At&t Bell Laboratories

Lucent Technologies Inc.

At+t Corp.

At&t Information Systems Inc.

Bell Telephone Laboratories

American Telephone and Telegraph, Co.

Other

Avaya Technology LLC

At&t Ipm Corp.

Fitel USA Corporation

At&t Company

American Telephone and Telegraph Company; At&t Information Systems

American Telephone and Telegraph Company and At&t Information Systems

Gary J Grimes

Lee L Blyler

Lawrence J Haas

Charles J Sherman

James R Bortolini

Anthony J Serafino

Richard J Coyle, Jr

Scott E Farleigh

George J Shevchuk

Jean S Nyquist

Norman Roger Lampert

Bryan Scott Moffitt

Lee Landis Blyler, Jr

Louis R Goke

Robert William Filas

Stephen R Peck

James J Ferenc

Jon R Sauer

Mark Jeffrey Foladare

Greg E Blonder

Shelley Betty Goldman

Roy Philip Weber

David Phillip Silverman

Leonard G Cohen

John C Moran

Jerry Max Anderson

Arthur Wallace Carlisle

William R Holland

John S Helton

Allen L Larson

Robert William Gebhardt

William K Honea

Christopher Lanzafame

Robert M Lien

Richard James Coyle, Jr

Thomas M Quinn

Gabe A Sellers, Iii

Edward B Morgan, Jr

Emiel Ysebaert

An arrangement for cooling an electronic assembly includes a circuit board, an enclosure member and at least one electromechanical actuator. The circuit board has a first surface, a second surface, and at least a first heat-generating element secured to the first surface. The circuit board further comprises at least one aperture extending between the first surface and the second surface. The enclosure member is secured to the circuit board so as to form a fluid tight barrier of a compartment defined at least in part by the enclosure member. The compartment includes a first subcompartment defined at least in part by the first surface and the enclosure member and a second subcompartment defined at least in part by the second surface and the enclosure member. The at least one electromechanical actuator is secured within the fluid type barrier and is operable to generate a flow movement in the direction of the at least one aperture when liquid is disposed in the fluid tight barrier.

Arrangement for liquid cooling an electrical assembly using assisted flow

The present invention relates to fiber optics. In this regard, embodiments of the invention may be construed as providing interconnection systems for optical media. An embodiment of the present invention includes an optical circuit pack assembly, an optical circuit board, a child board, an optical device having a front end and a back end, an optical connector, and an optical connector mechanism. As such, the optical device is mounted on the child board and the child board is in turn slidably affixed to the optical circuit board. The optical connector is mounted on the optical circuit pack assembly such that as an operator inserts the optical circuit board into the optical circuit pack assembly, the optical connector and optical device are obscured from view. Operation of the optical connector mechanism causes the child board to move along a longitudinal axis of the child board, thereby causing the optical connector and the optical device to become operably engaged.

Optical connector mechanism

A telephone network arranged to give a telephone call placed to a called party's personal telephone number a particular call treatment that is selected as a function of the particular one of a plurality of predefined areas in which the called party is determined to be located, each of the plurality of predefined areas having at least two telephone stations with different telephone numbers located therein. The location of the called party is determined from the location of a two-way pager associated with the called party as detected by a paging antenna, e.g., tower, of a conventional two- way paging system that was not necessarily installed for use in completing telephone calls. For each personal telephone number, a table is stored associating a call treatment with one or more of the areas. The particular call treatment associated with an area is applied to calls to the personal telephone number when he is within that area. The associations of particular call treatments with respective ones of the areas is under control of the called party. The particular call treatments may include: (a) routing of the call to a particular wired telephone located within the area; (b) routing the call to a particular wired telephone outside of the area, (c) routing the call to a particular wireless telephone, (d) routing the call to a sequence of wired and/or wireless telephones within or outside of the area until the call is answered, and (e) routing the call to an automated answering platform. A default treatment may also be stored for handling calls that are placed to the called party when the called party is not within any area for which a call treatment is associated.

Call redirection system

Finishing the end of a plastic optical fiber by a device having a semi-rigid or rigid base, a solvent liner for absorbing and holding a solvent, and a re-attachable pull-off cover for keeping the solvent from evaporating when not in use. To polish the end of a plastic optical fiber, the cover is peeled off, the end of the optical fiber is contacted with the solvent liner such that solvent is transferred to the end of the optical fiber, the cover may be reapplied (using a pressure sensitive adhesive integral to either the bottom of the peel-off cover or the top of the liner), the excessive solvent, if any, is removed by using an appropriate swab, and the end of the plastic optical fiber is allowed to return to its normal state. The solvent temporarily dissolves the surface layer of the end of the optical fiber. The resulting surface tension automatically polishes the end of the optical fiber.

Disposable device for end finishing of plastic optical fiber

Allowing a selective retrieval of messages based on message characteristics. The message characteristics are originating telephone number, specific caller, originating area code, originating country code, calls within a time period, and calls not resulting in a message. In addition, messages can be searched for a range of telephone numbers, range of area codes, range of country codes.

Selective remote access of an audio messaging system

The present invention is directed to a telephone billing management method for cellular telephones. The objective is to provide the user of a cellular telephone a cost accounting and management tool. The amounts of various classes of service used in the current billing period are downloaded and displayed at the user phone terminal, for instance on the wireless handset. Specifically, cumulative billing information for the present billing period is downloaded and displayed at the user's location during the call set up-period signalling period. The charge rate for the current call can also be downloaded. Once the call is stabilized, the duration (air time) and cost of the present call can be calculated and displayed in real time. Thus, for management purposes, the user has access to the provider's information on all charges up to the present call and the duration and cost of the present call can be calculated and displayed in real-time without further burden on the provider.

Cellular telephone billing management system

An interconnection system is shown that enables an optical circuit board , having a number of optical devices , to be easily connected to and disconnected from a backplane . The optical devices are positioned along a side edge of a printed wiring board and are adapted to interconnect with a like number of optical connectors that are arrayed on the backplane in a row or column. Each optical plug is held in a holder , which is retained in backplane by a clip . Each of the optical connectors is a plug that includes a ferrule , which encloses an optical fiber and projects from one end of the plug. Each of the edge-mounted optical devices includes a jack receptacle at its front end and has a cavity that is shaped to receive the optical plug. All of the jack receptacles are similarly shaped. Each cavity further includes a boss for receiving the ferrule. The plugs and jack receptacles are arranged to engage, but not interlock with, each other. The optical devices include two or more downward-extending pins that are received in corresponding holes in the printed wiring board for accurate positioning. Illustratively, optical device includes a jack receptacle in its front-end portion and its back-end portion ; whereas optical device includes a jack receptacle in its front-end portion and one or more transducers , for converting between electrical and optical signals, in its back-end portion

Interconnection system for optical circuit boards

Detecting the presence of progress tones or progress audio messages and converting these tones or audio messages to a text form that is then displayed on a wireless telephone. This capability frees the user of the wireless telephone from having to place the wireless telephone to their ear and then, lower it to actuate the keypad when contacting a service provided by a remote communication system. A digital signal processor (DSP) is utilized to detect the progress tone and to convert audio messages to text using speech to text techniques. The operations of the DSP are controlled by the user performing operations on the keypad of the wireless telephone.

Wireless telephone for visually displaying progress messages

Finishing an end of a plastic optical fiber by ablating the end of the plastic optical fiber by utilizing an Excimer laser so that the end of the optical fiber can be used in a optical connector. A high powered ultraviolet beam of light from the laser is absorbed by the end of the fiber and ablates the first few microns of the end face of the fiber. This process removes residual cracks and fissures to flatten the end of the fiber for use in the optical connector. The optical fiber is then ready to make a low loss interface with a source, a detector, or another optical fiber.

End finishing of plastic optical fibers using laser ablation

An arrangement for cooling an electronic assembly includes a circuit board and an enclosure member. The circuit board has a first surface, a second surface, and at least a first electronic component or other heat-generating element secured to the first surface. The enclosure member is secured to said circuit board so as to form a fluid tight barrier of a compartment defined at least in part by said enclosure member. Such compartment includes a first subcompartment defined at least in part by said first surface and said enclosure member and a second subcompartment defined at least in part by said second surface and said enclosure member. The circuit board further includes at least one aperture extending between the first surface and the second surface such that the first subcompartment is in fluid communication with the second subcompartment.

Arrangement for cooling an electrical assembly

Fabricating graded index plastic optical fiber by diffusing a high molecular weight dopant within a step index plastic optical fiber after the step index plastic optical fiber has been drawn from a preform using a conventional draw tower in a first embodiment. Also, the step index plastic optical fiber may be fabricated by extruding one material circumferentially around another material, e.g., by use of a concentric nozzle. The dopant is diffused after the drawing or extruding of the step index plastic optical fiber by heating the plastic optical fiber to a temperature that causes a high rate of diffusion state while measuring the transmission bandwidth of the plastic optical fiber. When the predetermined specified transmission bandwidth is measured, the plastic optical fiber is immediately returned to an ambient temperature. In addition, the plastic optical fiber may be gradually heated to an equilibrium temperature that is just below the temperature required to produce the high rate of diffusion state. Once the equilibrium temperature has been achieved, additional heating is carried out to raise the temperature to that required to produce the high rate of diffusion and the transmission bandwidth is tested.

Fabricating graded index plastic optical fibers

An arrangement for electromagnetically shielding a circuit carrying substrate includes first and second shielding members and a plurality of elastically deformable shielding connectors. The first shielding member has first and second dimensions exceeding first and second dimensions defined by the circuit and is disposed on a first side of the circuit. The second shielding member also has first and second dimensions exceeding first and second dimensions defined by the circuit and is disposed on a second side of the circuit. The first and second shielding members define at least one slot therebetween. Each of the plurality of shielding connectors is both plastically deformable and electrically conductive, and furthermore extends between the first shielding member and the second shielding member. The plurality of shielding connectors are disposed within and throughout said slot and spaced apart by a distance that is less than one-fourth the wavelength of an effective operating frequency of the circuit.

Electromagnetic shielding method and apparatus

An arrangement for enclosing a fluid includes a circuit board and an enclosure member. The circuit board includes an electronic component secured thereto. The enclosure member is secured to the circuit board such that the enclosure member and the circuit board cooperate so as to create a fluid tight barrier of a compartment defined by the circuit board and the enclosure member.

Arrangement for enclosing a fluid and method of manufacturing a fluid retaining enclosure

An arrangement for cooling an electronic assembly includes a circuit board having a primary circuit board portion and a secondary circuit board portion integrally secured to the primary circuit board portion. The arrangement also includes an enclosure member secured to the circuit board so as to create a fluid tight barrier of a compartment defined at least in part by the enclosure member. The arrangement further includes a first electronic component secured to the primary circuit board portion such that the first electronic component is located within the compartment. The arrangement also includes a second electronic component secured to the secondary circuit board portion such that the second electronic component is located outside of the compartment. The arrangement also includes a liquid disposed within the compartment such that the liquid is in a heat exchange relationship with the first electronic component. The arrangement also includes a gas in contact with the second electronic component such that the gas is in a heat exchange relationship with the second electronic component.

Method and arrangement for cooling an electronic assembly

The present noninvasive load and pressure sensing system makes use of a transparent pressure vessel that is filled with a compressible fluid, whose refractive index changes as a function of the pressure applied to the compressible fluid to redirect the path of a light beam that is transmitted through the transparent pressure vessel. An incident beam of coherent monochromatic light is applied to a transparent segment of a wall of the transparent pressure vessel, where this incident light beam is refracted by the compressible fluid contained in the transparent pressure vessel. The refracted light beam traverses the transparent pressure vessel and exits the transparent pressure vessel at a point along the opposite wall of the transparent pressure vessel as determined by the refractive index of the compressible fluid, which is determined by the pressure of the compressible fluid. The pressure of the compressible fluid is controlled by using a scale comprising a compressible bladder that is fluidically connected to the transparent pressure vessel. The weight placed on the scale varies the pressure of the compressible fluid and thus its refractive index. Thus, by measuring the exit point of the refracted light beam on the wall of the transparent pressure vessel the pressure, and thus the weight of the object placed on the scale, can be determined.

Noninvasive load and pressure sensor system utilizing the principle of

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Thornton, CO, United States of America

Gary J Grimes