Abstract:
PROBLEM TO BE SOLVED: To provide a level conversion digital switch exhibiting a relatively small component element count, having the smallest die region and saving power supplying current. SOLUTION: The level conversion digital switch provides changeover and level conversion between a first system and a second system which operate under logic supply voltage different in changeover element. When the supply voltage of the first system is greater than that of the second system, the changeover element is driven under voltage lower than the logic supply voltage of the first system. The level conversion digital switch includes the changeover element and a drive circuit. The changeover element provides a bidirectional signal path between the first system which operates under a first logic supply voltage and the second system which operates under a second logic supply voltage. The drive circuit includes a voltage selection section which generates the second supply voltage lower than the first logic supply voltage and a control section which operates under the second supply voltage to generate control voltage for the changeover element with control voltage lower than the first logic supply voltage. COPYRIGHT: (C)2004,JPO
Abstract:
본개시내용은다수의처리채널을구성하기위한분산처리시스템에관한것이다. 분산처리시스템은스트림프로세서와같은복수의코프로세서에통신적으로연결된 ARM 프로세서와같은메인프로세서를포함한다. 코프로세서는서로병렬로명령어를실행하고 ARM 프로세서를인터럽트할수 있다. 더긴 레이턴시의명령어는메인프로세서에서실행될수 있고더 낮은레이턴시의명령어는코프로세서에서실행될수 있다. 분산처리시스템에서스트림을트리거링할수 있는방법에는여러가지가있다. 일실시예에서, 분산처리시스템은서로다른레지스터세트에액세스하도록구성된스트림프로세서및 ARM 프로세서를포함하는스트림프로세서시스템이다. 스트림프로세서는각자의송신및 수신채널에메인스트림프로세서및 스트림프로세서를포함할수 있다. 스트림프로세서시스템은동작을위해라디오를구성하기위해라디오시스템에서구현될수 있다.
Abstract:
PURPOSE: A control method of a motor driving system is provided to improve the performance of a motor driving system by preventing oscillatory behaviors in the motor driving system. CONSTITUTION: A test driving signal is applied to the motor of a machine system in order to generate oscillatory behaviors in the machine system. A backchannel electric signal due to the motor of the machine system is detected from the oscillatory behaviors. The resonant frequency of the machine system is calculated from the backchannel electric signal. The resonant frequency of the machine system is saved in a register(910~930). The resonant frequency of the machine system is used in a run time mode.
Abstract:
PROBLEM TO BE SOLVED: To provide an interface protection device with an integrated supply clamp and a method of forming the same.SOLUTION: In certain implementation, an integrated circuit interface protection device comprises: a first diode protection structure; and a first thyristor protection structure electrically connected in parallel between a signal pin and a high power supply. Additionally, the protection device includes a second diode protection structure and a second thyristor protection structure electrically connected in parallel between the signal pin and a low power supply. Furthermore, the protection device includes a third diode protection structure and a third thyristor protection structure electrically connected in parallel between the high power supply and the low power supply. The third thyristor protection structure and the third diode protection structure are synthesized as part of an integrated circuit interface and can share at least a portion of wells and/or diffusion regions associated with the first and second thyristor protection structures.