Moisture drying mattress with separate zone controls
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A47C-021/04
A47C-027/10
A61G-007/057
출원번호
US-0147411
(2002-05-16)
발명자
/ 주소
Harker, Ruth K.
출원인 / 주소
Crown Therapeutics, Inc.
대리인 / 주소
Polster, Lieder, Woodruff & Lucchesi, L.C.
인용정보
피인용 횟수 :
101인용 특허 :
105
초록▼
A moisture drying mattress comprised of at least one cushion that has opposite top and bottom surfaces and a plurality of apertures that extend through the cushion from the bottom surface to the top surface. An air channel mat is positioned below the cushion. The air channel mat is adapted and dimen
A moisture drying mattress comprised of at least one cushion that has opposite top and bottom surfaces and a plurality of apertures that extend through the cushion from the bottom surface to the top surface. An air channel mat is positioned below the cushion. The air channel mat is adapted and dimensioned to fit beneath the cushion and support the cushion bottom surface in a spaced relation above a bottom base of the mat to thereby form an air flow space between the cushion and mat through which air can flow. A vapor permeable, liquid impermeable cover encases the air channel mat and the cushion defining a vapor evaporation area under the cover. The air channel mat defines a moisture drying zone within the vapor evaporation area. An air pump is provided for selectively supplying a flow of air to the air channel mat. A controller is provided to control the flow of air to the air channel mat to evaporate the vapor in the vapor evaporation area. In an alternative embodiment, the air channel mat is positioned above the cushion.
대표청구항▼
A moisture drying mattress comprised of at least one cushion that has opposite top and bottom surfaces and a plurality of apertures that extend through the cushion from the bottom surface to the top surface. An air channel mat is positioned below the cushion. The air channel mat is adapted and dimen
A moisture drying mattress comprised of at least one cushion that has opposite top and bottom surfaces and a plurality of apertures that extend through the cushion from the bottom surface to the top surface. An air channel mat is positioned below the cushion. The air channel mat is adapted and dimensioned to fit beneath the cushion and support the cushion bottom surface in a spaced relation above a bottom base of the mat to thereby form an air flow space between the cushion and mat through which air can flow. A vapor permeable, liquid impermeable cover encases the air channel mat and the cushion defining a vapor evaporation area under the cover. The air channel mat defines a moisture drying zone within the vapor evaporation area. An air pump is provided for selectively supplying a flow of air to the air channel mat. A controller is provided to control the flow of air to the air channel mat to evaporate the vapor in the vapor evaporation area. In an alternative embodiment, the air channel mat is positioned above the cushion. uthorized telephone numbers. 12. A system, comprising: a powered down computer, wherein the computer comprises a BIOS; and a modem coupled to the powered down computer for receiving a telephone call, wherein the modem comprises: a caller ID controller for determining an originator's telephone number for the telephone call, and a PCI register space, wherein the originator's telephone number is stored in the PCI register space, wherein the modem generates a wake signal to the BIOS when the model receives the telephone call, wherein the BIOS determines if the originator's telephone number matches one of a plurality of authorized telephone numbers, wherein the BIOS powers up the computer if the originator's telephone number matches one of the plurality of authorized telephone numbers. rd set of said sequence of bits begins. 5. The apparatus of claim 4, wherein once the second logic has determined where the first bit cell of the third set of said sequence of bits begins, the second logic decodes the third set of said sequence of bits. 6. The apparatus of claim 5, wherein the RLW corresponds to a particular group of the transmitted signals, wherein the particular group of the transmitted signals are transmitted a plurality of times, thereby causing the RLW to be repeated a plurality of times, the second logic evaluating each repeat of the RLW and producing a confidence factor for each bit of each RLW, each confidence factor being based on how closely a respective bit resembles a binary 1 or a binary 0 and on a signal strength associated with the respective bit, and wherein once the confidence factors have been produced for each bit of each repeat of the RLW, the second logic uses the confidence factors associated with each bit of each repeat to determine whether each bit is a binary 1 or a binary 0. 7. The apparatus of claim 6, wherein once the confidence factors have been produced for each bit for each repeat of the RLW, the confidence factors associated with any given bit are summed and the sums are compared to a predetermined threshold value to determine whether the bit corresponds to a binary 1 or a binary 0. 8. The apparatus of claim 7, wherein once each bit has been determined to be either a binary 1 or a binary 0, the second logic compares the binary bit values of the first and second sets of said sequence of bits to a pre-selected, stored set of bit values to determine the number of bit errors existing in the first and second sets of said sequence of bits, wherein once the second logic has determined the number of bit errors existing in the first and second sets of said sequence of bits, the second logic compares the number of bit errors to a bit-error threshold value to determine whether or not to abort message processing. 9. The apparatus of claim 1, wherein the first logic comprises a frequency converter and a digital down-converter and wherein the second logic comprises a digital signal processor (DSP). 10. The apparatus of claim 1, wherein the apparatus is comprised in a base station of the wireless network and wherein the transmitted signals correspond to messages being sent from a mobile unit to the base station of the wireless network. 11. An apparatus for receiving signals transmitted over a wireless network in an analog mode, the apparatus comprising: first logic, the first logic receiving the transmitted signals, the first logic being configured to convert the transmitted signals into digital signals; and second logic in communication with the first logic, the second logic being configured to convert the digital signals into a sequence of bits, wherein the sequence of bits corresponds to a particular group of the transmitted signals, and wherein the group of transmitted signals are transmitted a plurality of times, thereby causing the sequence of bits to be repeated a plurality of times, said sequence of bits comprising a first field corresponding to a first set of said sequence of bits, a second bit field corresponding to a second set of said sequence of bits and a third bit field corresponding to a third set of said sequence of bits, wherein the second logic analyzes the first set of said sequence of bits to determine whether or not the first set of said sequence of bits represents a continuous waveform of a particular frequency, wherein if the second logic determines that the first set of said sequence of bits represents the continuous waveform of the particular frequency, the second logic determines that a data message is being received, wherein the data message is represented by the third set of said sequence of bits. 12. The apparatus of claim 11, wherein the transmitted signals are represented by analog in-phase (I) and quadrature phase (Q) cosine waves that have been summed fo r transmission, and wherein the first logic is configured to process the summed analog I and Q cosine waves to produce digital I and Q values and to convert the digital I and Q values into said sequence of bits, the second logic being configured to demodulate and decode the digital I and Q values to convert the digital I and Q values into said sequence of bits. 13. The apparatus of claim 12, wherein once the second logic determines that a data message is being received, the second logic determines whether a signaling tone bit sequence representing a continuous waveform of a particular frequency has been received, the second logic determining whether the signaling tone bit sequence representing the continuous waveform of the particular frequency has been received by measuring an energy level associated with a waveform produced a sequence of bits being received, wherein if the second logic determines that the energy level exceeds a particular energy level threshold value, the second logic determines an amount of time that the threshold energy level has been continuously exceeded, wherein if the second logic determines that the threshold energy level has been exceeded for a particular amount of time, the second logic stores an indication that signaling tone has been detected. 14. The apparatus of claim 12, wherein the second logic evaluates each repeat of the RLW and produces a confidence factor for each bit of each RLW, each confidence factor being based on how closely a respective bit resembles a binary 1 or a binary 0 and on a signal strength associated with the respective bit, and wherein once the confidence factors have been produced for each bit of each repeat of the RLW, the second logic uses the confidence factors associated with each bit of each repeat to determine whether each bit is a binary 1 or a binary 0, wherein once each bit has been determined to be either a binary 1 or a binary 0, the second logic compares the binary bit values of the first and second sets of said sequence of bits to a pre-selected, stored set of bit values to determine the number of bit errors existing in the first and second sets of said sequence of bits, wherein once the second logic has determined the number of bit errors existing in the first and second sets of said sequence of bits, the second logic compares the number of bit errors to a bit-error threshold value to determine whether or not a data message has been received. 15. A method for receiving signals transmitted over a wireless network in an analog mode, the method comprising the steps of: receiving the transmitted signals and converting the transmitted signals into digital signals; converting the digital signals into a sequence of bits, wherein the sequence of bits corresponds to a particular group of the transmitted signals, and wherein the group of transmitted signals are transmitted a plurality of times, thereby causing the sequence of bits to be repeated a plurality of times; analyzing the sequence of bits to determine whether or not a first set of the sequence of bits represents a continuous waveform of a particular frequency, said sequence of bits corresponding to a binary radio link word (RLW), the RLW comprising a first field corresponding to said first set of said sequence of bits, a second field corresponding to a second set of said sequence of bits and a third field corresponding to a third set of said sequence of bits, the third set of said sequence of bits corresponding to a data message, wherein the second logic analyzes the first sequence of bits to determine whether or not the first sequence of bits represents a continuous waveform of a particular frequency, wherein if the second logic determines that the first sequence of bits represents the continuous waveform of the particular frequency, the second logic determines that a data message is being received, wherein the data message is represented by the third set of said sequence of bits, and wherein the second logic determines whether the first set of said sequence of bits represents the continuous waveform of the particular frequency by measuring an energy level associated with a waveform produced by the first set of said sequence of bits and by measuring a level of noise associated with the continuous waveform; and if a determination that the first set of the sequence of bits represents the continuous waveform of the particular frequency, making a determination that a data message is being received. 16. A method for receiving signals transmitted over a wireless network in an analog mode, the apparatus comprising: receiving the transmitted signals and converting the transmitted signals into digital signals; converting the digital signals into a sequence of bits, wherein the sequence of bits corresponds to a particular group of the transmitted signals, and wherein the group of transmitted signals are transmitted a plurality of times, thereby causing the sequence of bits to be repeated a plurality of times, said sequence of bits comprising a first field corresponding to a first set of said sequence of bits, a second bit field corresponding to a second set of said sequence of bits and a third bit field corresponding to a third set of said sequence of bits; analyzing the first set of said sequence of bits to determine whether or not the first set of said sequence of bits represents a continuous waveform of a particular frequency; if a determination is made that the first set of said sequence of bits represents the continuous waveform of the particular frequency, making a determination that a data message is being received, wherein the data message is represented by the third set of said sequence of bits.
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