Ericsson Gmbh

Altera Corporation

Sensus Spectrum, LLC

Trampas B Stern

Charles W Kurak, Jr

Marco Jacobs

Doina Petrescu

Dan Searles

Matthew Justin Murray

Karl W Rabe

Joseph Anthony Profeta, Jr

Joseph Anthony Profeta

A magnetic flow meter includes a magnetic flow transducer positioned to sense the flow of water through the flow meter. The magnetic flow transducer includes first and second electrodes positioned on opposite sides of a measuring channel. First and second magnetic pole pieces are positioned on opposite sides of the measuring channel and orthogonal to the first and second electrodes. The magnetic pole piece includes extending tab portions that are located adjacent to the first and second electrodes on opposite sides of the first and second electrodes. The extended tabs formed on each of the first and second magnetic pole pieces reduce the induced voltage within the electrodes to increase the accuracy of the measurement taken by the magnetic flow transducer.

Inductive flow meter including extended magnetic pole pieces

Techniques for performing the processing of blocks of video in multiple stages. Each stage is executed for blocks of data in the frame that need to go through that stage, based on the coding type, before moving to the next stage. This order of execution allows blocks of data to be processed in a nonsequential order, unless the blocks need to go through the same processing stages. Multiple processing elements (PEs) operating in SIMD mode executing the same task and operating on different blocks of data may be utilized, avoiding idle times for the PEs. In another aspect, inverse scan and dequantization operations for blocks of data are merged in a single procedure operating on multiple PEs operating in SIMD mode. This procedure makes efficient use of the multiple PEs and speeds up processing by combining two operations, inverse scan (reordering) and dequantization, which load the execution units differently. The reordering loads mainly the load and store units of the PEs, while the dequantization loads mainly other units. By combining the inverse scan and dequantization in an efficient VLIW packing performance, processing gain is achieved.

Methods and apparatus for video decoding

Methods and apparatus for multiple stage video decoding

A piezoelectric speaker is provided which provides a magnetic field to couple the speaker to a hearing aid coil. The magnetic field induces a current in the hearing aid coil as it appears as a time varying magnet field to the coil. The time varying magnetic field is preferably proportional to the movement of a piezoelectric member of the piezoelectric speaker so as to induce a current in the hearing aid coil proportional to this movement. Such a magnetic field may be provided by connecting a magnetic material to the piezoelectric speaker such that motion in the speaker results in motion of the magnetic material, preferably at the position of maximum displacement of the speaker. Thus, the piezoelectric speaker may provide hearing aid compatibility.

Hearing aid compatible piezoelectric speaker

The present invention includes a system for testing the acoustical performance of a cellular communication system and includes a field unit such as a cellular phone that can both send and receive signals to and from a base station. The base station is connected to a testing computer via digital communication lines for transmitting the test data. The system prevents the signal between the base station and the testing computer from being transferred through an analog central office that may cause unknown noise to be inadvertently included within the signal and prevent accurate testing and calibration of the communication system. Audio messages may be sent from the field unit to the testing computer for testing, or the audio messages may originate at the testing computer and then sent to the field unit. The system further provides for results from the testing to be sent to a technician at the field unit to allow for evaluating and making any changes within the communication system.

Acoustic testing system and method for communications devices

An accessory unit for operation of a cellular telephone, including a casing, a microphone mounted to the casing, a first sound emitting element mounted to the casing for providing an audible alert signal, and a second sound emitting element mounted to the casing for providing voice communication. A vibrating element is mounted to the casing for providing a mechanical alert signal, and a connector port is connectable to the telephone for communicating received sound to the telephone and receiving voice communication from the telephone. The connector port also receives actuating signals for both the first sound emitting element and the vibrating element from the telephone. A gasket is between the microphone and both the second sound emitting element and the vibrating element, and selectively has a first stiffness when the second sound emitting element is providing voice communications, and a second stiffness greater than the first stiffness when the vibrating element is providing a mechanical alert signal. The gasket is a rheological material, which may be an electro-rheological material or a magneto-rheological material, and an actuator controls the stiffness of the gasket. The unit connector port is also adapted to receive power from a connected cellular telephone.

Accessory allowing hands-free operation of a cellular telephone

Disclosed is a method and apparatus for automatically limiting the amplitude output of a speaker for a mobile telephone when the telephone is in the active mode of operation. In a preferred embodiment, a tuned cavity in the stand-by mode operates in conjunction with the speaker to provide a higher than normal acoustic output. When the tuned cavity is moved away from the speaker, the acoustic output returns to the level equal to the speaker's normal output. In an electronic embodiment, a device switching the mobile telephone from the stand-by mode to the active mode also enables an amplitude limiter which limits the maximum acoustic output of the speaker to a level sufficient to prevent hearing discomfort or damage.

Dual use speaker for both voice communication and signalling

A battery pack is provided for use with a mobile phone. The battery pack includes audio signal power amplifier circuitry with an inductive coil. The inductive coil boosts the magnetic field strength of the audio signal received by the phone, so that a tele-coil circuit for a hearing aid can be used to pick up the audio signal received by the phone. Consequently, the picked up audio signal can be discerned from the magnetic noise created by the phone. Also, the use of the battery coil allows a tele-coil pick up of the audio signal even if the phone has a speaker that does not generate an appreciable magnetic field.

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Raleigh, NC, United States of America

Trampas B Stern