1. A packaging arrangement, comprising:
a) an envelope defining a volume;
b) a sleeve positioned within the volume of the envelope, the sleeve including a back panel and a front panel, the front panel being located within a central region of the volume of the envelope when the sleeve is positioned within the envelope; and
c) a postcard positioned behind the back panel of the sleeve within the volume of the envelope, the postcard including a main portion and a tab, the tab being located outside the volume of the envelope when the main portion of the postcard is positioned within the envelope.
2. The arrangement of claim 1, wherein the postcard can be pulled out from the volume of the envelope by the tab without opening either of a first end or a second end of the envelope.
3. The arrangement of claim 2, wherein each of the first and second ends of the envelope is defined by side flaps that open and close, and wherein at least one of the side flaps remains closed when the postcard is pulled out from the volume of the envelope.
4. The arrangement of claim 1, wherein the front panel is a non-opaque construction.
5. The arrangement of claim 4, wherein the back panel is an opaque construction.
6. The arrangement of claim 5, wherein the back panel has a first opaque color that transitions into a second opaque color, and wherein the front panel has a first non-opaque color that transitions into a second non-opaque color, the location of the first and second opaque colors and the first and second non-opaque colors providing three-dimensional imagery.
7. The arrangement of claim 1, wherein the volume of the envelope is between about 40 and 325 cubic inches.
8. The arrangement of claim 1, wherein the volume of the envelope is defined by front and back walls and side flaps located at first and second ends of the envelope.
9. The arrangement of claim 8, wherein the each of the front and back walls includes first and second side flaps that fold over one another.
10. The arrangement of claim 9, wherein at least one of the first and second side flaps of at least one of the front and back walls includes indicia structure to indicate that the side flap can be opened to access the content of the envelope.
11. The arrangement of claim 10, wherein the indicia structure is a thumb notch formed in the at least one side flap of the envelope.
12. The arrangement of claim 8, wherein a folding portion of the postcard is positioned between the first side flaps of the front and back walls at the first end of the envelope.
13. The arrangement of claim 12, wherein the tab of the postcard extends out from the side flaps so that a recipient can grasp the tab to pull the postcard out from the volume of the envelope.
14. The arrangement of claim 8, wherein the front and back walls of the envelope have a convex curvature.
15. The arrangement of claim 14, wherein the first and second ends of the envelope have a concave curvature.
16. The arrangement of claim 14, wherein the back panel of the sleeve has a convex curvature corresponding to the convex curvature of the back wall of the envelope.
17. The arrangement of claim 16, wherein the front panel is planar.
18. The arrangement of claim 1, wherein the sleeve is size and configured to slide into and out from the volume of the envelope.
19. The arrangement of claim 18, further including a sample product secured to the sleeve, the sample product being accessible by sliding the sleeve out from the volume of the envelope.
20. The arrangement of claim 1, wherein the envelope is sized for direct mailing without additional packaging or wrap.
21. A method of assembling a packaging arrangement, the method comprising the steps of:
a) providing an envelope having a volume, the envelope having a first end and a second end;
b) inserting a sleeve into the volume of the envelope, the sleeve including a back panel and a front panel, the front panel being located in a central region of the volume when the sleeve is inserted into the volume;
c) sliding a postcard into the volume of the envelope behind the back panel, the postcard including a folding portion and a tab; and
d) enclosing the volume of the envelope by closing side flaps located at the first and second ends of the envelope, the folding portion and the tab of the postcard being located outside the volume of the envelope when the first and second ends of the envelope are enclosed.
22. The method of claim 21, further including the step of placing an article within the volume of the envelope.
23. The method of claim 21, further including providing informational material on at least one of the postcard and the sleeve.
24. The method of claim 23, wherein the step of providing informational material includes securing an article to the front panel of the sleeve.
25. The method of claim 23, wherein the step of providing informational material includes providing printed information on the postcard.
26. The method of claim 23, wherein the step of providing informational material includes providing printed graphics on at least one of the front panel and the back panel of the sleeve.
27. The method of claim 21, wherein the step of enclosing the volume of the envelope includes positioning the folding portion of the postcard between the side flaps such that the tab extends outward from the side flaps.
28. The method of claim 21, further including the step of securing the tab of the postcard to an exterior surface of the envelope.
29. The method of claim 28, wherein the step of securing the tab includes adhering the tab to the exterior surface with a removable adhesive.
30. The method of claim 21, wherein the step of providing an envelope includes providing an envelope sized and constructed to be directly mailed without additional packaging or wrap.
31. A method of using a packaging arrangement, the method comprising the steps of:
a) providing a packaging arrangement, the arrangement including:
i) an envelope having a volume;
ii) a sleeve positioned within the volume of the envelope; and
iii) a postcard having a main portion and a tab, the main portion of the postcard being positioned within the volume of the envelope, the tab being positioned outside the volume of the envelope; and
b) pulling the tab of the postcard and sliding the main portion of the postcard out from the volume of the envelope without opening the envelope.
32. The method of claim 31, wherein the step of providing the packaging arrangement includes providing a sleeve having a back panel and a front panel, the front panel being located in a central region of the volume.
33. The method of claim 32, wherein the step of sliding the main portion of the postcard out from the volume of the envelope includes sliding the main portion out from behind the back panel of the sleeve.
34. The method of claim 31, wherein the step of providing the packaging arrangement includes providing an envelope having side flaps located at each of a first end and a second end of the envelope.
35. The method of claim 34, wherein the step of pulling the tab includes opening a first side flap located at the first end of the envelope.
36. The method of claim 35, further including the step of opening a second side flap at the first end to access the volume of the envelope.
37. The method of claim 36, further including sliding the sleeve out from the volume of the envelope, through the opened first end of the envelope.
38. The method of claim 37, further including detaching an article from the sleeve of the packing arrangement.
39. The method of claim 31, further including the step of detaching the tab of the postcard from an exterior surface of the envelope before pulling the tab.
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 digital frequencyphase recovery circuit for generating a sampling clock according to a frequency and a phase of an input signal, comprising:
a comparator with hysteresis for receiving the input signal to generate a comparison signal, wherein the comparison signal is set to state \u201cHigh\u201d when the level of the input signal is higher than a high reference voltage, and the comparison signal is set to state \u201cLow\u201d when the level of the input signal is lower than a low reference voltage;
a counter for receiving the comparison signal, calculating the number of pulses of the comparison signal in one period relating to a counting clock, and outputting a pulse value, wherein the frequency of the counting clock being higher than that of the comparison signal;
a frequency determiner for receiving the pulse value, calculating the frequency of the input signal according to the pulse value, and generating a frequency value;
a multi-phase clock generator for receiving the frequency value and generating multi-phase reference clocks with identical frequency and distinct phases according to the frequency value;
a transition detector for receiving the comparison signal and generating a transition signal, wherein the transition signal is enabled for a preset period as the comparison signal is changing from a high level to a low level or from the low level to the high level;
a phase adjuster for receiving the transition signal and the sampling clock and generating a phase selection signal according to the phase relationship between the sampling clock and the transition signal; and
a multiplexer for receiving the multi-phase reference clocks and selecting one reference clock as the sampling clock according to the phase selection signal.
2. The digital frequencyphase recovery circuit as claimed in claim 1, wherein the multi-phase clock generator comprises:
a digital to analog converter for receiving the frequency value and converting the frequency value into a control signal; and
a digital control oscillator for receiving the control signal and generating the multi-phase reference clocks.
3. The digital frequencyphase recovery circuit as claimed in claim 1, wherein the frequency determiner computes an average of multiple pulse values neighboring a smallest pulse value and divides the average by the period corresponding to the smallest pulse value to acquire the frequency value.
4. The digital frequencyphase recovery circuit as claimed in claim 1, wherein the frequency determiner computes an average of multiple pulse values neighboring a largest pulse value and divides the average by the period corresponding to the largest pulse value to acquire the frequency value.
5. The digital frequencyphase recovery circuit as claimed in claim 1, wherein the phase adjuster comprises:
a delay unit for receiving the sampling clock and delaying the sampling clock with a fixed time to generate a delay signal;
a phase detector for receiving the delay signal and the transition signal and comparing their phase difference to generate phase control signals; and
a updown counter for receiving the phase control signals and adjusting a phase selection signal according to the phase control signals;
wherein the phase selection signal is added by one unit as the phase of the delay signal advances that of the transition signal, while the phase selection signal is subtracted by one unit as the phase of the delay signal lags behind that of the transition signal.