Abstract: A multi-phase signal generator and a multi-phase signal generating method thereof. The multi-phase signal generator includes a signal generator, a first comparator, a second comparator and a logic operation circuit. The signal generator generates a periodic signal. The first comparator receives the periodic signal and respectively compares the periodic signal with a first reference voltage and a second reference voltage to generate a first output signal. The second comparator receives the periodic signal and compares the periodic signal with a first threshold voltage to generate a second output signal. The logic operation circuit performs logic operations on the first output signal and the second output signal so as to generate a plurality of first phase output signals.

Abstract: A multi-phase signal generator and a multi-phase signal generating method thereof. The multi-phase signal generator includes a signal generator, a first comparator, a second comparator and a logic operation circuit. The signal generator generates a periodic signal. The first comparator receives the periodic signal and respectively compares the periodic signal with a first reference voltage and a second reference voltage to generate a first output signal. The second comparator receives the periodic signal and compares the periodic signal with a first threshold voltage to generate a second output signal. The logic operation circuit performs logic operations on the first output signal and the second output signal so as to generate a plurality of first phase output signals.

Abstract: A multi-phase signal generator and a multi-phase signal generating method thereof. The multi-phase signal generator includes a signal generator, a first comparator, a second comparator and a logic operation circuit. The signal generator generates a periodic signal. The first comparator receives the periodic signal and respectively compares the periodic signal with a first reference voltage and a second reference voltage to generate a first output signal. The second comparator receives the periodic signal and compares the periodic signal with a first threshold voltage to generate a second output signal. The logic operation circuit performs logic operations on the first output signal and the second output signal so as to generate a plurality of first phase output signals.

Abstract: A method for determining the human leukocyte antigen (HLA) genotype of a nucleic acid sample, comprises: contacting a nucleic acid sample with at least one nucleic acid primer set and subjecting the mixture to a nucleic acid amplification reaction; determining the size of any amplification products produced in the amplification reaction; and correlating the presence and/or absence of specific amplification products with the presence and/or absence of specific sequence polymorphisms in the nucleic acid sample. At least one of the primer sets is a multi-specific primer set comprising at least one sequence-specific forward primer and at least one sequence-specific reverse primer and being adapted to amplify two or more specific target sequences in the nucleic acid sample. Each of the specific target sequences comprises a sequence polymorphism that is known to be associated with an HLA allele and which may be present in the nucleic acid sample to be genotyped.

Abstract: A medical device comprising a supporting structure having a coating on the surface thereof, the coating containing a therapeutic substance, such as, for example, a drug. Supporting structures for the medical devices that are suitable for use in this invention include, but are not limited to, coronary stents, peripheral stents, catheters, arterio-venous grafts, by-pass grafts, and drug delivery balloons used in the vasculature. Drugs that are suitable for use in this invention include, but are not limited to, This drug can be used in combination with a drug selected from anti-proliferative agents, anti-platelet agents, anti-inflammatory agents, anti-thrombotic agents, cytotoxic drugs, agents that inhibit cytokine or chemokine binding, cell de-differentiation inhibitors, cytostatic drugs, or combinations of these drugs.

Abstract: A keyboard housing includes a key plate with a plurality of actuator keys mounted on an upper face and a waterproof chamber mounted on a lower face thereof and a device to retain the actuator keys in a normally unpressed position. A circuit board is disposed in the waterproof chamber. A switch contact assembly mounted on the lower face of the key plate which includes a first membrane having a first conductive pattern, a second membrane having a second conductive pattern and a partition membrane disposed between the first and second membranes to separate the first conductive pattern from the second conductive pattern in a normal open switch. The partition membrane includes a hole device which permits a portion of the first conductive pattern to engage with a portion of the second conductive pattern when the first membrane is pressed by one of the actuator keys, thereby generating a signal corresponding to the pressing key.