Abstract: Systems and methods for low power lattice wave filters include an input operable to receive a digital input signal having a first sample rate, a first processing branch including a first delay element operable to receive the digital input signal and output a delayed digital input signal, a second processing branch including a first adder operable to receive the digital input signal and subtract a delayed feedback signal to produce a difference signal, a second adder operable to combine the delayed digital input signal and the difference signal to produce an output signal, and wherein the second processing branch further includes a feedback path including a second delay element operable to receive the output signal and output the delayed feedback signal. In a multistage topology, a register is disposed between each stage and clocked to reduce ripple power.

Abstract: Systems and methods for low power lattice wave filters include an input operable to receive a digital input signal having a first sample rate, a first processing branch including a first delay element operable to receive the digital input signal and output a delayed digital input signal, a second processing branch including a first adder operable to receive the digital input signal and subtract a delayed feedback signal to produce a difference signal, a second adder operable to combine the delayed digital input signal and the difference signal to produce an output signal, and wherein the second processing branch further includes a feedback path including a second delay element operable to receive the output signal and output the delayed feedback signal. In a multistage topology, a register is disposed between each stage and clocked to reduce ripple power.

Abstract: A sound generating pet toy is provided which includes two similarly configured pet toy components. Each pet toy component has an exterior housing and an electronics module. The electronics module includes and electronics circuit having d.c. batteries, a microprocessor which includes a wireless transceiver component, a timer, a speaker, a push button on/off switch, and a high sensitivity vibration switch sensor. The microprocessor is electrically coupled to and powered by the batteries. The microprocessors are programmed to emit a sound upon activation from a first pet toy components, and thereafter to switch the generation of the sound to the second pet toy component upon sensing movement of the first pet toy component, this switching occurring back and forth between the two pet toy components as long as movement is sensed.

Abstract: A toy a pet laser toy 100 includes a housing 101 having a front end 104 and a rear end 105 relative to the forward direction of travel. The toy has a right wheel 107 coupled to a right motor 110 and a left wheel 108 coupled to a left motor 111. The motors are independently controlled through a microprocessor 118. The toy 100 also includes a light source 126 mounted to the housing 101 at a downward angle with respect to the horizontal plane underlying the toy. With the angular mounting of the light source 126, the light produced by the light source 126 is projected upon the underlying support surface a short distance behind the rear end 105 of the toy 100.

Abstract: A method for realizing backpressure of masses of ports and a device realizing the method are disclosed. The method for realizing backpressure of masses of ports includes: detecting whether user data transmitted to a channelized physical port reaches a backpressure threshold, generating an idle frame or a series of idle frames when the backpressure threshold is reached; combining the idle frame with the user data which needs to be transmitted to the channelized physical port reaching the backpressure threshold, and transmitting the combined data; discarding the idle frame before the combined data enters the channelized physical port. The idle frame is employed in the present invention to realize the backpressure. The idle frame occupies some of the transmission bandwidth and reduces the bandwidth of user data, while the idle frame does not enter the physical port. Therefore, the aim of backpressure is achieved. The bandwidth of idle frame can be pre-configured according to the requirements.

Abstract: A method for realizing backpressure of masses of ports and a device realizing the method are disclosed. The method for realizing backpressure of masses of ports includes: detecting whether user data transmitted to a channelized physical port reaches a backpressure threshold, generating an idle frame or a series of idle frames when the backpressure threshold is reached; combining the idle frame with the user data which needs to be transmitted to the channelized physical port reaching the backpressure threshold, and transmitting the combined data; discarding the idle frame before the combined data enters the channelized physical port. The idle frame is employed in the present invention to realize the backpressure. The idle frame occupies some of the transmission bandwidth and reduces the bandwidth of user data, while the idle frame does not enter the physical port. Therefore, the aim of backpressure is achieved. The bandwidth of idle frame can be pre-configured according to the requirements.