摘要:
A system on a chip integrated circuit includes a first in-phase digital submodule and a first quadrature phase digital submodule such that the first in-phase digital submodule and the first quadrature phase digital submodule are operable to produce at least one output signal based on at least one input signal. A digital clock generator generates a first in-phase digital clock signal having a plurality of first in-phase digital clock cycles over a predetermined period and a first quadrature phase digital clock signal having a plurality of first quadrature phase digital clock cycles over the predetermined period. The plurality of first in-phase digital clock cycles are substantially interleaved with the plurality of first quadrature phase digital clock cycles over the predetermined period.
摘要:
A system on a chip integrated circuit includes a first digital module a second digital module such that the first digital module and the second digital module are operably coupled to generate an output signal based on an input signal, based on the first digital clock signal and the second digital clock signal. A digital clock generator generates a base clock signal at a base clock frequency that varies based on a control signal and generates a first digital clock signal having a substantially constant number of first digital clock cycles over a predetermined period and for generating a second digital clock signal having a substantially constant number of second digital clock cycles over the predetermined period.
摘要:
The present invention provides a method for attenuating specific signal components within a digital data signal. Such data components may include timing components such as pilot tones and their multiples. This process first receives a decoded data signal. A modulo processing operation, such as a multi-tapped integration, a leaky bucket integration, or other like averaging function on every Nth sample of the received data signal, is then performed to produce a representation of the signal component to be attenuated. A scaling factor may be applied to the representation before subtracting the representation of the signal component to be attenuated from the received data signal. Scaling is required because the signal components to be attenuated may lack a predetermined amplitude or exhibit a time varying amplitude. Subtracting the scaled representation of the signal component to be attenuated from the received data signal produces a filtered data signal wherein the filtering process may exhibit a deep and well defined filter.
摘要:
A radio receiver, optionally used in conjunction with a handheld audio system, includes a radio stage for processing a received radio signal into an audio signal. An audio stage produces an audio output, based on the audio signal. An overload monitor detects an overload condition in the radio stage and generates an overload signal in response to the detected overload condition. A controller controls the audio output in response to the overload signal.
摘要:
A handheld audio system includes a radio signal decoder integrated circuit (IC) and a digital audio processing integrated circuit. The radio signal decoder integrated circuit produces a digital left channel signal and a digital right channel signal from a received radio signal in accordance with an enable signal and also produces a system clock. The digital audio processing integrated circuit includes a DC-to-DC converter and a processing module. The DC-to-DC converter is operably coupled to produce at least one power supply voltage based on the system clock. The processing module is operably coupled to produce the enable signal when the at least one power supply voltage has reached a desired level and to produce audio signals for audio playback from at least one of the digital left and right channel signals and a stored digital audio file.
摘要:
A method of manufacturing a high frequency integrated circuit begins by positioning a die within a package, wherein the die includes a circuit that processes a high frequency signal and at least one bond pad operably coupled to the circuit, and wherein the package includes a plurality of bond posts, wherein at least one of the plurality of bond posts is allocated to the at least one bond pad. The method continues by bonding a first plate of a capacitor to the at least one bond pad. The method continues by bonding a second plate of the capacitor to the at one of the plurality of bond posts.
摘要:
The invention relates to an actuator system for a projectile having a first and second pair of opposing steering fins disposed in a transverse plane of the projectile. The first pair of opposing steering fins includes a first fin and second fin. The second pair of opposing steering fins includes a third fin and a fourth fin. The actuator system comprises a first motor assembly configured to control the position of the first pair of opposing steering fins, and a second motor assembly configured to control the position of the second pair of opposing steering fins. The first motor assembly and second motor assembly are mounted axially along an axis of the projectile such that a first portion of the first motor assembly is telescopically received within a second portion of the second motor assembly.
摘要:
A composite structure including a polyurea show surface, or top layer, and a polyurethane backing layer is disclosed. Preferably, the show surface of the composite structure is substantially free of volatile organic compounds and is aliphatic such that it is ultraviolet light stable. Specifically, the show surface is the reaction product of an aliphatic polyisocyanate or aliphatic polyisocyanate blend, and of a resin component which is a polyamine. The resin component reacts with the aliphatic polyisocyanate to form a polyurea. The show surface has a Shore D hardness of 70. Like the show surface, the polyurethane backing layer of the composite structure is substantially free of volatile organic compounds. This backing layer is the reaction product of a second polyisocyanate component, such as polymeric diphenylmethane diisocyanate, and of a second-layer resin component, which comprises a polyol having a functionality of at least three. The complete composite structure has a flexural modulus of at least 200,000 lb/in2.
摘要:
The invention relates to a windshield wiper drive unit having a drive motor (1) and a gear (2, 3) for transmitting a rotary motion of the motor (1) to the shaft of a windshield wiper, having at least one sensor (6) for detecting a position of the shaft, and having a control circuit (4), which receives a detection signal of the sensor (6) and has one or more inputs (7) for receiving operating signals that define a desired operating state of the windshield wiper and is arranged to control a sequence of motions of the shaft as a function of the operating signal received, in which the control circuit (4) is combined with the drive motor (1) and the at least one sensor to make an integral component unit.
摘要:
The invention relates to a windshield wiper device (100) comprising a driving means (110) and a control unit (130) for the driving means (110). An operating characteristic map (140) is provided, in which a maximum torque to be output by the driving means (110) and a minimum rotational speed of the driving means (110) are stored.