1. A differential comparator, comprising:
a differential amplifier configured to output differential output signals;
a first switch portion configured to input the differential output signals from the differential amplifier and output the differential output signals from output terminals while changing over the output terminals;
a latch portion configured to update and latch the differential output signals from the output terminals of the first switch portion; and
a second switch portion configured to input output signals from the latch portion and output the latched output signals from output terminals while changing over the output terminals,
wherein the first switch portion and the second switch portion are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
2. The differential comparator as recited in claim 1,
wherein the first switch portion includes a first input terminal to which one of the differential output signals from the differential amplifier is inputted, a second input terminal to which the other differential output signal is inputted, a first output terminal, and a second output terminal, wherein the first input terminal and the first output terminal are connected via a first line equipped with a first analog switch and via a second line equipped with a second analog switch, and wherein the second input terminal and the second output terminal are connected via a third line equipped with a third analog switch and via a fourth line equipped with a fourth analog switch,
wherein the latch portion includes a first latch circuit for latching an output signal from the first output terminal of the first switch portion, a second latch circuit for latching an output signal from the second output terminal of the first switch portion, and a switch, the first and second latch circuits being configured to change over data-updating and data-latching in accordance with ON-OFF control of the switch,
wherein the second switch portion includes a first multiplexer having a first output terminal, and a second multiplexer having a second output terminal, wherein one of output signals from the latch portion is inputted into a first input terminal of the first multiplexer and a first input terminal of the second multiplexer, and the other output signal from the latch portion is inputted into a second input terminal of the first multiplexer and a second input terminal of the second multiplexer, and
wherein the first to fourth analog switches and the first and second multiplexers are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
3. The differential comparator as recited in claim 1,
wherein the first switch portion includes a first multiplexer having a first output terminal, and a second multiplexer having a second output terminal, wherein one of outputs from the differential amplifier is inputted into a first input terminal of the first multiplexer and a first input terminal of the second multiplexer, and the other output is inputted into a second input terminal of the first multiplexer and a second input terminal of the second multiplexer,
wherein the latch portion includes a first latch circuit for latching one of output signals from the first multiplexer, a second latch circuit for latching the other output signal from the second multiplexer, and a switch, the first and second latch circuits being configured to switch over data-updating and data-latching in accordance with ON-OFF control of the switch,
wherein the second switch portion includes a third multiplexer having a first output terminal, and a fourth multiplexer having a second output terminal, wherein one of output signals from the latch portion is inputted into a first input of the third multiplexer and a first input of the fourth multiplexer, and the other output signal from the latch portion is inputted into a second input terminal of the third multiplexer and a second input terminal of the fourth multiplexer, and
wherein the first and second multiplexers and the third and fourth multiplexers are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
4. A pipeline type AD converter equipped with a differential comparator,
wherein the differential comparator comprises:
a differential amplifier configured to output differential output signals;
a first switch portion configured to input the differential output signals from the differential amplifier and output the differential output signals from output terminals while changing over the output terminals;
a latch portion configured to update and latch the differential output signals from the output terminals of the first switch portion; and
a second switch portion configured to input output signals from the latch portion and output the latched output signals,
wherein the first switch portion and the second switch portion are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
5. The pipeline type AD converter as recited in claim 4,
wherein the first switch portion includes a first input terminal to which one of the differential output signals from the differential amplifier is inputted, a second input terminal to which the other differential output signal is inputted, a first output terminal, and a second output terminal, wherein the first input terminal and the first output terminal are connected via a first line equipped with a first analog switch and via a second line equipped with a second analog switch, and wherein the second input terminal and the second output terminal are connected via a third line equipped with a third analog switch and via a fourth line equipped with a fourth analog switch,
wherein the latch portion includes a first latch circuit for latching an output signal from the first output terminal of the first switch portion, a second latch circuit for latching an output signal from the second output terminal of the first switch portion, and a switch, the first and second latch circuits being configured to change over data-updating and data-latching in accordance with ON-OFF control of the switch,
wherein the second switch portion includes a first multiplexer having a first output terminal, and a second multiplexer having a second output terminal, wherein one of output signals from the latch portion is inputted into a first input terminal of the first multiplexer and a first input terminal of the second multiplexer, and the other output signal from the latch portion is inputted into a second input terminal of the first multiplexer and a second input terminal of the second multiplexer, and
wherein the first to fourth analog switches and the first and second multiplexers are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
6. The pipeline type AD converter as recited in claim 4,
wherein the first switch portion includes a first multiplexer having a first output terminal, and a second multiplexer having a second output terminal, wherein one of outputs from the differential amplifier is inputted into a first input terminal of the first multiplexer and a first input terminal of the second multiplexer, and the other output is inputted into a second input terminal of the first multiplexer and a second input terminal of the second multiplexer,
wherein the latch portion includes a first latch circuit for latching one of output signals from the first multiplexer, a second latch circuit for latching the other output signal from the second multiplexer, and a switch, the first and second latch circuits being configured to switch over data-updating and data-latching in accordance with ON-OFF control of the switch,
wherein the second switch portion includes a third multiplexer having a first output terminal, and a fourth multiplexer having a second output terminal, wherein one of output signals from the latch portion is inputted into a first input of the third multiplexer and a first input of the fourth multiplexer, and the other output signal from the latch portion is inputted into a second input terminal of the third multiplexer and a second input terminal of the fourth multiplexer, and
wherein the first and second multiplexers and the third and fourth multiplexers are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
7. A method of suppressing stability deterioration of a switched latch circuit of a differential comparator, wherein the differential comparator includes a differential amplifier configured to output differential output signals, and a latch portion configured to update and latch the differential output signals and output latched output signals,
the method comprising:
providing a first switch portion configured to input the differential output signals from the differential amplifier and output the differential output signals from output terminals while changing over the output terminals;
providing a second switch portion configured to input output signals from the latch portion and output the latched output signals output terminals while changing over the output terminals; and
changing over the first switch portion and the second switch portion complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
8. The method as recited in claim 7,
wherein the first switch portion includes a first input terminal to which one of the differential output signals from the differential amplifier is inputted, a second input terminal to which the other differential output signal is inputted, a first output terminal, and a second output terminal, wherein the first input terminal and the first output terminal are connected via a first line equipped with a first analog switch and via a second line equipped with a second analog switch, and wherein the second input terminal and the second output terminal are connected via a third line equipped with a third analog switch and via a fourth line equipped with a fourth analog switch,
wherein the second switch portion includes a first multiplexer having a first output terminal, and a second multiplexer having a second output terminal, wherein one of output signals from the latch portion is inputted into a first input terminal of the first multiplexer and a first input terminal of the second multiplexer, and the other output signal from the latch portion is inputted into a second input terminal of the first multiplexer and a second input terminal of the second multiplexer, and
wherein the first to fourth analog switches and the first and second multiplexers are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
9. The method as recited in claim 7,
wherein the first switch portion includes a first multiplexer having a first output terminal, and a second multiplexer having a second output terminal, wherein one of outputs from the differential amplifier is inputted into a first input terminal of the first multiplexer and a first input terminal of the second multiplexer, and the other output is inputted into a second input terminal of the first multiplexer and a second input terminal of the second multiplexer,
wherein the second switch portion includes a third multiplexer having a first output terminal, and a fourth multiplexer having a second output terminal, wherein one of output signals from the latch portion is inputted into a first input of the third multiplexer and a first input of the fourth multiplexer, and the other output signal from the latch portion is inputted into a second input terminal of the third multiplexer and a second input terminal of the fourth multiplexer, and
wherein the first and second multiplexers and the third and fourth multiplexers are changed over complementarily so that the differential output signals from the differential amplifier are always outputted from the same output terminals of the second switch portion respectively.
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. Sterile container, in particular for the holding and sterile storage of surgical instruments or material, comprising a holding space, which is defined by a container base and container walls, a lid for closing the holding space and a gas exchange opening, which can be closed off by a sterile filter, wherein on an outer side of the lid there is provided at least one inflow edge which faces away from the gas exchange opening and slopes downward toward the outside relative to a lid plane.
2. Sterile container according to claim 1, wherein an angle of inclination which is included by the inflow edge and the lid plane is at least 1 degree.
3. Sterile container according to claim 1, wherein there is provided a protective element which covers the sterile filter at a spacing therefrom.
4. Sterile container according to claim 3, wherein the protective element is disposed on the outer side of the sterile container.
5. Sterile container according to claim 3, wherein the lid, on its outer side, has a seating surface for seating the protective element, which surrounds the gas exchange opening.
6. Sterile container according to claim 5, wherein the seating surface comprises an annular surface which runs parallel to the lid plane and is set back in the direction of the holding space.
7. Sterile container according to claim 5, wherein the protective element completely covers the gas exchange opening and the seating surface.
8. Sterile container according to claim 3, wherein there are provided support surfaces for the purpose of supporting the protective element connected to the lid.
9. Sterile container according to claim 3, wherein the protective element comprises spacing elements for maintaining a spacing between the protective element and the lid.
10. Sterile container according to claim 3, wherein the protective element comprises a reinforcing frame.
11. Sterile container according to claim 10, wherein the reinforcing frame comprises webs which cross one another and run substantially parallel to the lid plane.
12. Sterile container according to claim 11, wherein the spacing elements are formed by projections andor at least in part by the webs.
13. Sterile container according to claim 3, wherein there is provided at least one snap-action connection for connecting the protective element to the lid.
14. Sterile container according to claim 13, wherein the at least one snap-action connection is provided for connection of the protective element to a rim, which includes latching recesses, of the gas exchange opening.
15. Sterile container according to claim 13, wherein the at least one snap-action connection comprises elastic spring arms which project away from the protective element toward the lid and are provided with a latching projection.
16. Sterile container according to claim 3, wherein there is provided, between the protective element and the lid, at least one opening for the passage of gas, which is in fluid communication with the gas exchange opening.
17. Sterile container according to claim 16, wherein the opening for the passage of gas is arranged in such a way that it becomes possible for gas to flow in a direction of flow running substantially transversely with respect to the flow-permitting direction through the sterile filter.
18. Sterile container according to claim 16, wherein the opening for the passage of gas, in cross section, has a double-convex lens shape.
19. Sterile container according to claim 1, wherein the lid has at least one spacer element for stacking a further sterile container on the sterile container, so that gas exchange through the gas exchange opening is possible with stacked sterile containers.
20. Sterile container according to claim 3, wherein the lid has at least one spacer element for stacking a further sterile container on the sterile container, so that gas exchange through the gas exchange opening is possible with stacked sterile containers.
21. Sterile container according to claim 19, wherein the inflow edge is disposed between two spacer elements.
22. Sterile container according to claim 19, wherein the spacer elements comprise at least three projections facing away from the outer side of the sterile container.
23. Sterile container according to one of claim 19, wherein the seating surface is delimited by the at least one inflow edge and the at least one spacer element.
24. Sterile container according to claim 19, wherein the spacer elements comprise or adjoin the support surfaces.
25. Sterile container according to claim 19, wherein the lid, the at least one spacer element, the seating surface and the at least one inflow edge are formed integrally.
26. Sterile container according to claim 1, wherein there is provided a filter unit, which comprises the sterile filter, a carrier and a holding element, and wherein the sterile filter is held between the carrier and the holding element.
27. Sterile container according to claim 3, wherein there is provided a filter unit, which comprises the sterile filter, a carrier and a holding element, and wherein the sterile filter is held between the carrier and the holding element.
28. Sterile container according to claim 19, wherein there is provided a filter unit, which comprises the sterile filter, a carrier and a holding element, and wherein the sterile filter is held between the carrier and the holding element.
29. Sterile container according to claim 26, wherein the filter unit is in single-piece form, and wherein the carrier, the sterile filter and the holding element are nonreleasably connected to one another.
30. Sterile container according to claim 26, wherein the filter unit is mounted moveably, wherein the filter unit, in a closed position, closes a flow path and, in a flow-permitting position, opens the flow path, so that gas exchange in the closed position is possible only through the sterile filter and in the flow-permitting position is possible through the sterile filter andor through the flow path.
31. Sterile container according to claim 26, wherein there is provided a pressure-relief valve, wherein the pressure-relief valve is disposed in such a way that in a basic position it adopts a closed position, that it adopts a flow-permitting position when a pressure in the vicinity of the sterile container exceeds a pressure in the sterile container by a predetermined pressure difference, and wherein the pressure-relief valve comprises the filter unit.
32. Sterile container according to claim 1, wherein the gas exchange opening comprises at least one stiffening element for stiffening the lid.
33. Sterile container according to claim 32, wherein the at least one stiffening element is formed by a web which spans the gas exchange opening (26).
34. Sterile container according to claim 32, wherein the at least one reinforcing element is offset in a direction away from the holding space relative to the outer side of the lid.
35. Device according to claim 1, wherein there is provided a fluid-retaining element for preventing fluid from flowing in from the outer side of the lid through the gas exchange opening.
36. Device according to claim 3, wherein there is provided a fluid-retaining element for preventing fluid from flowing in from the outer side of the lid through the gas exchange opening.
37. Device according to claim 26, wherein there is provided a fluid-retaining element for preventing fluid from flowing in from the outer side of the lid through the gas exchange opening.
38. Device according to claim 35, wherein the fluid-retaining element is disposed on the outer side of the lid and surrounds the gas exchange opening at least in sections.
39. Device according to claim 35, wherein the fluid-retaining element is formed as a rim which protrudes from the outer side of the lid.
40. Device according to claim 35, wherein the fluid-retaining element is disposed at a spacing from the gas exchange opening.
41. Device according to claim 35, wherein the protective element completely covers the gas exchange opening and the fluid-retaining element.
42. Sterile container according to claim 1, wherein the lid is made from a plastic, in particular from polyether ether ketone (PEEK) or polyphenylene sulfone (PPSU).
43. Sterile container according to claim 3, wherein the lid is made from a plastic, in particular from polyether ether ketone (PEEK) or polyphenylene sulfone (PPSU).
44. Sterile container according to claim 35, wherein the lid is made from a plastic, in particular from polyether ether ketone (PEEK) or polyphenylene sulfone (PPSU).