摘要:
A charge-coupled device (CCD) analog and digital correlator comprises identical modules, each of which is a simple analog CCD correlator with digital input and output. Circuits are included:(1) for injecting charges proportional to the voltage sequences s(n) and r(n), where s(n) refers to the input signal, and r(n) relates to a reference signal, against which the input signal is correlated;(2) for non-destructively sensing and tapping each sample s(n) and r(n);(3) for forming the summation s(n)+r(n);(4) and finally for squaring s(n), r(n), and [s(n)+r(n)] in simple, floating gate MOSFET amplifiers. The amplifiers operate in their saturation region, and have outputs proportional to s.sup.2 (n), r.sup.2 (n), and [s(n)+r(n)].sup.2, which are then fed into a differential amplifier to produce s(n)r(n).
摘要:
A signal processing sensor which utilizes a combination of charge transfer devices and signal processing concepts which simultaneously measures the incident optical signal and performs a linear transformation upon that signal. Two CCD registers are arranged on either side of a photodiode array. Independent control of the transfer gates which control the flow of information stored in the depletion region of the photodiodes results in independent functioning of the two CCD registers. The difference between the charge in the two registers is taken at the output in order to provide both positive and negative weight for the data pattern that is to be convolved or correlated.
摘要:
A wireless communications validation system comprises a validation module configured to determine an identity of an antenna disposed in a computer system and an identity of a wireless module disposed in the computer system, the validation module configured to validate permissible combination of the antenna with the wireless module.
摘要:
A navigation device for determining the location of the device includes a location determining module to generate data relating to a geographic location of the device, and to adjust frequency of transmission of the data over a communication interface based on a selectable threshold value representing an amount of change in the geographic location of the device.
摘要:
A device comprises a first antenna and a second antenna. During data transmission, only the first antenna transmits data. During data reception, the second antenna is the main reception antenna and the first antenna operates as a diversity antenna.
摘要:
An electronic device comprising a host module and a wireless module each comprising a processing unit, wherein the electronic device is configurable to be operated in a low processing mode by performing processing functions for the electronic device using the processing unit of the wireless module.
摘要:
A radio comprises a first transceiver, a second transceiver, and a baseband control coupled to the first and second transceivers. The baseband control selectively implements one of at least a first and a second communication mode. For the first communication mode, the first transceiver transmits and receives data while the second transceiver functions as a diversity receive transceiver. For the second communication mode, the second transceiver transmits and receives data and does not function as a diversity receive transceiver.
摘要:
A wireless device comprises a plurality of receivers and logic coupled to the receivers. The logic causes at least one receiver to receive data communications from an access point while at least one other receiver concurrently scans for another access point.
摘要:
A device comprises a network interface and a programmable processor to execute software that performs an authorization process that is a function of network information received by the network interface. The network information comprises information indicative of a network with which the network interface is able to communicate, and the software causes the device to perform a boot process such that if the authorization process is not successful, the device does not successfully complete the boot process.
摘要:
A wireless device comprises a plurality of receivers and logic coupled to the receivers. The logic causes at least one receiver to receive data communications from an access point while at least one other receiver concurrently scans for another access point.