1. A method for detecting an ozone gas,
comprising a step of placing an ozone gas detection indicator in an ozone gas treatment device, and confirming a color difference in the indicator,
wherein the ozone gas detection indicator comprises a color changing layer for detecting an ozone gas formed of an ink composition that has a plurality of cracks in the surface of the color changing layer,
wherein the ink composition for detecting an ozone gas comprises
at least one selected from the group consisting of azo dye, methine dye and triarylmethane dye,
a nitrogen-containing polymer,
a resin binder, wherein all or a portion of the resin binder is a cellulose resin,
and
a cationic surfactant.
2. The method for detecting an ozone gas according to claim 1, wherein the cationic surfactant is at least one selected from the group consisting of an alkyl trimethyl ammonium salt, isoquinolinium salt, imidazolinium salt and pyridinium salt.
3. The method for detecting an ozone gas according to claim 1, wherein the ink composition further comprises at least one selected from the group consisting of extender and resin binder.
4. The method for detecting an ozone gas according to claim 1, wherein the ink composition further comprises at least one type of colorant which does not change color in an oxidizing gas atmosphere.
5. The method for detecting an ozone gas according to claim 1, wherein the ink composition further comprises an anthraquinone dye as a dye.
6. The method for detecting an ozone gas according to claim 1, wherein the ink composition further comprises a non-color changing layer which does not change color in an oxidizing gas atmosphere.
7. An indicator for detecting hydrogen peroxide plasma sterilization, comprising a color changing layer formed of an ink composition, which has a plurality of cracks in the surface of the color changing layer,
wherein the ink composition comprises:
1) at least one selected from the group consisting of azo dye and methine dye,
2) a nitrogen-containing polymer,
3) a cationic surfactant, and
4) a resin binder, wherein all or a portion of the resin binder is a cellulose resin.
8. The indicator according to claim 7, wherein all or a portion of the nitrogen-containing polymer is a polyamide resin.
9. The indicator according to claim 8, wherein the polyamide resin is a reaction product of a dimer of linoleic acid and a di- or polyamine.
10. The indicator according to claim 7, wherein the cationic surfactant is at least one selected from the group consisting of an alkyl trimethyl ammonium salt, isoquinolinium salt, imidazolinium salt and pyridinium salt.
11. The indicator according to claim 7, which further comprises an extender.
12. The indicator according to claim 11, wherein all or a portion of the extender is silica.
13. The indicator according to claim 7, wherein the content of the nitrogen-containing polymer is 1 to 20% by weight of the ink composition.
14. The indicator according to claim 7, which further comprises at least one type of colorant which does not change color in a plasma sterilization treatment atmosphere.
15. The indicator according to claim 7, which further comprises at least one type of component which changes color by reacting with hydrogen peroxide.
16. The indicator according to claim 15, wherein the component which changes color by reacting with hydrogen peroxide contains ammonium aurintricarboxylate.
17. The indicator according to claim 7, which further comprises at least one type of organic amine.
18. The indicator according to claim 7, which further comprises a non-color changing layer which does not change color in a plasma sterilization treatment atmosphere.
19. The indicator according to claim 7, which further comprises a colored layer which changes color in a hydrogen peroxide atmosphere.
20. The indicator according to claim 19, wherein the colored layer and the color changing layer are formed so as to be mutually overlapping.
21. The indicator according to claim 20, wherein the colored layer and the color changing layer are formed in a linear or spotted pattern so as not to be mutually overlapping.
22. A pouch for hydrogen peroxide plasma sterilization provided with the indicator according to claim 7 on an inner surface of a gas-permeable pouch.
23. The pouch according to claim 22, which is provided with a transparent window in a portion of the pouch so as to allow visual confirmation of the indicator from the outside.
24. The pouch according to claim 22, wherein the gas-permeable pouch is formed from polyethylene fibers.
25. A hydrogen peroxide plasma sterilization treatment method, comprising the steps of loading a treated material into the pouch according to claim 22, sealing the pouch with the treated material loaded therein, and placing the pouch in a hydrogen peroxide plasma sterilization atmosphere.
26. The method according to claim 25, wherein the pouch is placed in the hydrogen peroxide plasma sterilization atmosphere until the color changing layer of the indicator changes color.
27. A method for confirming hydrogen peroxide plasma sterilization treatment, comprising the steps of loading a treated material into the pouch according to claim 22, sealing the pouch with the treated material sealed therein, placing the pouch in a hydrogen peroxide plasma sterilization atmosphere, and confirming a color difference in the indicator of the pouch.
28. A method for detecting a hydrogen peroxide gas, comprising a step of placing a hydrogen peroxide gas detection indicator in a hydrogen peroxide gas treatment device, and confirming a color difference in the indicator,
wherein the hydrogen peroxide gas detection indicator comprises a color changing layer formed of an ink composition for detecting a hydrogen peroxide gas having a plurality of cracks in the surface of the color changing layer,
wherein the ink composition for detecting a hydrogen peroxide gas comprises
methine dye;
a nitrogen-containing polymer;
a resin binder, wherein all or a portion of the resin binder is a cellulose resin; and
a cationic surfactant.
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 queuing system comprising:
a first FIFO memory for receiving a frames comprised of a header and encrypted frame contents;
a second FIFO memory for receiving the header and encrypted frame contents from the first FIFO memory, wherein the second FIFO is adapted to concurrently store a plurality of frames; and
a stream cipher engine for decrypting the encrypted frame contents stored in the second FIFO memory; and
wherein the frame propagates through the first FIFO to the second FIFO while it is being received;
wherein after a portion of the header that includes data indicative of a lookup key for the frame is processed by the first FIFO memory and while at least a portion of the frame contents is being propagated from the first FIFO memory to the second FIFO memory, the stream cipher engine responsive to the data indicative of a lookup key performs a key lookup to decrypt the frame.
2. A queuing system according to claim 1, wherein said encrypted frame contents are read out of the second FIFO in response to completion of a data processing operation.
3. A queuing system according to claim 2, wherein said data processing operation includes initialization of a decryption algorithm.
4. A queuing system according to claim 3, wherein the frame contents that are encrypted are decrypted as read out of the second FIFO memory.
5. A queuing system according to claim 2, wherein the encrypted frame contents are periodically received by said first FIFO memory at a rate that is higher than the rate of the data processing operation.
6. A queuing system according to claim 1, wherein said first FIFO memory is smaller in size than said second FIFO memory.
7. A queuing system according to claim 1, wherein said second FIFO memory stores identifier data for identifying frame content associated with the end of a frame.
8. A queuing system according to claim 1, wherein a key is identified and a decryption algorithm is initialized for each frame in order to perform decryption of encrypted frame content, wherein said key is identified using a header portion of a frame.
9. A queuing system according to claim 1, wherein said second FIFO memory stores a flag indicative of at least one of: end of a frame and frame validity.
10. The queuing system of claim 1, further comprising a processor receiving the decrypted contents from the cipher engine.
11. The queuing system of claim 10, wherein the cipher engine sends a signal to the processor once it has completed initialization and key loading.
12. The queuing system of claim 11, wherein the processor retrieves the frame from the cipher engine responsive to the signal from the cipher engine.
13. The queuing system of claim 1, further comprising a CRC register for performing a data validity check for received frames, wherein the CRC register outputs signal to the second FIFO indicative the validity of the frame.
14. The queuing system of claim 13, wherein said first FIFO memory transmits an interrupt to the processor in response to completing receipt of a valid frame, said processor re-initializing said first FIFO memory for receipt of a subsequent.
15. The queuing system of claim 14, wherein the interrupt is a high priority interrupt that preempts other processes.
16. The queuing system of claim 15, wherein processing of first frame continues even while the interrupt is being processed.
17. A queuing system comprising:
a register for performing a data validity check for received frames;
first memory means for receiving frames comprised of a header and encrypted frame contents, wherein said first memory means transmits an interrupt to an associated processing means in response to completing receipt of a valid frame, said processor re-initializing said first memory means for receipt of a subsequent frame;
second memory means for receiving the encrypted frame contents from the first memory means wherein the second memory means is adapted to concurrently store a plurality of frames; and
a stream cipher engine for decrypting the encrypted frame contents received from the second memory means in response to the data validity check;
wherein after a portion of the header that includes data indicative of a lookup key for the frame is processed by the first memory means and while at least a portion of the frame contents is being propagated from the first memory means to the second memory means, the stream cipher engine responsive to the data indicative of a lookup key performs a key lookup to decrypt the frame.
18. A queuing system according to claim 17, wherein said encrypted frame contents are read out of the second memory means in response to completion of a data processing operation.
19. A queuing system according to claim 18, wherein said data processing operation includes initialization of a decryption algorithm.
20. A queuing system according to claim 19, wherein the frame contents that are encrypted are decrypted as read out of the second memory means.
21. A queuing system according to claim 18, wherein the encrypted frame contents are periodically received by said first memory means at a rate that is higher than the rate of the data processing operation.
22. A queuing system according to claim 17, wherein said first memory means is smaller in size than said second memory means.
23. A queuing system according to claim 17, wherein said second memory means stores identifier data for identifying frame content associated with at least one of: end of a frame and frame validity.
24. A queuing system according to claim 17, wherein a key is identified and a decryption algorithm is initialized for each frame in order to perform decryption of encrypted frame content, wherein said key is identified using a header portion of a frame.
25. A queuing system according to claim 17, wherein said second memory means stores a flag indicative of at least one of: end of a frame and frame validity.
26. A queuing method comprising:
performing a data validity check for frames;
writing the frames comprised of encrypted frame contents into a first memory, wherein said first memory transmits an interrupt to an associated processor in response to completing receipt of a valid frame;
re-initializing said first memory for receipt of a subsequent frame in response to the interrupt;
transferring the encrypted frame contents from the first memory to a second memory wherein the second memory is adapted to concurrently store a plurality of frames; and
decrypting the encrypted frame contents received from the second memory in response to the data validity check;
searching for a key for decrypting the encrypted frame contents while the encrypted frame contents are being transferred from the first memory to the second memory.
27. A queuing method according to claim 26, wherein said encrypted frame contents are read out of the second memory in response to completion of a data processing operation.
28. A queuing method according to claim 27, wherein said data processing operation includes a step of initializing a decryption algorithm.
29. A queuing method according to claim 28, wherein said method further comprises decrypting encrypted frame contents when read out of said second memory.
30. A queuing method according to claim 27, wherein the encrypted frame contents are periodically received by said first memory at a rate that is higher than the rate of the data processing operation.
31. A queuing method according to claim 26, wherein said first memory is smaller in size than said second memory.
32. A queuing method according to claim 26, wherein said second memory stores identifier data for identifying frame content associated with at least one of: end of a frame and frame validity.
33. A queuing method according to claim 26, wherein a key is identified and a decryption algorithm is initialized for each frame in order to perform decryption of encrypted frame content, wherein said key is identified using a header portion of a frame.
34. A queuing method according to claim 26, wherein said second memory stores a flag indicative of at least one of: end of a frame and frame validity.