1. A solid-state imaging device comprising:
a pixel circuit; and
a pixel signal readout circuit including a comparator, the comparator comprising:
a first circuit including a first transistor that receives a pixel signal from the pixel circuit, and a second transistor that receives a reference signal, and
a second circuit including a third transistor coupled to the first circuit and a first predetermined voltage line, a fourth transistor coupled to the third transistor in series and to a second predetermined voltage line, a fifth transistor coupled to a gate of the fourth transistor and one of a drain or a source of the fourth transistor, and a sixth transistor coupled to the first predetermined voltage line and the fifth transistor in series.
2. The solid-state imaging device according to claim 1, wherein a gate of the third transistor is coupled to the first circuit.
3. The solid-state imaging device according to claim 1, wherein the first circuit is configured to perform a comparison operation of the pixel signal and the reference signal.
4. The solid-state imaging device according to claim 3, wherein the second circuit is configured to output a determination signal according to a result of the comparison operation performed by the first circuit.
5. The solid-state imaging device according to claim 1, wherein a gate of the first transistor is configured to receive the pixel signal.
6. The solid-state imaging device according to claim 5, wherein a gate of the second transistor is configured to receive the reference signal.
7. The solid-state imaging device according to claim 1, wherein the second circuit includes a seventh transistor disposed between a gate of the fourth transistor and a drain or a source of the fourth transistor.
8. The solid-state imaging device according to claim 7, wherein the third transistor has a first conductivity type; and the fourth, sixth, and seventh transistors respectively have a second conductivity type.
9. The solid-state imaging device according to claim 8, wherein the first conductivity type is a p-type and the second conductivity type is an n-type.
10. The solid-state imaging device according to claim 1, wherein a drain of the third transistor is coupled to a drain of the fourth transistor.
11. The solid-state imaging device according to claim 1, wherein a source of the third transistor is coupled to a source of the fourth transistor.
12. An electronic apparatus comprising:
an optical system;
a solid-state imaging device including;
a pixel circuit; and
a pixel signal readout circuit including a comparator, the comparator comprising:
a first circuit including a first transistor that receives a pixel signal from the pixel circuit, and a second transistor that receives a reference signal, and
a second circuit including a third transistor coupled to the first circuit and a first predetermined voltage line, a fourth transistor coupled to the third transistor in series and to a second predetermined voltage line, a fifth transistor coupled to the a gate of the fourth transistor and one of a drain or a source of the fourth transistor, and a sixth transistor coupled to the first predetermined voltage line and the fifth transistor in series.
13. The electronic apparatus according to claim 12, wherein a gate of the third transistor is coupled to the first circuit.
14. The electronic apparatus according to claim 13, wherein the first circuit is configured to perform a comparison operation of the pixel signal and the reference signal.
15. The electronic apparatus according to claim 13, wherein the second circuit is configured to output a determination signal according to a result of the comparison operation performed by the first circuit.
16. The electronic apparatus according to claim 12, wherein a gate of the first transistor is configured to receive the pixel signal.
17. The electronic apparatus according to claim 16, wherein a gate of the second transistor is configured to receive the reference signal.
18. The electronic apparatus according to claim 12, wherein the second circuit includes a seventh transistor disposed between a gate of the fourth transistor and a drain or a source of the fourth transistor.
19. The electronic apparatus according to claim 18, wherein the third transistor has a first conductivity type; and the fourth, sixth, and seventh transistors respectively have a second conductivity type.
20. The electronic apparatus according to claim 19, wherein the first conductivity type is a p-type and the second conductivity type is an n-type.
21. The electronic apparatus according to claim 12, wherein a drain of the third transistor is coupled to a drain of the fourth transistor.
22. The electronic apparatus according to claim 12, wherein a source of the third transistor is coupled to a source of the fourth transistor.
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 temple for eyeglasses provided with a wire or a portion of a wire used to hold glasses, comprising:
two coupled parts which are shaped in such a way as to form complementary parts of a peripheral wall which delimitates a cavity forming a housing for at least part of the wire, said housing being substantially shaped as a serpentine;
holding means for blocking an end of the wire into the housing;
an opening which is disposed at the end of at least one of two parts; through said opening the wire passing and coming out outwardly when pulled down, with possibility of be adjusted;
means for returning the wire inside its housing when it is not used, as an elastic band, a spring or other means which allows the recovery of the wire.
2) The temple of claim 1, wherein the temple is provided with releasable means for blocking the wire once extracted, as a flange, a groove, a lock or similar, which blocks the wire and stops moving and prevent the return within its housing.
3) The temple of claim 1, wherein the two parts are coupled by ultrasonic welding.
4) The temple of claim 1, wherein the holding means for blocking an end of the wire into the housing comprises a tooth which reduces the width of the housing so that when the two parts are coupled the end of the wire disposed above the tooth is crushed and then firmly retained in position near an end of the temple.
5) The temple of claim 1, wherein the housing has a sharp double change of direction for facilitatingenabling the locking of the end of the wire.
6) The temple of claim 1, wherein the supporting wire of the eyeglasses consists of a first single portion made of rope, thin chain, or other suitable material, joined with a second portion of elastic wire disposed at an end of the housing, so that, for extracting the wire, it is sufficient to pull the same wire till the second portion is tightened and maintained in a stretched configuration blocking the wire in the inner of the housing or in another way.
7) The temple of claim 1, wherein the wire is pulled inside the housing by the force exerted by the elastic wire which reduces the initial stretch.
8) The temple of claim 1, wherein the serpentine has a single loop, said loop being disposed substantially near the end of the temple opposite to the end in which are located the holding means, the housing being suitable for containing the wire for a length of about twice the length of the temple.
9) The temple of claim 1, wherein the serpentine has many loops arranged transversely in respect of the longitudinal extent of the temple, the holding means of the wire being placed distally in respect to the end of the temple provided with the opening from which the wire comes out.
10) The temple of claim 1, wherein the serpentine has many loops arranged longitudinally so that the wire may be disposed on portions which are parallel in respect to the longitudinal extent of the temple.
11) The temple of claim 1, wherein it is provided with a block, disposed in the point or in the points of curvature of the serpentine, for preventing the wire (2, 2\u2032) to escape from the curvature when the same wire is inserted in the loop.