Abstract:
Methods for manufacturing actuator apparatus for generating a physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically in accordance with a clock, the apparatus comprising at least one actuator device, the methods comprising manufacturing at least one actuator device including providing an array of moving elements, wherein each individual moving element is responsive to alternating magnetic fields and is constrained to travel alternately back and forth along a respective axis responsive to an electromagnetic force operative thereupon when in the presence of an alternating magnetic field, providing at least one latch operative to selectively latch at least one subset of the moving elements in at least one latching position thereby to prevent the individual moving elements from responding to the electromagnetic force, providing a magnetic field control system operative to receive the clock and, accordingly, to control application of the electromagnetic force to the array of moving elements, and providing a latch controller operative to receive the digital input signal and to control the at least one latch accordingly.
Abstract:
A system that includes a direct digital speaker volume control device configured to be coupled to a direct digital speaker. The direct digital speaker include many pressure producing elements being adapted to generate a sound at a sound pressure level (SPL) and at a given frequency in response to an input signal, without using digital to analog converter. The direct digital speaker inherently exhibits a frequency response throughout its entire frequency range. The direct digital speaker volume control device includes a module for providing few filters each having a distinct cutoff frequency such that each filter exhibits no attenuation below its cutoff frequency and an attenuation response above the filter's cutoff frequency. And a selector for selecting one of the filters according to a selection criterion that depends on a desired volume and frequency of generated sound, and applying the filter to the input signal for generating a filtered signal that fed to the speaker.
Abstract in simplified Chinese:一种用以制造致动器(actuator)设备之方法,该致动器设备系用于产生一物理效应,其至少一特质与一数码输入信号之至少一特性相对应,该数码输入信号系根据一时钟而被周期性地采样,该设备包含至少一致动器设备,该方法包含制造至少一致动器设备,包含:提供移动组件之一数组,其中每一个别移动组件系对交互的磁场反应,且强迫该移动组件沿着一分别的轴交互地来回行进,并对一电磁力反应,该电磁力在一交替的(alternating)磁场存在时运作;提供至少一闩扣(latch),其运作以选择性地闩扣该移动组件之至少一子集于至少一闩扣位置,借此避免该个别移动组件对该电磁力反应:提供一磁场控制系统,其运作以接收该时钟,且因此以控制对该移动组件之数组之该电磁力之应用;以及提供一闩扣控制器,其运作以接收该数码输入信号并且因此以控制该至少一闩扣。
Abstract:
A system which controls a group of multiple arrays of actuator elements, each of the actuator elements including a moving element which moves between a first and a second extreme positions; the system including: a controller, configured to generate control commands for at least one array of the multiple arrays in each individual cycle out of a series of sampling cycles, based on obtained information; and (b) an interface configured to transfer the control commands to the at least one array, thereby resulting in releasing from the first extreme position during the intended cycle of at least one moving element that is included in the at least one array; wherein release of all moving elements of at least one restrained array out of the multiple arrays is prevented during the intended cycle.
Abstract:
Actuator apparatus comprising at least one moving elements, each comprising comb drive apparatus including at least first and second comb elements at least one of which is free to be in motion in a medium, and a controller controlling the motion responsive to an input signal representing a desired sound.
Abstract:
An actuation system for generating a physical effect, the system comprising at least one array of translating elements each constrained to travel alternately back and forth along a respective axis, toward first and second extreme positions respectively, in response to activation of first and second forces respectively; and a controller operative to use the first and second forces to selectably latch at least one subset of said translating elements into the first and second extreme positions respectively.
Abstract:
Direct digital speaker apparatus receiving a digital input signal and generating sound accordingly, the apparatus comprising an array of pressure-producing elements and a controller operative to compute a timing pattern determining if and when each pressure-producing element is actuated so as to achieve a desired directivity pattern.
Abstract:
Actuator apparatus for generating a physical effect, at least one attribute of which corresponds to at least one characteristic of a digital input signal sampled periodically in accordance with a clock, the apparatus comprising at least one actuator device, each actuating device including an array of moving elements, at least one latch operative to selectively latch at least one subset of the moving elements in to prevent moving elements from responding to electro magnetic force, a magnetic field control system operative to receive the clock and, accordingly, to control application of the electro magnetic force to the array of moving elements, and a latch controller wherein the magnetic field control system comprises a magnetic field generator and a magnetic field controller controlling the generator and wherein the array of moving elements is partitioned into a plurality of sets of moving elements and the magnetic field generator comprises a corresponding plurality of current bearing elements each providing a magnetic field having a shape across a corresponding set of moving elements, wherein all of the shapes are generally equal and each is divergent along each of the axes of the moving elements in the set.