# US 10,500,085 B2 · Bed set for inhibition obstructive sleep apnea > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,085 B2 - Document ID: US10500085B2 - Status: Granted - Kind: B2 - Application number: 15/293,632 - Filed: 2016-10-14 - Published: 2017-11-09 - Granted: 2019-12-10 - Earliest claimed: 2016-05-05 - Assignees: National Central University - Applicants: National Central University - Inventors: Men-Tzung Lo; Leh-Kiong Huon; Van-Truong Pham; Yunn-Jy Chen; Ting-Fang Shih; Thi-Thao Tran; Chen Lin; Pa-Chun Wang - Web page: https://patentgrep.com/patent/US10500085B2 ## CPC - A61F 5/56: Devices for preventing snoring - A61B 5/002: {Monitoring the patient using a local or closed circuit, e.g. in a room or building (A61B5/0017 takes precedence)} - A61B 5/087: Measuring breath flow - A61B 5/4818: {Sleep apnoea} - A61B 5/4836: {Diagnosis combined with treatment in closed-loop systems or methods (A61B5/0036 takes precedence)} - A61B 5/6891: {Furniture} - A61B 5/7246: {using correlation, e.g. template matching or determination of similarity} - A61B 5/7405: {using sound} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The present invention provides a bed set for inhibition of obstructive sleep apnea, which includes: a sound receiving module, is used to receive a respiratory sound signal obtained from a user during a time period; a sound analyzing processor, which is connected with the sound receiving module, is used to obtain a snoring sound characteristic from the spectrum of respiratory sound signal; a database, which has a plurality of snoring image characteristics corresponding to a plurality of basic snoring sound characteristics for different respiratory actions; a control processor, which is connected with the sound analyzing processor and the database, is used to compare the snoring sound characteristic with the basic snoring sound characteristics to select one of the snoring image characteristics in the same waveform, and provides the first angle control order and the second angle control order corresponding to the selecting snoring image characteristic; a first pillow, which is connected to the control processor, declines a first angle toward a declination direction after receiving the first control order; and a second pillow, which is connected to the control processor, declines a second angle toward the declination direction after receiving the second control order. ## Claims ### Claim 1 A bed set for inhibition of obstructive sleep apnea, which includes: a sound receiver, configured to receive a respiratory sound signal obtained from a user during a time period; a sound analyzing processor, which is connected with the sound receiver, which is used to obtain a snoring sound characteristic from the respiratory sound signal; a database, which has a plurality of snoring image characteristics corresponding to a plurality of basic snoring sound characteristics for different respiratory actions, wherein each of the snoring image characteristics binds with a first angle control order and a second angle control order; a control processor, which is connected with the sound analyzing processor and the database, which is used to compare the snoring sound characteristic with the basic snoring sound characteristics to select one of the snoring image characteristic in a same waveform, and provides the first angle control order and the second angle control order corresponding to the selected snoring image characteristic; a first pillow, which is connected to the control processor, is a first declining module wrapped by a soft material, wherein the first pillow is placed under the head of the user while using and declines a first angle toward a declination direction after receiving the first control order; and a second pillow, which is connected to the control processor, is a second declining module wrapped by the soft material, wherein the second pillow is placed under the body and neck of the user while using and declines a second angle toward the declination direction after receiving the second control order. ### Claim 2 (depends on 1) The bed set of claim 1, wherein the time period is a soft tissue vibration duration obtained from the user's respiratory tract during a respiratory action. ### Claim 3 (depends on 2) The bed set of claim 2, which further comprises: an image receiver, configured to receive a plurality of respiratory image signals obtained from the user during the time period; and an image analyzing processor, which is connected to the image receiver, which is used to obtain a snoring image characteristic calculated from the respiratory image signals based on a same region of the respiratory tract and an interesting area; the control processor, which is further connected to an image processing processor, which is used to compare the snoring sound characteristic with the basic snoring sound characteristics and compare the snoring image characteristic with basic snoring image characteristics to select one of the snoring image characteristic in a same waveform, and provides the first angle control order and the second angle control order corresponding to the selected snoring image characteristic; wherein the snoring image characteristic is classified according to the basic snoring sound characteristics and a plurality of basic snoring image characteristics for different respiratory actions. ### Claim 4 (depends on 3) The bed set of claim 3, wherein the image receiver further uses an adaptive partial averaging filter to enhance a noise ratio of the plurality of the respiratory image signals obtained from the user during the time period. ### Claim 5 (depends on 4) The bed set of claim 4, wherein the plurality of the respiratory image signals are a side view. ### Claim 6 (depends on 3) The bed set of claim 3, wherein the snoring image characteristics is the region ratio of respiratory tract and the interested area during a respiratory action. ### Claim 7 (depends on 6) The bed set of claim 6, wherein the respiratory area is obtained from the interested area divided by an Active Contour Model (ACM). ### Claim 8 (depends on 3) The bed set of claim 3, wherein the control processor further obtains a time reference according to a receiving sequence of the plurality of the respiratory image signals, and corrects a time error between snoring sound characteristic and snoring image characteristic based on the time reference. ### Claim 9 (depends on 1) The bed set of claim 1, wherein the sound receiver further filters a noise of the respiratory sound signal by Principal Component Analysis (PCA). ### Claim 10 (depends on 1) The bed set of claim 1, wherein the respiratory sound signal is a spectrum harmonic wave obtained by short-time Fourier transforming with a Gauss window function from the respiratory sound signal during a respiratory action. ### Claim 11 (depends on 1) The bed set of claim 1, wherein the first pillow and the second pillow incline the first angle and the second angle in the same direction, and a rotating axis of the first pillow and the second pillow is parallel to the body of the user. ### Claim 12 (depends on 1) The bed set of claim 1, wherein the first angle and second angle are respectively one of 15 degrees, 30 degrees and 60 degrees. ### Claim 13 (depends on 1) The bed set of claim 1, wherein the first pillow and the second pillow are a part of a L-shaped pillow.