摘要:
Disclosed are methods and devices for automatically selecting which mobile communication device among two or more related mobile communication devices may establish communication or authorize a transaction for particular services or goods with an unrelated third communication device. The described method includes a first mobile communication device detecting the presence of a related second mobile communication device and authorizing a communication with a third unrelated entity, such as that of a vendor, based on the presence of the related second mobile communication device. Also described is a method of a first mobile communication device including detecting the presence of a related second mobile communication device and restricting wireless communication with a unrelated third communication device, such as that of a vendor.
摘要:
A portable radio communication device (102) includes a housing (302), and a transmitter (906) and control circuitry (902) disposed in the housing (302). The housing (302) is configured to carry a first battery source (112) and to optionally simultaneously carry a second battery source (114). The control circuitry (902) configures the transmitter (906) to transmit in accordance with a first set of power levels when the second battery source (114) is available, and in accordance with a second set of power levels when the second battery source (114) is unavailable. The first set of power levels includes at least one power level greater than any of the second set of power levels.
摘要:
An electronic circuit (200) for a portable electronic device includes an energy source interface (202), a load (204) coupled to the energy source interface (202), an energy storage circuit (206) having a maximum operating voltage, and a switch circuit (208). The switch circuit (208) is coupled to the energy source interface (202) in series with the energy storage circuit (206). The switch circuit (208) operates to switchably decouple the energy storage circuit (206) in response to a voltage at the load (204) that exceeds the maximum operating voltage.
摘要:
A mobile station (102) has electrical circuitry (301) that operates to reduce power consumption. A synthesizer (318) is tuned so that a receiver (314) receives a home radio frequency (RF) signal during a receive slot (504) of a PCH subframe (209). A controller (310) detects if an upcoming subframe has an uplink requirement and if data from the home RF signal indicates that an idle condition exists. If the upcoming subframe does not have an uplink requirement, synthesizer (318) is tuned during a long idle slot (506) of PCH subframe (209) to measure signal strengths of two peripheral RF signals. If the idle condition does exist, electrical circuitry (301) is placed into a low power mode throughout a transmit slot (508), a receive slot (512), a long idle slot (514), and a transmit slot (516).
摘要:
A circuit substrate, which supports optically and electrically conveyed signals, and method for forming the same are provided. The circuit substrate includes a substrate upon which one or more electrically conductive traces are formed, where the electrically conductive traces have areas of isolation between adjacent ones of the electrically conductive traces. The circuit substrate further includes one or more optical waveguides, where the one or more optical waveguides are in the same plane as the one or more electrically conductive traces. The optical waveguides are formed using an optically transmissive material, which is deposited in the areas of isolation between the electrical traces.
摘要:
An apparatus and method to reduce uplink compressed mode monitoring in a communication device includes a first step of monitoring a neighboring channel and measuring a channel signal strength. An desense of the monitoring receiver is estimated to determine a threshold, which is compared to the signal strength. If the signal strength is less than the threshold, a new neighboring channel is monitored to see if the signal strength changes. If not, the measured signal is probably interference. In this case, the communication device can request uplink compressed mode to get an accurate signal strength measurement. Only under these condition are uplink compressed mode called for, instead of full time compressed mode, thereby maintaining data capacity.
摘要:
A method (1400) of enabling automatic frequency control (AFC) concurrent with time alignment of information in a communication device includes a first step (1402) of providing a data stream to an AFC. A second step (1404) includes applying multiple frequency offsets to the data stream. The offsets are separated from each other by about ±2&pgr;/2m radians with m being the number of bits per symbol in the modulation system. A third step (1406) includes correlating each frequency offset signal with a predetermined symbol sequence until correlation is found. A fourth step (1408) includes coupling the correct data stream of the branch with the found correlation to an AFC logic circuit indicating AFC lock. A fifth step (1410) includes simultaneously supplying the correct data stream to the communication device along with the fourth step (1408) such that time alignment can take place concurrently with AFC in the communication device.
摘要:
A phase-locked-loop circuit for a radio transceiver operative to transmit and to receive modulated signals during nonconcurrent time periods. During time periods in which the radio transceiver is to generate and to transmit a modulated signal, the phase-locked-loop circuit is connected to the transmitter portion of the transceiver. During time periods in which the radio transceiver is to receive a modulated signal, the phase-locked-loop circuit is connected to the receiver portion of the transceiver. A switch, preferably comprised of a multiplexer, alternately connects the phase-locked-loop with the transmitter portion and the receiver portion of the transceiver.
摘要:
Methods and systems for conducting communication between mobile devices are disclosed herein. In one embodiment, a method of achieving communications between first and second mobile devices that are in proximity with one another includes transmitting a first signal from the first mobile device and receiving a first reflected signal at that mobile device, the first reflected signal being the first signal reflected by an object in proximity to that mobile device. The method also includes transmitting a second signal from the first mobile device for receipt by the second mobile device upon being reflected by the object, and receiving a confirmation signal from the second mobile device in response to the second signal. The method further includes achieving a paired relationship of the first mobile device relative to the second mobile device, whereby because of the paired relationship the first and second mobile devices are capable of additional communications therebetween.
摘要:
A portable communication device (100, 800, 900) has an antenna element (102, 1206). The antenna element forms a slot (104, 1208) which is used as a slot antenna. The device is configured such that the slot facilitates operation of a user interface element through the slot.