outputs to produce a second audio signal having a desired reverberation response.

Abstract: An acoustic-electronic stethoscope that filters aberrant environmental background noise. The chest piece employs acoustic vents to inhibit resonant amplification of noise and contains a diaphragm design that focuses vibrational energy to a raised ring, which transfers and further focuses the energy to a piezoelectric polymer sensor with dual elements. The ensuing electrical signal is then preamplified with the low frequency sound, comprising predominantly background noise, filtered out. The stethoscope contains a binaural head set and output jack for down loading of data. Furthermore, areas normally subject to exposure and damage to water, such as the chest piece and headset, are water-tight.

Abstract: The present invention provides a system and method for simulating medical conditions to facilitate medical training, that utilizes a stethoscope comprising an earpiece and a headpiece and configured to transmit information indicative of a medical condition, and a triggering device configured to activate the transmission of the information.

Abstract: A feed forward technique is used to provide active noise reduction within an ear canal blocked with a passive noise reducing apparatus such as an earplug. Sound outside the ear is monitored and converted into an electronic signal that is opposite in phase from the anticipated sound leakage in the ear canal. The electronic signal is converted back into sound and fed forward into the ear to provide a cancellation effect with the actual sound leakage.

Abstract: A wireless audio system is provided for use with home audio speakers and includes a transmitter coupled to a stereo receiver and a plurality of speaker stands with built-in receivers. The speakers are placed on the speaker stands and coupled to the receivers.

Abstract: A speaker system employs a first device and a second device where one of the first device and the second device is a speaker. The first device has a supporting surface, from which a positioning element protrudes and forms a distal end. The positioning element tapers from the supporting surface to a smaller dimension at the distal end. The second device has a cavity receiving the positioning element. In one embodiment, the first device has a first electrical contact positioned adjacent to the positioning element and the second device has a second electrical contact engaging the first electrical contact. In another embodiment, the first and second device are rotationally repositionable relative to one another, and an electrical connection is created between the first device and the second device when the cavity receives the positioning element at more than one relative rotational position between the first device and the second device.

Abstract: The present invention provides for methods and systems for digitally processing an audio signal. Specifically, the present invention provides for a headliner speaker system that is configured to digitally process an audio signal in a manner such that studio-quality sound that can be reproduced.

Abstract: An apparatus and a muting circuit. The apparatus comprises an amplifier, a mute circuit, a pull-down circuit, and a power detection circuit. The amplifier receives a power supply voltage and a common mode voltage, and amplifies an audio input signal to generate an audio output signal. The mute circuit, coupled to the amplifier, conducts the audio output signal to about ground level upon receiving a mute signal. The pull-down circuit, coupled to the amplifier, pulls the common mode voltage to about ground level upon receiving a pull-down signal. The power detection circuit, coupled to the mute circuit and the pull-down circuit, detects power-up or power-down of the power supply voltage, and generates the mute signal and a pull-down signal according to the power-up or power-down operation.

Abstract: It is possible to surely protect the user's ear from a sudden large volume and enable the user to surely and clearly hear a sound as information to be alarmed. In case an incoming call signal is received when the user holds a mobile telephone (1) at the speaking position and listens to a message output from an audio output unit (8), a control unit (17) makes a vibrator (27) generate a vibration as an alarm to call user's attention. At the timing when the user has sufficiently separated the mobile telephone (1) from his/her ear, the control unit (17) makes the audio output unit (8) output a ringtone of large volume. Thus, it is possible to surely protect the user's ear from a sudden large volume. Even when a music composition to notify the receipt of incoming call signal is used as a ringtone, the user can surely and clearly hear the sound as information to be alarmed.

Abstract: A micromini condenser microphone having a flexure hinge-shaped upper diaphragm and a back plate, and a method of manufacturing the same are provided.

Abstract: An electret condenser microphone is configured such that a substrate 12 and components stacked on the substrate 12 are fixed in a capsule 2 shaped like a cylinder. The electret condenser microphone includes a top plate 30 having sound holes 31, terminal electrode patterns 11 are provided on the substrate 12, the capsule 2 includes an inner flange portion 21 stretching to the inside of the electret condenser microphone and a curled portion 13 bent inward, the substrate 12 is positioned at the inner flange portion 21, the terminal electrode patterns 11 protrude outside the inner flange portion 21, and the top plate 30 is positioned at the curled portion 13.

Abstract: A microphone arrangement comprises a stack arrangement (1) which comprises a first semiconductor body (10) having a microphone structure (13) and a second semiconductor body (80). The second semiconductor body (80) comprises a first main face (81) on which an integrated circuit (83) is arranged and a second main face (82) which faces the first semiconductor body (10).

Abstract: At least one exemplary embodiment is directed to a new spatial audio enhancing system including a novel Adaptive Sound Upmixing System (ASUS). In some specific embodiments the ASUS provided converts a two-channel recording into an audio signal including four channels that can be played over four different loudspeakers. In other specific embodiments the ASUS provided converts a two-channel recording into an audio signal including five channels that can be played over five different loudspeakers. In even other specific embodiments the ASUS provided converts a five-channel recording (such as those for DVD's) into an audio signal including eight channels that can be played over eight different loudspeakers. More generally, in view of this disclosure those skilled in the art will be able to adapt the ASUS to process and provide an arbitrary number of audio channels both at the input and the output.

Abstract: Provided herein is a device for wirelessly communicating with hearing assistance devices. According to various embodiments, the device includes a first interface for communicating with a programmer and a second interface for wirelessly communicating with a hearing assistance device. The second interface is adapted to receive a plurality of communication modules. Each of the modules is adapted for communication with at least one specific type of hearing assistance device. The device includes a housing for the first interface, the second interface, and electrical connections between the interfaces. The housing adapted to be worn around the neck of a person wearing the hearing assistance device.

Abstract: In one aspect, a programmable hearing apparatus is provided to allow a convenient programming of the hearing apparatus with minimal effort. To this end, programming data is stored in a transponder. The transponder is activated by the hearing apparatus. Consequently, programming data is transmitted from the transponder to the hearing apparatus.

Abstract: A rechargeable battery is provided comprising a flexible elongate electron conductive core (1) surrounded by a first electrochemically active layer (2), and a second electrochemically active layer (4), separated by a separation layer (3) and where an electron conducting element (5) contacts the outer surface of the second electrochemically active layer, whereby at least one of the two electrochemically active layers (2, 4) and the separation layer (3) are comprised of thin-film layers. Further a hearing aid is provided wherein a battery comprising thin film layers is provided. Such a battery may be curled or wound to accommodate an irregular space inside the hearing aid.

Abstract: Hearing aid to be fitted deep in the auditory canal. Seen from the tympanum this comprises a fitting part which is adapted to the auditory canal concerned. Inside this is a sleeve, in which the electronics part is arranged with a speaker part facing the tympanum. On the other side is a microphone part. A battery connecting to an electronics part and accommodated in the sleeve is fitted. There are suitable contacts. The battery can be pushed through the open end of the sleeve, which is preferably flexible, towards the electronics part. As a result of this, a particularly compact construction can be provided which also serves as sound inlet. By lengthening the sleeve, interfering sound influences can be reduced further.

Abstract: A semi-permanent hearing device is disclosed which is adapted to be completely positioned within the ear canal of an individual for long-term use. The device comprises a sealing retainer substantially positioned in the bony region of the ear canal and a core assembly including a receiver assembly coaxially positioned within the sealing retainer. When the device is inserted into its completely-in-the-canal position, the core assembly extends from the sealing retainer to the cartilaginous region of the ear canal in a non-occluding fashion, thereby minimizing interference in the ear canal. The hearing device is inserted in the ear canal past the aperture thereof and in close proximity to the eardrum by a physician or a hearing aid dispenser.

Abstract: Outputs of a laser and an inclinometer are used to figure adjustments to a sound producing device's position, where both the laser beam of the laser and an output from the inclinometer characterize a general direction of sound produced by the sound producing device. The laser beam can be one or more colors or patterns each characterizing the general direction of sound produced by the sound producing device. A stadium can have many speaker housings each including a speaker, the laser, and the inclinometer. Each speaker housing is mounted on, and remotely adjustable with respect to, an structural member as to general direction of sound emitted from the speaker housing into the area for stadium seating. The inclinometer's output can be rendered by a monitor seen by an audio engineer who also uses the laser beam's direction to make adjustments to the position of the speaker housing relative to its structural member.

Abstract: A loudspeaker system has a front loudspeaker enclosure (30) having at least one first loudspeaker (20) and a rear loudspeaker enclosure (50) having at least one second loudspeaker (60). The rear loudspeaker enclosure (50) is in the form of a bandpass enclosure.

Abstract: A windguard for a microphone includes an acoustic inlet at a downstream end and at least one pressure-relief port upstream of the acoustic inlet The windguard has a base, a skirt depending from the base, and a first hood projecting from the base. The base and skirt provide space to accommodate the microphone. The first hood extends from an upstream end of the base to the downstream end and includes the acoustic inlet at the downstream end. The pressure-relief port(s) is located on the first hood at the upstream end and is protected by a second hood.

Abstract: A headset device capable of switching signal transmissions includes a headset plug and a switch unit. The headset plug includes a plurality of signal interfaces for transmitting a plurality of signals. The switch unit is coupled to the headset plug and is used for modifying an order in which the plurality of signal interfaces transmits the plurality of signals according to a control signal.

Abstract: A wireless earphone is retained in a user's ear by engaging a helix and includes a body from which an earphone plug extends and a speaker bar extending from the body. A spherical connection if formed between the body and the plug and is clamped by a resilient fork formed at a first end of a support rod. The support rod has a second end forming a helix engaging portion that is engageable with the helix. The support rod is rotatable about a center of the spherical connection to change distance and angle between the helix, engaging portion and the earphone plug, whereby when a user puts the helix engaging portion against the helix and move the body to fit the earphone plug into an auditory canal of the ear, the wireless earphone is stably retained on the ear.

Abstract: The invention is directed to audio enhanced thermal insulating hand protectors, such as decorative and non-decorative oven mitts or pot holders, which comprise a thermal insulating hand protector, audio playback circuitry integrated between internal layers of the thermal insulating hand protector, optional decorative theme-based design on the exterior of the hand protector, and theme-based audio playback segments that correspond to the optional decorative theme-based exterior of the hand protector. The theme may relate to any field of interest, such as birthdays, anniversaries, Valentine's Day, Christmas, etc. In the preferred embodiment of the invention, the audio enhanced thermal insulated hand protector is a decorative oven mitt with audio playback segments that correspond to the visual decorative theme, and thereby enhance the experience of using thermal insulating hand protectors.

Abstract: Methods and apparatus provide for: a speaker frame having a peripheral flange defining a central axis and a plurality of studs extending from the peripheral flange parallel to the axis; and a carrier plate having an aperture through which at least one of: a portion of a speaker may extend or through which the speaker may direct acoustic energy, a plurality of receiving elements disposed about the aperture, each receiving element having at least one ramped surface extending generally tangentially with respect to a perimeter of the aperture and rising in a direction parallel to the central axis, wherein the studs engage and slide along the ramped surfaces when the speaker frame is coupled to the carrier plate and rotated to lock the speaker frame to the carrier plate.

Abstract: A wide dispersion speaker system 1 comprises a cone type speaker unit 2, and a restricting element 10A. The restricting element 10A is provided with a center hole 11 at a center section thereof, and a peripheral hole 12 located outward relative to the center hole 11. The restricting element 10A has an annular sound travel inhibiting portion 19 positioned radially outward relative to the center hole 11 and radially inward relative to the peripheral hole 12. An outer end in a radial direction of the sound travel inhibiting portion 19 is positioned at a substantially middle point between an outer end in the radial direction of the center hole 11 and an outer end in the radial direction of the peripheral hole 12 or positioned radially outward relative to the substantially middle point.

Abstract: An electromagnetic transducer such as an audio loudspeaker, whose diaphragm assembly and motor both have a highly elongated shape in which the long dimension is at least 3× greater than the short dimension. The diaphragm may be obround, and the motor's magnetic air gap may comprise a pair of elongated, parallel, linear gaps. A novel “boxcar” device is used to hold the bobbin and voice coil in an obround shape, maintaining the parallel, linear shape of their elongated sides. The lower suspension may be disposed only at the ends of the motor, enabling the narrowest possible configuration.