Abstract: Exemplary embodiments are directed to wireless power. A host device peripheral may comprise a wireless power charging apparatus, which may include transmit circuitry and at least one antenna coupled to the transmit circuitry. The at least one antenna may be configured to wirelessly transmit power within an associated near-field region. Additionally, the host device peripheral may be configured to couple to a host device.

Abstract: Exemplary embodiments are directed to wireless power. A host device peripheral may comprise a wireless power charging apparatus, which may include transmit circuitry and at least one antenna coupled to the transmit circuitry. The at least one antenna may be configured to wirelessly transmit power within an associated near-field region. Additionally, the host device peripheral may be configured to couple to a host device.

Abstract: A direct conversion receiver (200) is capable of recovering a filtered baseband signal (295) from a radio signal (201) modulated with a baseband signal (202). The direct conversion receiver (200) comprises a radio frequency mixer (205) for converting the radio signal (201) to the baseband signal (202), a lowpass amplifier (210) DC coupled to the radio frequency mixer (205), that amplifies the baseband signal (202) and substantially attenuates components of the baseband signal above a high corner frequency, and a DC offset compensation section (225) DC coupled to the lowpass amplifier (210), that provides a DC offset compensation and a controlled highpass filtering of the baseband signal. A low corner frequency of the DC offset compensation section is smoothly varied from a predetermined maximum value to a predetermined minimum value during a low frequency, low energy portion of the signaling protocol.

Abstract: A low power zero-IF selective call receiver has a local oscillator (106) that generates an injection signal for a first mixer (104) and a pair of quadrature phase related injection signals (122, 124) for a pair of second mixers (112, 114). The first mixer converts the received carrier signal (102) to an intermediate signal (108). A digital phase shifter/divider (116) coupled to the local oscillator (106) generates the pair of quadrature phase related injection signals (122, 124) at the frequency of the intermediate signal (108) which also equals the frequency of the local oscillator (106) divided by an integer greater then 1. The pair of second mixers (112, 114) coupled to the digital phase shifter/divider (116) converts the in and quadrature phase components (122, 124) of the intermediate signal (108) to respective in and quadrature phase baseband signals (126, 128).

Abstract: A volume control circuit for an audio transducer comprises a driver circuit driven by a first pulse rate signal to excite the audio transducer and render an audio signal at a desired volume and audio frequency corresponding to the first pulse rate signal, and a control circuit selectively activated to pulse modulate the excitation of the audio transducer during its pulsed excitation periods to alter the volume of the audio signal rendered by the audio transducer. In one embodiment, the control circuit includes a logical AND gate having as one input the first pulse rate signal and as another input a selected signal of either a second pulse rate signal or a signal representative of a logical one, the AND gate selectively activated to pulse rate modulate the first pulse rate signal with the second pulse rate signal which is preferably ultrasonic.

Abstract: An encased electronic component comprises a casing (10) for protecting the component while exposing electrodes (or terminations) thereof for soldering. The casing includes an aperture for allowing air internal of the casing to exhaust upon heating during soldering so as to oppose the ingress of foreign material into the casing.