1. A shade for attachment to a child carrier between a foot portion of the child carrier and a canopy portion of the child carrier, the shade comprising:
a first cuff adapted to receive the foot portion of the child carrier and secure the shade to the foot portion;
an edge located opposite to the first cuff and adapted to secure to the canopy portion of the child carrier; and
a cover extending between the first cuff and the edge, wherein the cover defines opposed first and second sides.
2. The shade of claim 1, wherein the edge is adapted to secure to a handle portion of the child carrier.
3. The shade of claim 1, further comprising a back strap extending between the first and second sides of the cover, the back strap dimensioned to extend around the child carrier from the first side of the cover to the second side of the cover.
4. The shade of claim 3, wherein the back strap includes a releasable connector selected from the group consisting of: cooperating pieces of hook-and-loop fastener, cooperating hooks, a buckle, and a clip.
5. The shade of claim 1, further comprising a first hook or clip extending from the first side of the cover and adapted to engage a portion of the child carrier to retain the shade on the child carrier.
6. The shade of claim 5, further comprising a second hook or clip extending from the second side of the cover and adapted to engage a portion of the child carrier to retain the shade on the child carrier.
7. The shade of claim 1, further comprising:
a channel extending around at least a portion of a perimeter of the shade;
a cord extending through the channel, the cord having first and second ends; and
at least one locking mechanism adapted to secure the cord within the channel.
8. The shade of claim 7, wherein the cord is elastic.
9. The shade of claim 1, further comprising an elastic reinforcement band located at the edge opposite to the first cuff.
10. The shade of claim 1, further comprising a second cuff located at the edge opposite to the first cuff, wherein the second cuff is adapted to receive a leading edge of the canopy portion of the child carrier.
11. The shade of claim 10, wherein the second cuff includes a second cuff opening to receive the leading edge of the canopy portion, and the second cuff opening includes at least one elastic reinforcement band.
12. The shade of claim 10, wherein the second cuff includes a cuff extension connected by at least one line of stitching or seam.
13. The shade of claim 1, wherein the first cuff includes a first cuff opening to receive the foot portion of the child carrier, and the first cuff opening includes at least one elastic reinforcement band.
14. The shade of claim 1, further comprising at least one connector located at the edge opposite to the first cuff, the at least one connector adapted to connect the edge to a leading edge of the canopy portion of the child carrier, the connector selected from the group consisting of: a magnet, a clip, and a c-channel.
15. The shade of claim 1, further comprising at least one window located in the cover.
16. The shade of claim 15, wherein the window is defined by a first layer of material and a second layer of material overlapping the first layer, wherein the first layer is elastically movable away from the second layer to open the window.
17. The shade of claim 15, wherein the window comprises a layer of mesh and a second layer of material overlapping the mesh, wherein the second layer of material is elastically movable away from the mesh to expose the mesh.
18. The shade of claim 17, further comprising at least one fastener adapted to hold the second layer of material over the layer of mesh, wherein the at least one fastener is selected from the group consisting of: a magnet, cooperating pieces of hook-and-loop material, and a zipper.
19. The shade of claim 1, further comprising a pocket located in the cover, wherein the shade is adapted to fold substantially entirely into the pocket.
20. The shade of claim 1, wherein the child carrier comprises a car seat, a stroller, a stroller toddler seat, or a bassinette.
21. The shade of claim 1, wherein the cover defines first and second sides, each extending substantially from the first cuff to the edge opposite to the first cuff, wherein at least one of the first and second sides is dimensioned to provide an access port to a seat portion of the child carrier between the respective side and the child carrier.
22. A shade for attachment to a child carrier, the shade comprising:
a first cuff adapted to receive a foot portion of the child carrier and secure the shade to the foot portion;
an edge located opposite to the first cuff;
a cover extending between the first cuff and the edge, wherein the cover defines opposed first and second sides; and
a reinforcement member extending from at least one of the first and second sides of the cover, the reinforcement member adapted to connect at least one of the first and second sides to the child carrier.
23. The shade of claim 22, wherein the reinforcement member comprises a back strap extending between the first and second sides of the cover, the back strap dimensioned to extend around the child carrier from the first side of the cover to the second side of the cover.
24. The shade of claim 22, wherein the reinforcement member comprises a hook or clip extending from at least one of the first and second sides of the cover.
25. The shade of claim 1, wherein the first cuff includes a first cuff opening to receive the foot portion of the child carrier, and the first cuff opening includes at least one elastic reinforcement band.
26. A method for attaching a shade to a child carrier, comprising:
placing a first cuff of the shade over a foot portion of the child carrier;
stretching the shade away from the foot portion of the child carrier toward a canopy portion of the child carrier; and
securing at least one of a first side and a second side of the shade to the child carrier using at least one reinforcement member.
27. The method of claim 26, further comprising securing an edge of the shade opposite to the first cuff to a leading edge of the canopy portion of the child carrier.
28. The method of claim 27, further comprising securing the edge of the shade opposite to the first cuff to a handle portion of the child carrier.
29. The method of claim 27, wherein securing an edge of the shade to the leading edge of the canopy portion comprises securing a second cuff of the shade over the leading edge of the canopy portion.
30. The method of claim 26, wherein the reinforcement member comprises a backstrap that a user secures around the child carrier from the first side of the shade to the second side of the shade.
31. The method of claim 26, wherein the reinforcement member comprises a hook or clip located on at least one of the first side or the second side of the shade that a user attaches to the child carrier.
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 sense amplifier for sensing data stored in a first memory cell and a second memory cell of a memory, the sense amplifier comprising:
a reference level setting circuit for setting a reference voltage according to reference data;
a comparator circuit for comparing a sensing voltage with the reference voltage to correspondingly generate an output voltage;
a first level setting circuit for setting a first voltage according to a first bit-line voltage corresponding to the first memory cell in response to a first clock signal;
a second level setting circuit for setting a second voltage according to a second bit-line voltage corresponding to the second memory cell in response to a second clock signal whose phase is different from the first clock signal; and
a switch circuit for providing the first voltage as the sensing voltage in response to the first clock signal and providing the second voltage as the sensing voltage in response to the second clock signal, respectively.
2. The sense amplifier according to claim 1, wherein the switch circuit further comprises:
a first switch comprising a first input end and a second input end respectively coupled to the first level setting circuit for receiving the first voltage and coupled to the comparator circuit; and
a second switch comprising a first input end and a second input end respectively coupled to the second level setting circuit for receiving the second voltage and coupled to the comparator circuit.
3. The sense amplifier according to claim 1, wherein the first level setting circuit comprises:
a first node having the first voltage;
a first transistor, which turns on in response to an enabled level of the first clock signal to make the first voltage approach a high voltage;
a second transistor having a first sourcedrain coupled to a first bit line corresponding to the first memory cell to receive the first bit-line voltage, a second sourcedrain coupled to the first node, and a gate for receiving a first control voltage, wherein the second transistor is controlled, by the first control voltage, to make the first voltage approach a low voltage; and
an inverter for generating the first control voltage in response to the first bit-line voltage.
4. The sense amplifier according to claim 3, wherein the first level setting circuit further comprises:
a third transistor for biasing the first voltage in response to the high voltage.
5. The sense amplifier according to claim 1, wherein the second level setting circuit comprises:
a second node having the second voltage;
a fourth transistor, which turns on in response to the second clock signal to make the second voltage approach a high voltage;
a fifth transistor having a first sourcedrain coupled to a second bit line corresponding to the second memory cell to receive the second bit-line voltage, a second sourcedrain coupled to the second node, and a gate for receiving a second control voltage, wherein the fifth transistor is controlled, by the second control voltage, to make the second voltage approach the low voltage; and
an inverter for generating the second control voltage in response to the second bit-line voltage.
6. The sense amplifier according to claim 5, wherein the second level setting circuit further comprises:
a sixth transistor for biasing the second voltage in response to the high voltage.
7. The sense amplifier according to claim 1, wherein a phase difference between the first clock signal and the second clock signal is 180 degrees.
8. The sense amplifier according to claim 7, wherein a duty cycle of each of the first clock signal and the second clock signal at the enabled level is greater than or substantially equal to 50%.
9. The sense amplifier according to claim 1, wherein the memory comprises a double data line column decoder and the first and the second bit-line voltages received by the sense amplifier are provided from the double data line column decoder.
10. The sense amplifier according to claim 1, wherein the sense amplifier senses the data stored in the first memory cell and the second memory cell in one clock cycle.
11. The sense amplifier according to claim 1, further comprising:
a latch circuit for sampling and temporarily storing the output voltage in response to a driving edge of a sampling clock signal.
12. A data sensing method for sensing data stored in a first memory cell and a second memory cell of a memory, the data sensing method comprising the steps of:
(a) setting a first voltage according to a first bit-line voltage corresponding to the first memory cell in response to a first clock signal;
(b) providing the first voltage as a sensing voltage in response to the first clock signal;
(c) comparing the sensing voltage with a reference voltage to correspondingly generate a first output voltage;
(d) setting a second voltage according to a second bit-line voltage corresponding to the second memory cell in response to a second clock signal, wherein there is a phase difference between the first and second clock signals;
(e) providing the second voltage as the sensing voltage in response to the second clock signal; and
(f) comparing the sensing voltage with the reference voltage to correspondingly generate a second output voltage.
13. The data sensing method according to claim 12, further comprising, after the step (c), the step of:
(g) sampling and temporarily storing the first output voltage in response to a first driving edge of a sampling clock signal.
14. The data sensing method according to claim 12, further comprising, after the step (f), the step of:
(h) sampling and temporarily storing the second output voltage in response to a second driving edge of a sampling clock signal.