| Patent application number | Description | Published |
|---|
| 20090310707 | TRANSMITTER AND METHOD FOR TRANSMITTING SOFT PILOT SYMBOLS IN A DIGITAL COMMUNICATION SYSTEM - A transmitter, channel coder, and method for coding and transmitting a sequence of symbols in a digital communication system utilizing soft pilot symbols. In one embodiment, the transmitter transmits a set of soft pilot symbols with higher reliability than the remaining symbols in the sequence by modulating the soft pilot symbols with a lower order modulation such as BPSK or QPSK while modulating the remaining symbols with a higher order modulation such as 16 QAM or 64 QAM. The transmitter shares the modulation type and location (time/frequency/code) of the soft pilot symbols with a receiver. Unlike traditional fixed pilots, the soft pilots still carry some data. Additionally, the soft pilots are particularly helpful in establishing the amplitude reference essential in demodulating the higher order modulation symbols. In another embodiment, soft pilot symbols are inserted by low-level puncturing of channel encoded bits and replacing the punctured bits with known bit patterns. | 12-17-2009 |
| 20090310708 | Transmitter and Method for Transmitting Soft Pilot Symbols in a Digital Communication System - A transmitter, channel coder, and method for coding and transmitting a sequence of symbols in a digital communication system utilizing soft pilot symbols. In one embodiment, the transmitter transmits a set of soft pilot symbols with higher reliability than the remaining symbols in the sequence by modulating the soft pilot symbols with a lower order modulation such as BPSK or QPSK while modulating the remaining symbols with a higher order modulation such as 16 QAM or 64 QAM. The transmitter shares the modulation type and location (time/frequency/code) of the soft pilot symbols with a receiver. Unlike traditional fixed pilots, the soft pilots still carry some data. Additionally, the soft pilots are particularly helpful in establishing the amplitude reference essential in demodulating the higher order modulation symbols. In another embodiment, soft pilot symbols are inserted by low-level puncturing of channel encoded bits and replacing the punctured bits with known bit patterns. | 12-17-2009 |
| 20090310715 | RECEIVER AND METHOD FOR PROCESSING RADIO SIGNALS USING SOFT PILOT SYMBOLS - A receiver and method for receiving and processing a sequence of transmitted symbols in a digital communication system utilizing soft pilot symbols. A set of soft pilot symbols are transmitted with higher reliability than the remaining symbols in the sequence by modulating the soft pilot symbols with a lower order modulation such as BPSK or QPSK while modulating the remaining symbols with a higher order modulation such as 16QAM or 64QAM. The receiver knows the modulation type and location (time/frequency/code) of the soft pilot symbols, and demodulates them first. The receiver uses the demodulated soft pilot symbols as known symbols to estimate parameters of the received radio signal. Unlike traditional fixed pilots, the soft pilots still carry some data. Additionally, the soft pilots are particularly helpful in establishing the amplitude reference essential in demodulating the higher order modulation symbols. | 12-17-2009 |
| Patent application number | Description | Published |
|---|
| 20090044003 | METHODS AND APPARATUS TO CHANGE A FEATURE SET ON DATA COLLECTION DEVICES - Methods and apparatus for modifying the feature set of data collection devices are disclosed. Requests are receiving at a computer system different from the data collection device for a new configuration of the data collection device, the request including an identifier for the data collection device, identification of one or more features, and for each identified feature, an indication to modify the operation of a feature. The identifier may comprise an identifier that is unique for a particular data collection device or an indication of a group of devices. e.g. a model number. Prior to authorizing the new configuration, a determination may be made as to whether the identified data collection device(s) are suitable for the new configuration by consulting a configuration database. To implement the new configuration, an encoded authorization file is generated based on the requested configuration and the identifier of the data collection device(s). The encoded authorization file is transmitted to one or more data collection devices. Each data collection device that receives an encoded authorization file attempts to decode of the license using its identifier(s). If the authorization file is successfully decoded, a license key on that device is updated to implement the new configuration. | 02-12-2009 |
| 20090088203 | Wireless bar code transaction device - A cellular camera telephone is provided with aiming, illumination, and decoding functionality to enable the economical and ergonomic reading and decoding of bar code symbols. The aiming and illumination are preferably a single system to minimize power consumption, such as by projecting a rectangle of light to both frame and illuminate the image area containing the target bar code. The cell phone is further provided with a lens system that permits switching between the ‘normal’ picture-taking focal range of from a few feet to infinity, and a bar code-reading focal range on the order of from a few to several inches. The lens system may involve, or combine, conventional autofocus/autozoom technology, fluid or adaptive lens technology, and liquid crystal lens technology. The cell phone may both acquire information from scanning bar codes, and transmit information by creating and displaying bar codes. Wireless connectivity allows the cell phone to communicate with the Internet or any of a number of network types, enabling the user to request, review, and authorize transactions. | 04-02-2009 |
| 20100276492 | FOCUSING APPARATUS AND TERMINAL COMPRISING VARIABLE FOCUS LENS ASSEMBLY - There is described a focusing apparatus having a deformable membrane that at least partially defines a cavity and an optical fluid disposed in the cavity. An actuator assembly can be provided for imparting a force to the deformable membrane. In one embodiment, the actuator assembly can include a piezoelectric actuator. | 11-04-2010 |
| 20110212751 | CELLULAR CAMERA PHONE - A cell phone includes: a device for wireless communication; an imager sensor for capturing an image of an object; a lens system for projecting an image of the object onto the imager; a battery for powering the cell phone; a lens system for focusing images of the object onto the imager comprising: a focus element; at least two electrodes associated with the focus element; a control system to adjust the state of focus of the focus element by controlling the at least two electrodes. | 09-01-2011 |
| Patent application number | Description | Published |
|---|
| 20080296426 | APPARATUS AND METHOD FOR MANAGING FLEXIBLE LINES - An apparatus for managing flexible lines has first and second spool members secured together by a hinge which allows the spool members to be folded between an open condition in which the spool members are in co-planar, side-by-side positions and a folded, closed condition in which the spool members are folded towards one another until they are aligned and substantially face-to-face. Each spool member has a groove extending in an at least substantially continuous loop which receives successive windings of a line or strip as it is wound in a figure eight pattern between the two spool members in an open condition. When winding is complete, the spool members can be folded together into the folded, closed condition. | 12-04-2008 |
| 20090003791 | APPARATUS AND METHOD FOR MANAGING FLEXIBLE ELONGATE ELEMENTS - An apparatus for managing lengths of flexible elongate elements between two fixed points has a single spool with a track of predetermined width sufficient for winding alternate turns of the elongate element about opposite side regions of the track in a folded figure eight pattern. A first turn of the elongate element is wound about a first side region of the track, then the element is crossed over to the second side region of the track and a second turn is wound about the second side region of the track. The elongate element is crossed back over to the first side region and a third turn is wound about the first side region. The process is repeated until at least the majority of the slack between the fixed points on the element has been taken up. | 01-01-2009 |
| 20090080836 | WET MATE CONNECTOR - A connector has first and second connector units, each unit incorporating an oil-filled chamber housing one or more contact elements to be joined. At least one connector unit has a face seal assembly which seals the forward end of the contact chamber in the unmated condition. The face seal assembly comprises three elements. One element is an annular elastomeric seal situated radially outward. The two other elements are inner seal elements which are pressed together radially to form a substantially disc-like shape. The resulting disc-like shaped seal fills the central, circular end face opening of the outer annular seal. As the connector units are mated, elements of the elastomeric face seal assembly are displaced, one axially, and others both axially and radially, creating an opening between the oil-filled chambers that is sealed from the outside environment. | 03-26-2009 |
| 20110130024 | KEYLESS HARSH ENVIRONMENT CONNECTOR - A keyless harsh environment connector has a plug unit containing a pin having an outer surface carrying a plurality of axially spaced, annular contacts of gradually decreasing diameter towards a forward end of the pin, and a receptacle unit having a fluid-filled chamber containing a corresponding number of axially spaced, annular contacts of gradually increasing diameter towards a forward end of the receptacle unit, configured for mating engagement with corresponding contacts on the plug pin when the units are mated. A sealing mechanism at a forward end of the chamber seals the chamber when the units are unmated and forms a seal with the plug pin on mating of the units. The plug pin is hollow and extends through an interface between opposing seals at the front end of the receptacle contact chamber during mating. | 06-02-2011 |
| 20110177697 | HARSH ENVIRONMENT ROTARY JOINT ELECTRICAL CONNECTOR - A rotary joint connector has a plug having a plug contact module and a mating receptacle having a receptacle contact module designed for mating engagement with the plug contact module when the connector is fully mated. One of the units has front and rear shells which are rotatably coupled together and contain the contact module which is held in the rear shell so that the rear shell and contact module are free to rotate in the front shell. The mating contact arrangement is such that the plug and receptacle contact modules do not have to be rotationally aligned to maintain electrical contact, so that relative rotation of the electrical contacts of the two contact modules about the mating axis as a result of rotation of the rear shell does not degrade the quality of the connected circuits. | 07-21-2011 |
| 20110207340 | Robotically Mateable Rotary Joint Electrical Connector - A robotically mateable connector has a flying-lead plug unit and a receptacle unit adapted for releasable mating engagement with the plug unit. The plug unit includes a robotic manipulator grip assembly. A rear end shell which includes a cable attachment fitting holds a plug module having an outer surface carrying a plurality of axially spaced, annular contacts of gradually decreasing diameter towards a forward end of the module, and is rotatable relative to a plug front shell. The receptacle unit contains a receptacle module having a bore containing spaced annular contact seats of gradually increasing diameter designed for engagement with the plug contacts when the plug and receptacle units are fully mated. This provides a robotically actuated electrical connector that requires no rotational keying and relieves cable torque. | 08-25-2011 |
| Patent application number | Description | Published |
|---|
| 20080277924 | FEMALE CONNECTOR FOR RELEASABLE COUPLING WITH A MALE CONNECTOR DEFINING A FLUID CONDUIT - The present invention is a female connector for releasable coupling with a male connector. The male connector defines a fluid conduit and includes a male end adapted to be received within the female connector. The male end includes a coupling feature. The female connector comprises an opening, a collet finger, and an actuation element. The opening is adapted to guide the male connector along a first line of action as the male connector passes into the opening to be received within the female connector. The collet finger includes an engagement feature adapted to engage the coupling feature of the male end and displace along a second line of action generally normal to the first line of action. The actuation element is adapted to displace along a third line of action generally normal to the first and second lines of action in order to disengage the engagement feature from the coupling feature of the male end. When the engagement feature is engaged with the coupling feature, the fluid conduit of the male connector is held in fluid communication with a fluid conduit of the female connector. | 11-13-2008 |
| 20100301599 | Latching Female Fluid Tubing Coupler - A latching female tubing coupler comprises an opening, a collet finger, and an actuation member. The opening is adapted to guide a male connector along a first line of action as the male connector passes into the opening to be received within the female connector. The collet finger includes an engagement feature adapted to engage a coupling feature of the male connector and displace along a second line of action generally normal to the first line of action. The actuation member is adapted to displace along a third line of action generally normal to the first and second lines of action in order to disengage the engagement feature from the coupling feature of the male connector. When the engagement feature is engaged with the coupling feature on a male connector, the fluid conduit of the male connector is held in fluid communication with a fluid conduit of the female connector. | 12-02-2010 |
| 20110204622 | Male bayonet connector - A male bayonet connector connects a section of tubing to a female latch connector. The male bayonet connector includes a shaft defining a lumen, a distal end portion, and a proximal end portion. The distal end portion of the shaft has a sealing surface configured to engage a seal member within the female latch connector to create a fluid-tight seal. The shaft defines an annular recess proximal to and adjacent the distal end portion. The annular recess has a proximal chamfered sidewall and a distal sidewall perpendicular to the axis of the lumen, which are separated by a band of smaller diameter than the sealing surface. A grip is formed on the make bayonet connector between the proximal end portion and the annular recess. A ratio of a length of the first sealing surface to a distance between the grip and the distal sidewall is such that a side-load force, as imparted on the male bayonet connector, will not break a fluid-tight seal between the sealing surface and the seal member. | 08-25-2011 |
