what is claimed is:
1. An SPI data probe, comprising:
a bus connector configured for coupling to an SPI data bus;
an analysis connector configured for coupling to an analysis unit; and
circuitry coupled between the bus connector and the analysis connector and configured for receiving data of the SPI data bus and for imitating an SPI device to transfer the data to the analysis unit without substantially altering impedance more than the SPI device would.
2. The SPI data probe of claim 1, wherein the circuitry comprises a buffer communicatively coupled to the bus connector and configured for receiving the data.
3. The SPI data probe of claim 2, wherein the circuitry further comprises a compensator communicatively coupled to the buffer and configured for conditioning the data before analysis by the analysis unit.
4. The SPI data probe of claim 3, wherein the compensator comprises one or more of an adaptive filter and a glitch filter configured for filtering the data received by the buffer.
5. The SPI data probe of claim 3, wherein the circuitry further comprises a deskew circuit communicatively coupled to the compensator and configured for adjusting timing of the data.
6. The SPI data probe of claim 1, wherein the data comprises Ultra320 SCSI data.
7. The SPI data probe of claim 1, wherein the circuitry is further adapted to passively probe the data and present an SPI device loading to the SPI data bus.
8. The SPI data probe of claim 1, wherein the circuitry is further adapted to actively probe the data by exchanging protocols with SPI devices coupled to the SPI data bus.
9. A method of analyzing data transferred through an SPI data bus, comprising steps of:
coupling to the SPI data bus;
imitating an SPI device using an SPI data probe;
transferring data of the SPI data bus through the SPI data probe without substantially altering impedance more than the SPI device would; and
measuring aspects of the data.
10. The method of claim 9, wherein the step of transferring comprises a step of buffering the data with the SPI data probe.
11. The method of claim 9, wherein the step of transferring comprises a step of conditioning the data before analysis.
12. The method of claim 11, wherein the step of conditioning the data includes a step of filtering the data to remove glitch pulses from the data.
13. The method of claim 9, wherein the step of transferring comprises a step of deskewing the data to adjust timing of the data.
14. The method of claim 9, wherein the step of imitating comprises a step of presenting an SPI device loading to the SPI data bus.
15. The method of claim 9, wherein the step of imitating comprises a step of exchanging protocols with SPI devices coupled to the SPI data bus.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A slide assist mechanism, comprising:
a case adapted to be attached to one of a main body or a moving body;
a slider disposed freely slidably in the case;
a latch supported by the slider switchably between a standby position which locks in a corresponding portion of the case and a draw-in position which releases the aforementioned locking;
a draw-in unit including an urging device; and
an operation member adapted to be attached to another of the main body or the moving body and switching the latch from the standby position to the draw-in position, or switching the latch from the draw-in position to the standby position,
wherein when the latch is switched from the standby position to the draw-in position, due to an urging force which has been accumulated in the urging device, the moving body is moved from a first position to a second position on a main body side through the operation member, and
wherein the slider has the urging device on a lower surface side, and includes an attachment device for the urging device on one end in a sliding direction.
2. A slide assist mechanism according to claim 1, wherein the slider comprises:
a spring placement portion provided along a longitudinal direction on the lower surface side to dispose a coil spring as the urging device;
a latch placement portion having one portion on the lower surface side in a reversed concave shape to place the latch; and
an escape groove provided in an upper wall portion to divide the latch placement portion, and
wherein the latch has a thickness so as to be substantially housed in the latch placement portion, and comprises an engaging portion engaging with and disengaging from the operation member, and a projection fitted in a guide groove provided on an upper surface side of the case through the escape groove.
3. A slide assist mechanism, comprising:
a case adapted to be attached to one of a main body or a moving body;
a slider disposed slidably in the case;
a latch supported by the slider switchably between a standby position which locks in the corresponding portion of the case and a draw-in position which releases the aforementioned locking;
a draw-in unit comprising an urging device; and
an operation member adapted to be attached to another of the main body or the moving body, and switching the latch from the standby position to the draw-in position, or switching the latch from the draw-in position to the standby position,
wherein when the latch is switched from the standby position to the draw-in position, due to an urging force which has been accumulated in the urging device, the moving body is moved from a first position to a second position on a main body side through the operation member,
the slide assist mechanism, further comprising a control device provided between the latch and the slider, wherein when the latch is switched between the standby position and the draw-in position through the operation member, the control device prevents the latch from inclining relative to the slider so as to maintain a horizontal rotational movement of the latch.
4. A slide assist mechanism according to claim 3, wherein the control device comprises:
an arc-shape supporting groove provided in the slider and notched as a center of a pivotal supporting portion for the latch; and
a supporting shaft for suspending, which includes a neck portion provided in the latch and inserted to pass freely slidably through the supporting groove, and a head portion preventing the neck portion from escaping in a state in which the neck portion is inserted through the supporting groove.
5. A slide assist mechanism according to claim 3, wherein the control device comprises:
a collar portion provided in a shaft portion rotatably supporting the latch to the slider and projecting around a shaft; and
a level difference provided in the slider and fitted in the collar portion.
6. A slide assist mechanism according to claim 3, wherein the control device comprises:
an abutting piece projecting upward from one portion of the latch and contacting freely slidably with a corresponding portion of the slider.
7. A draw-in unit used in the slide assist mechanism according to claim 1.
8. A draw-in unit used in the slide assist mechanism according to claim 3.