1. A detector comprising:
a housing;
first and second acoustic transducers, carried by the housing, one transducer is omnidirectional, the other is highly directional, and
control circuits carried by the housing, coupled to the transducers with the control circuits including processing circuitry to evaluate signals from the transducers to detect if an indicator of a glassbreak has been received.
2. A detector as in claim 1 which includes at least one of analog or digital conditioning circuits to process signals from the transducers.
3. A detector as in claim 2 where the control circuits receive processed signals from the conditioning circuits and evaluate those signals for the presence of false alarms.
4. A detector as in claim 3 where the control circuitry includes circuitry to evaluate the processed signals for the presence of at least one glass breakage profile.
5. A detector as in claim 3 where the control circuitry includes circuitry to evaluate a direction of origin of the at least one of the conditioned signals.
6. A detector as in claim 5 where the other transducer is receptive of sounds from the direction of origin and is less receptive of sounds from different directions, and wherein the control circuitry includes circuitry to evaluate differences in conditioned signals from the first and second transducers.
7. A detector as in claim 6 which includes circuitry to evaluate the conditioned signals for the presence of a glass breakage profile.
8. A detector as in claim 6 which includes circuitry to evaluate the conditioned signals for the presence of false alarms.
9. A detector as in claim 3 where the one transducer comprises an omnidirectional microphone and the other comprises a transducer with an arcuate sound response which extends over an angle substantially less than one hundred twenty degrees.
10. A detector as in claim 3 which includes storage circuits for installation and setup data, logged events, or operational parameters.
11. A detector as in claim 10 which includes interface circuitry, coupled to the control circuits and the storage circuits wherein information in the storage circuits can be retrieved.
12. A glassbreak detector comprising:
an omnidirectional audio sensor;
a directional audio sensor; and
control circuits coupled to the sensors, wherein the control circuits implement directional information processing, responsive to signals received from the sensors, and determine if the received signals are indicative of glass breaking.
13. A detector as in claim 12 where the control circuits determine if the received signals are indicative of a false alarm.
14. A detector as in claim 12 which includes storage circuitry, coupled to the control circuits wherein at least one of operational parameters, installation data, or information relative to logged events can be stored substantially in real-time and subsequently retrieved.
15. A detector as in claim 12 wherein the omnidirectional audio sensor comprises an omnidirectional microphone, and the directional audio sensor comprises a mems-type directional sensor.
16. A method comprising:
sensing audio omnidirectionally;
sensing audio from a target direction;
combining the audio to establish a composite profile; and
evaluating the profile to establish the presence of a predetermined condition.
17. A method as in claim 16 which includes determining if the profile is indicative of breaking glass.
18. A method as in claim 16 which includes determining if the profile is indicative of a false alarm.
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 polymer comprising at least recurring units derived from a polymerizable ester compound having any one of the following general formulae (1) to (4):
wherein A1 is a polymerizable functional group having a carbon-carbon double bond, A2 is an oxygen atom, methylene or ethylene group, R1 is each independently a straight, branched to or cyclic monovalent hydrocarbon group of 1 to 10 carbon atoms, R2 is each independently a hydrogen atom or a straight, branched or cyclic monovalent hydrocarbon group of 1 to 10 carbon atoms, or a combination of R1, a combination of R2, or a combination of R1 and R2 may bond together to form an aliphatic hydrocarbon ring with some carbon atoms in the oxygen heterocycle to which they are attached, and in that event, each of R1 and R2 is a straight, branched or cyclic alkylene group of 1 to 10 carbon atoms, R3 is each independently a straight, branched or cyclic monovalent hydrocarbon group of 1 to 10 carbon atoms, or a combination of R3 may bond together to form an aliphatic hydrocarbon ring with some carbon atoms in the ring to which they are attached, and in that event, each of R3 is a straight, branched or cyclic alkylene group of 1 to 10 carbon atoms, and n is an integer of 0 to 6, and
having a weight average molecular weight of 2,000 to 100,000.
2. The polymer of claim 1, further comprising recurring units of at least one type selected from the following general formula (R1):
wherein R001 is hydrogen, fluorine, methyl, trifluoromethyl or CH2CO2R003,
R002 is hydrogen, methyl or CO2R003,
R003 is a straight, branched or cyclic C1-C15 alkyl group,
R004 is hydrogen or a monovalent hydrocarbon group of 1 to 15 carbon atoms having at least one group selected from among fluorinated substituent groups, carboxyl, hydroxyl and cyano groups,
at least one of R005 to R008 is a carboxyl group or a monovalent hydrocarbon group of 1 to 15 carbon atoms having at least one group selected from among fluorinated substituent groups, carboxyl, hydroxyl and cyano groups while the remaining of R005 to R008 are each independently hydrogen or straight, branched or cyclic C1-C15 alkyl groups, or two of R005 to R008 may bond together to form an aliphatic hydrocarbon ring with the carbon atom(s) to which they are attached, and in that event, at least one of R005 to R008 is a divalent hydrocarbon group of 1 to 15 carbon atoms having at least one group selected from fluorinated substituent groups, carboxyl, hydroxyl and cyano groups while the remaining of R005 to R008 are each independently single bonds, hydrogen atoms or straight, branched or cyclic C1-C15 alkyl groups;
R009 is a monovalent hydrocarbon group of 3 to 15 carbon atoms containing a \u2014CO2\u2014 partial structure,
at least one of R010 to R013 is a monovalent hydrocarbon group of 2 to 15 carbon atoms containing a \u2014CO2\u2014 partial structure while the remaining of R010 to R013 are each independently hydrogen atoms or straight, branched or cyclic C1-C15 alkyl groups, or two of R010 to R013 may bond together to form an aliphatic hydrocarbon ring with the carbon atom(s) to which they are attached, and in that event, at least one of R010 to R013 is a divalent hydrocarbon group of 1 to 15 carbon atoms having a \u2014CO2\u2014 partial structure while the remaining of R010 to R013 are each independently single bonds, hydrogen atoms or straight, branched or cyclic C1-C15 alkyl groups;
R014 is a polycyclic hydrocarbon group having 7 to 15 carbon atoms or an alkyl group containing such a polycyclic hydrocarbon group,
R015 is an acid labile group, X is CH2 or an oxygen atom, and k is 0 or 1.
3. The polymer of claim 1, comprising recurring units derived from the polymerizable ester compound of any one of formulae (1) to (4) in a molar fraction of at least 5%.
4. A resist composition comprising the polymer of claim 1.
5. A resist composition comprising (A) the polymer of claim 1, (B) an acid generator, and (C) an organic solvent.
6. A resist composition comprising (A) the polymer of claim 1, (B) an acid generator, (C) an organic solvent, and (D) a sensitivity regulator.
7. A process for forming a pattern, comprising the steps of applying the resist composition of claim 4 onto a substrate to form a resist coating; heat treating the coating and exposing to high-energy radiation or electron beam through a photomask; and optionally heat treating the exposed coating and developing with a developer.