1. A container comprising a body forming a container and at least two sealing surfaces and a cohesive reclosure adhered to the sealing surfaces, wherein the cohesive reclosure comprises two cohesive layers, wherein the bond strength between the cohesive layers is less than the bond strength between the cohesive layers and the sealing surfaces.
2. The container of claim 1 wherein the cohesive layers comprise a natural or synthetic rubber.
3. The container of claim 1 wherein the cohesive layers comprise a styrenic rubber.
4. The container of claim 1 wherein the container is a bag having an internal surface and an external surface.
5. The container of claim 4 wherein the cohesive reclosure and sealing surfaces are positioned on the internal surface of the bag.
6. The container of claim 4 wherein the sealing surfaces and cohesive reclosure are positioned on the external surface of the bag.
7. The container of claim 1 wherein the container is a box having an interior surface and an external surface.
8. The container of claim 7 wherein the cohesive reclosure and sealing surfaces are positioned on the internal surface of the box.
9. The container of claim 7 wherein the sealing surfaces and cohesive reclosure are positioned on the external surface of the box.
10. The container of claim 1 wherein the cohesive reclosure comprises two cohesive layers each having a first and second surface, wherein the first surfaces of the cohesive layers are bonded to each other and the second surfaces of the cohesive layers are each bonded to a carrier layer, and wherein the carrier layers are adhered to the sealing surfaces.
11. The container of claim 10 wherein the bond strength between the cohesive layers is less than the bond strength between (a) the cohesive layers and the carrier layers and (b) the carrier layers and the sealing surfaces.
12. The container of claim 10 wherein the carrier layer is heat sealable.
13. The composition of claim 10 further comprising an adherent layer positioned between each carrier layer and sealing surface.
14. The composition of claim 13 wherein the bond strength of the cohesive layers is less than the bond strength of (a) the cohesive layers and the carrier layers, (b) the carrier layers and the adherent layers; and (c) the adherent layers and the sealing surfaces.
15. The composition of claim 13 wherein the adherent layer is a heat sealable layer.
16. The composition of claim 13 wherein the adherent layer is an adhesive.
17. A cohesive reclosure comprising
at least one cohesive layer comprising styrene-isobutylene-styrene copolymer and
at least one cohesive target, wherein the cohesive layer is repeatedly removable and adherable to the cohesive target.
18. The cohesive reclosure of claim 17 further comprising a carrier layer permanently adhered to the cohesive layer.
19. The cohesive reclosure of claim 18 further comprising a tie layer between the cohesive layer and the carrier layer.
20. The cohesive reclosure of claim 17 wherein the cohesive layer comprises a blend of a styrene-isobutylene-styrene block copolymer and a second block copolymer.
21. The cohesive reclosure of claim 20 wherein the second block copolymer comprises styrene-ethylene-butylene-styrene copolymer.
22. The cohesive reclosure of claim 17 wherein the cohesive target comprises a second cohesive layer.
23. The cohesive reclosure of claim 22 wherein the second cohesive layer comprises styrene-isobutylene-styrene copolymer.
24. The cohesive reclosure of claim 17 wherein the cohesive target comprises a polymeric packaging film.
25. The cohesive reclosure of claim 24 wherein the packaging film comprises a polyolefin film.
26. The cohesive reclosure of claim 18 wherein the cohesive layer and the carrier layer are coextruded films.
27. A method of making a resealable package comprising:
applying a cohesive layer comprising a styrene-isobutylene-styrene copolymer to a first sealing surface of the package;
providing a cohesive target on a second sealing surface of the package;
wherein the cohesive layer is repeatedly removable and adherable to the cohesive target.
28. The method of claim 27 wherein the package comprises a polymeric film.
29. The method of claim 27 wherein the cohesive target comprises a second cohesive layer.
30. The method of claim 29 wherein the second cohesive layer comprises a styrene-isobutylene-styrene copolymer.
31. The method of claim 27 wherein the cohesive layer is extruded onto the first sealing surface of the package.
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 method comprising:
transforming a EEG signal to the frequency domain with a Discrete Fourier Transform using a processor,
obtaining an amplitude of each frequency component using the processor,
summing all of the amplitudes of frequencies in the range of 201-500 Hz to obtain a high frequency amplitude using the processor,
summing all of the amplitudes of frequencies in the range of 1 to at least 15 Hz to obtain a low frequency amplitude using the processor, and
calculating an Index based on a ratio of the high frequency amplitude to the low frequency amplitude using the processor.
2. The method according to claim 1, further comprising smoothing the Index using the processor.
3. The method according to claim 2, wherein smoothing the Index using a 10 point moving average.
4. The method according to claims 2, further comprising obtaining a slope value of the Index using the processor.
5. The method according to claim 1, wherein the low frequency amplitude is obtained for frequencies in the range of 1-20 Hz.
6. The method according to claim 1, further comprising:
obtaining an EEG signal, and
converting the EEG signal from analog to digital.
7. The method according to claims 6, further comprising smoothing the Index using a 10 point moving average using the processor.
8. The method according to claim 7, further comprising obtaining a slope value of the Index using the processor.
9. The method according to claim 1, further comprising summing all of the amplitudes of each frequency component to obtain a total amplitude using the processor.
10. The method according to claim 9, wherein obtaining the amplitude of each frequency component includes grouping the frequencies into frequency bands using the processor.
11. The method according to claim 10, wherein the frequency bands include 1-15 Hz, 16-50 Hz, 51-100 Hz, 101-200 Hz, 201-300 Hz, 301-400 Hz, and 401-500 Hz.
12. The method according to claim 10, wherein the frequency bands include 1-20 Hz, 21-50 Hz, 51-100 Hz, 101-200 Hz, 201-300 Hz, 301-400 Hz, and 401-500 Hz.
13. The method according to claim 10, wherein the frequency bands include 1-15 Hz, 16-50 Hz, 51-100 Hz, 101-200 Hz, and 201-500 Hz.
14. The method according to claim 1, wherein the amplitude of each frequency component is obtained by taking a square root of power for the respective frequency component.
15. The method according to claim 1, further comprising receiving the EEG signal from electrodes placed at the C3 and C4 locations.
16. The method according to claim 1, further comprising providing a notification when the Index is less than a threshold.
17. The method according to claim 16, wherein the threshold is equal to 1.
18. The method according to claim 16, wherein the threshold is equal to 0.8.
19. A method for determining an index representative of the level of alertnessdrowsiness of an individual comprising:
receiving an EEG signal from at least one electrode,
transforming the EEG signal into the frequency domain using a processor,
summing all of the amplitudes for each frequency band using the processor,
determining a total amplitude for all frequency bands using the processor,
determining the ratio of each frequency band to the total amplitude for at least the lowest and highest frequency band using the processor,
determining the index of the highest frequency band ratio to the lowest frequency band ratio using the processor, and
providing the index using the processor; and
wherein the highest frequency band begins above 60 Hz and has an end point that is less than or equal to 500 Hz.
20. The method according to claim 19, further comprising eliminating any sample whose total amplitude exceeds a mean total amplitude plus 2 standard deviations using the processor,
where mean total amplitude is calculated from an initial sampling period for the EEG.
21. The method according to claim 19, further comprising filtering out the power line frequency and its harmonics using at least one of the processor and at least one filter.
22. The method according to claim 19, wherein the highest frequency band is 201-500 Hz.
23. The method according to claim 19, wherein the lowest frequency band is 1-15 Hz.
24. The method according to claim 19, wherein the lowest frequency band is 1-20 Hz.
25. The method according to claim 19, wherein the amplitude of each frequency component is obtained by taking a square root of power for the respective frequency component.
26. The method according to claim 19, wherein at least one electrode includes one electrode placed at the C3 location and a second electrode placed at the C4 location.
27. A system comprising:
means for transforming an EEG signal to the frequency domain with a Discrete Fourier Transform,
means for obtaining the amplitude of each frequency component,
means for summing all of the amplitudes of each frequency component to obtain a total amplitude,
means for summing all of the amplitudes of frequencies in the range of 201-500 Hz to obtain a high frequency amplitude,
means for summing all of the amplitudes of frequencies in the range of 1 to at least 15 Hz to obtain a low frequency amplitude, and
means for calculating an Index based on the total amplitude, the high frequency amplitude, and the low frequency amplitude.
28. A system for providing an index for an individual using at least one EEG signal, said system comprising:
a Discrete Fourier transformer;
a low frequency path connected to an output of said Discrete Fourier transformer, said low frequency path includes
a low bandpass filter covering the low frequency band, and
a low frequency summation device connected to said low bandpass filter;
a high frequency path connected to an output of said Discrete Fourier transformer, said high frequency path includes
a high bandpass filter covering the high frequency band, and
a high frequency summation device connected to said high bandpass filter; and
a divider connect to said low frequency summation device and said high frequency summation device, said divider outputs a ratio of the output of said high frequency summation device to the output of said low frequency summation device.