Abstract: A feedforward amplifier circuit (30) compensates for distortion introduced into an amplified input carrier signal (34) by amplifying and feedforwarding a distortion signal component from one or more of the amplifiers (32a-32n) in an amplifier array (32) used to amplify the input carrier signal (34). Specifically, a main power amplifier (31) includes a plurality of combined power amplifiers (32a-32n) for amplifying the input carrier signal (34) to create an amplified carrier signal with a carrier signal component and a distortion signal component. The amplified carrier signal (34) is amplified on a main output path.
Abstract: A power amplifier circuit (30, 60) improves the linearity of an amplified output signal. The power amplifier circuit (30, 60) includes an input (33, 63) for receiving a carrier signal (34, 64) and an array of combined amplifiers (32, 62) of a predetermined type for amplifying the carrier signal (34, 64). At least one amplifier (48, 78) of the predetermined type is located between the input (33, 63) and the array of combined amplifiers (32, 62) for amplifying the carrier signal (34, 64) to produce a predistorted carrier signal (34b1, 64b1) with a carrier signal component and a distortion component to condition the carrier signal (34, 64) for input into the array of combined amplifiers (32, 62), and specifically to compensate for nonlinearities produced by the array of combined amplifiers (32, 62).
Abstract: A method of and wireless communications unit (WCU) for providing service in a mesh network includes a receiver for receiving a first signal from a first WCU in the mesh network; a directional antenna system for coupling the signal to the receiver, the signal arriving from a first selected one of a first plurality of directions; a controller to control the directional antenna system such that the signal is coupled to the receiver according too a local predetermined pattern of the first plurality of directions; and a transmitter to send a second signal in a second selected one of the first plurality of directions, where the controller interrupts the local predetermined pattern and selects the second direction.
Abstract: A capacitively sensed micromachined component includes an electrically insulative substrate (120) having a first side (121) and a second side (122) opposite the first side. The component also includes a first layer (130) adjacent to the second side of the electrically insulative substrate where at least a first portion of the first layer located adjacent to the second side of the electrically insulative substrate is infra-red light absorbing and is also electrically conductive. The component further includes a diffusion and chemical barrier layer (240) encapsulating the first layer and the electrically insulative substrate. The component still further includes a capacitively sensed micromachined device (310) on the diffusion and chemical barrier layer.
Abstract: A method and apparatus provides for motion activated control of an electronic device. The method activates a function, such as a backlight feature, of an electronic device, by storing at least one motion sequence and a function corresponding to each motion sequence. Motion of the electronic device is monitored, and when it is determined that the monitored motion corresponds to a motion sequence, the stored function that corresponds to the stored motion sequence is activated. The apparatus has a motion transducer that senses motion of the electronic device, and a device controller in communication with the motion transducer that activates the corresponding function when a motion processor determines that the stored motion sequence has been sensed by the motion transducer.
Type:
Grant
Filed:
September 22, 2000
Date of Patent:
March 4, 2003
Assignee:
Motorola Inc.
Inventors:
Robert W. Nilsen, Jheroen P. Dorenbosch
Abstract: A communication system (100) employs a method for informing a user of a communication device (e.g., 101) where to obtain a product. The communication system determines an approximate location of the communication device and whether a particular requested product or one or more other potentially desirable products are available in a general vicinity of the device. When the particular or potentially desirable product is so available, a context engine server (109) of the communication system conveys a product information request and optionally other purchaser-related information to multiple product providers (120). The context engine server receives responses to the product information request from at least some of the product providers, wherein at least some of the responses preferably include offers to pay respective advertising fees. The context engine server generates a list of product providers based on the responses and provides the list to the communication device for display to the device user.
Abstract: An adaptive Reed-Solomon(RS) decoder (207) and analogous methods arranged and constructed to decode a RS(n,k) encoded symbol stream, including; a code register (211), coupled to the symbol stream, for storing a received code word including code symbols, an index register (213) for storing a location information corresponding to each of a portion of the code symbols, a processor (215), coupled to the code register (211) and the index register (213), for performing soft decision decoding using an error parameter (217) and an erasure parameter (219) to provide corrected data (215) when the decoding is successful and to provide a failure indication (221) when decoding is unsuccessful, and a controller (223), coupled to the processor (215), for providing the error parameter and the erasure parameter and for adjusting the error parameter and the erasure parameter when the processor provides the failure indication.
Type:
Grant
Filed:
May 21, 1996
Date of Patent:
January 28, 2003
Assignee:
Motorola, Inc.
Inventors:
Pablo Eduardo Sammartino, Weizhong Chen
Abstract: A capacitive device includes a substrate (110), a first electrode (130, 140, 1220) located over the substrate and a second electrode (170, 1070, 1071, 1250) located over the first electrode, movable relative to the first electrode, and capacitively coupled to the first electrode. The device further includes a first control electrode (120, 150, 1210) located over the substrate and a second control electrode (160, 180, 1060, 1061, 1080, 1081, 1240) located over the first control electrode, movable relative to the first control electrode, and capacitively coupled to the first control electrode. The first and second control electrodes actuate the second electrode toward the first electrode.
Abstract: The present invention relates to a markup language document stored on a computer-readable medium to provide interactive services and methods thereof. The markup language comprises a dialog element and a step element. The dialog element includes markup language elements in which each markup language element is identifiable by one or more markup tags. The step element is contained within the dialog element and defines a state within the dialog element. The step element includes a prompt element, an input element, and a first attribute. The prompt element includes an announcement to be read to the user, and the input element includes an attribute to allow an audible user input to be converted to a text string.
Abstract: The present invention relates to a markup language document stored on a computer-readable medium to provide interactive services and methods thereof. The markup language comprises a dialog element and a step element. The dialog element includes markup language elements in which each markup language element is identifiable by one or more markup tags. The step element is contained within the dialog element and defines a state within the dialog element. The step element includes a prompt element, an input element, and a first attribute. The prompt element includes an announcement to be read to the user, and the first attribute allows a user to be notified of an event.
Abstract: A method of and register for obtaining information required to contact a communications unit is disclosed. The method includes: accessing a accessor location register, containing uniform resource names (URNs) cross referenced to uniform resource locators (URLs), to determine whether a URL corresponding to a URN for the communication unit is available; when the URL is available; initiating, using the URL, a first contact attempt with the communications unit; and contacting, using the URN, a home location register to validate the URL; and when the URL is not available; contacting, using the URN, the home location register to obtain the URL and then, using the URL, initiating a second contact attempt with the communications unit.
Type:
Grant
Filed:
March 30, 2001
Date of Patent:
November 26, 2002
Assignee:
Motorola, Inc.
Inventors:
Steven J. Goldberg, W. Garland Philips, Janiece S. Webb
Abstract: As the signal lines, such as the data bus, become longer, signal delay occurs due to the resistance and capacitance components of that bus. In order to minimize the effect due to this delay, the processing module is designed in consideration of the delay time.
An interface circuit 13 is provided in the bus to control the signal transfer. Data and so forth sent from the central processing unit is supplied directly to the extended bus without being delayed in the interface circuit. Data signals and so forth transferred to the central processing unit 11 is delayed for a predetermined time in the latch 25 of the interface circuit before being sent to the central processing unit. Because only the data signal to be sent to the central processing unit is latched, the size of the interface circuit can be minimized.
Abstract: A signal analyzer (303) and method thereof using short-time signal analysis, preferably recursive, to obtain a time variant feature from a signal, the signal analyzer including a signal sampler (401) with an input register (403) for storing a sequence of samples of the signal, a multiplier (405) for weighting in accordance with, alternatively, a half-sine, cosine, 2nd order complex pole, or 3rd order complex pole function the sequence of samples to provide weighted samples of the signal, and a combiner (407) for combining the weighted samples to provide a signal feature estimate, such as a signal average or frequency dependent energy estimate, for the signal.
Abstract: A method of manufacturing an electronic component includes forming first, second, and third capacitors (260, 270, 280) and electrically testing the first, second, and third capacitors to characterize an etch process for a sacrificial layer. Each of the first, second, and third capacitors has different amounts of first and second electrically insulative materials.
Type:
Grant
Filed:
June 16, 2000
Date of Patent:
October 15, 2002
Assignee:
Motorola, Inc.
Inventors:
Andrew C. McNeil, Daniel Koury, Jr., Bishnu P. Gogoi
Abstract: A locating system includes a receiver for receiving a signal, having parameters, from a source. This locating system includes a database, which includes receiver records. Each receiver record includes (a) a source field, (b) a signal parameter field, (c) a receiver location computed using at least the source field and the signal parameter field. The receiver location computation has an accuracy. The database is indexed by the source field and the signal parameter field. The system includes a processor, which is configured to access the database using the source and signal parameters to find a coarse receiver record including a link to a fine receiver record. The fine receiver record has a better receiver location computation accuracy than the coarse receiver record.
Abstract: A method of manufacturing a semiconductor component includes forming a first capacitor electrode (126) over a substrate (110), forming a capacitor dielectric layer (226) over the first capacitor electrode, and forming a second capacitor electrode (326) over the capacitor dielectric layer. The capacitor dielectric layer is made of aluminum.
Type:
Grant
Filed:
October 5, 2000
Date of Patent:
October 15, 2002
Assignee:
Motorola, Inc.
Inventors:
Haldane S. Henry, Darrell G. Hill, Jonathan K. Abrokwah, Mariam G. Sadaka
Abstract: A communications system includes a stationary unit, a mobile unit, and a proxy server. The stationary unit is adapted to send and receive messages. The mobile unit is adapted to establish a communication link with the stationary unit, and the mobile unit is also adapted to send and receive messages. The proxy server is adapted to route messages to one of the stationary unit and the mobile unit based on a status of the communication link between the stationary unit and the mobile unit. A method for routing messages includes monitoring the status of a communication link between a mobile unit and a stationary unit. A message is received and routed to one of the stationary unit and the mobile unit based on the status of the communication link.
Abstract: A mobile station (106) of a wireless communication system (100) detects (502) a predetermined user command applied to a user interface (308) of the mobile station. In response, the mobile station transmits (504), to a fixed portion (110) of the wireless communication system, a message including a request for local information and services. The fixed portion receives (506) the message, and, in response, determines (508) the location at which the mobile station is positioned. The fixed portion then generates (510) A the local information and services custom-tailored to a predetermined area around the location, and sends (512) the local information and services to the mobile station.
Abstract: A method of manufacturing a solder bump on a power copper structure and resultant device is disclosed. In the method, a layer of an electrically conductive, non-wettable material such as TiW is applied over a power copper structure. Then, solder bumps are formed on the non-wettable layer. The presence of the non-wettable layer prevents the collapse of the solder bumps when heated.
Abstract: A communications system having an antenna and at least one mobile unit in communications with the antenna. A price that a mobile unit will pay to receive an enhanced communications service is established. The antenna provides the enhanced communication service to the mobile unit paying the price.