CN2831113Y - Multifunction radio detetor - Google Patents

Multifunction radio detetor Download PDF

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Publication number
CN2831113Y
CN2831113Y CN 200520019735 CN200520019735U CN2831113Y CN 2831113 Y CN2831113 Y CN 2831113Y CN 200520019735 CN200520019735 CN 200520019735 CN 200520019735 U CN200520019735 U CN 200520019735U CN 2831113 Y CN2831113 Y CN 2831113Y
Authority
CN
China
Prior art keywords
sensor
detection module
pen type
unit
radio detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200520019735
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Chinese (zh)
Inventor
李宗昇
王燕群
欧政隆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YOULI MICRO-SYSTEM MANUFACTURING Co Ltd
Original Assignee
YOULI MICRO-SYSTEM MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YOULI MICRO-SYSTEM MANUFACTURING Co Ltd filed Critical YOULI MICRO-SYSTEM MANUFACTURING Co Ltd
Priority to CN 200520019735 priority Critical patent/CN2831113Y/en
Application granted granted Critical
Publication of CN2831113Y publication Critical patent/CN2831113Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a multifunctional wireless detector which is provided with a pen-shaped detector and a wireless detecting module. Thus, the utility model is convenient to carry and is easy to monitor. The wireless detecting module is provided with at least one environment sensor, and the pen-shaped detector makes use of the technology of wireless transmission to control and monitor the wireless detecting module and to display measuring value measured by the wireless detecting module. The environment sensor preferably comprises a temperature sensor and a gas sensor which are separately positioned at both sides of a base plate. The gas sensor is preferable one of an alcohol concentration sensor, a carbon monoxide sensor, a carbon dioxide sensor and a firedamp sensor or is the combination of the alcohol concentration sensor, the carbon monoxide sensor, the carbon dioxide sensor and the firedamp sensor. The environment sensor preferably comprises a humidity sensor.

Description

The multifunction wireless pick-up unit
Technical field
The utility model relates to a kind of multifunction wireless pick-up unit, and particularly relevant for a kind of multifunction wireless pick-up unit with pen type monitor.
Background technology
Along with science and technology progress day by day, living environment is day by day convenience also.But being accompanied by what provide amenities for the people but is the crisis of living environment.Such as, though the use of gas brings the convenience of human culinary art easily with heating, since gas is found, the case of carbon monoxide or gas poisoning, shocking also, can be found everywhere.
And along with the lifting day by day of production precision, generally speaking, existing hazardous gas of yard and risk factor, also increase day by day, for example be the content of toxic gas and carbon monoxide or carbon dioxide, all need quilt effectively monitoring and the staff who in time notifies, to avoid producing nonvolatil injury because of sucking too much toxic gas in the workplace.
Therefore, in daily life or work, the effective environmental monitoring has its needs, and in some specific workplace and life staying idle at home, environmental monitoring is to exist even.For example, the comfortableness the when monitoring of temperature and humidity can improve daily life with work, the monitoring of carbon monoxide and methane gas concentration then is the security that concerns in living environment and workplace.
Yet, the pick-up unit that volume is too huge, and be not suitable for the use of individual or family, more be not suitable for carrying.The sensor that how a kind of ease of Use is provided and can be convenient for carrying uses so that individual or family to be provided, and can improve life and the comfortableness and the security of working.
Summary of the invention
In the explanation of above-mentioned prior art, because traditional measurement mechanism and can't provide the individual or the household convenient and the measurement function of environmental parameter fast.Therefore, how to provide a kind of measurement mechanism that is easy to carry and can reads measurement data easily, will help to improve the security of life, more can increase the comfortableness of life.
Therefore one of the purpose of this utility model provides a kind of multifunction wireless pick-up unit, has the monitor of pen type, carries to make things convenient for the user, monitors at any time.
Another purpose of the present utility model, provide a kind of multifunction wireless pick-up unit, can receive the measurement data that comes from the radio detection module simultaneously, to make things convenient for the user need not be near the monitoring area, can obtain measurement data in advance, not only be user-friendly for the measurement and the monitoring of various parameters, the security in the time of more can improving user's operation.
According to above-mentioned purpose, the utility model proposes a kind of multifunction wireless pick-up unit, monitor and at least one radio detection module that it has the appearance and modeling of a form of a stroke or a combination of strokes not only are convenient for carrying, and are easy to monitoring.Wherein, the radio detection module is equipped with at least one environmental sensor in wherein, and to be used for the measurement environment parameter, pen type monitor then utilizes Wireless transmission mode, control and monitoring wireless detection module, and show measured and measured value that get by the radio detection module.
The radio detection module also includes a substrate, a battery and a control circuit.Environmental sensor is fixed on the substrate, and battery then provides environmental sensor to measure required power supply, and control circuit, then control environment sensor and transmission measurement value are to pen type monitor.Wherein, preferably utilize the radio-frequency antenna be printed on the substrate, so that above-mentioned measured value is sent to pen type monitor, and reception comes from the control signal of pen type monitor.
The radio detection module also includes a shell and a loam cake.Have opening on the shell and aim at environmental sensor, measure to make things convenient for environmental sensor, and loam cake and shell driving fit, with the intraware of protection radio detection module.Wherein more utilize card accurate on the substrate,, make being fixed among the shell that substrate can be stabilized to fasten with shell.And loam cake more utilize have and coin around the close opening groove of camber line, lock or open to make things convenient for spiral.
Above-mentioned environmental sensor includes temperature sensor and gas sensor, lay respectively at the both side surface of substrate, and gas sensor preferable be one of them or its combination of alcohol concentration sensor, carbon monoxide transducer, carbon dioxide sensor and firedamp sensor.Environmental sensor is preferable also includes a humidity sensor.
Pen type monitor then includes a control circuit board, control knob, a LCD panel.Control knob is installed on the control circuit board, with the operate wireless detection module with carry out function selecting, LCD panel then is used for the environmental parameter that the display radio detection module is transmitted, but and Presentation Function option.
Pen type monitor preferably prints an antenna on control circuit board, or utilizes a pen clip antenna electrical couplings control circuit board, and exposes to pen type monitor, makes its function that not only has pen clip, has more the function of antenna.
Pen type monitor also includes a light-emitting device, a battery and an audible alarm device, can also utilize a supply socket, to use an external power supply.The radio detection module then can be utilized the socket of an external antenna socket and an external power supply, receives and the ability of launching with enhancing signal, and can prolong the work period.
Therefore, the utility model multifunction wireless pick-up unit can make things convenient for and the measurement of carrying out various environmental parameters fast.The structure monitoring device of pen type, not only be convenient for carrying and control easily, cooperate the radio detection module to make that the measurement of environmental parameter is more flexible and convenient with monitoring, and then make environmental monitoring more popular, not only improve the security of life, more can effectively improve the security of workplace.
Description of drawings
For above-mentioned and other purpose of the present utility model, feature, advantage and embodiment can be become apparent, being described in detail as follows of accompanying drawing:
Figure 1A is the schematic side view of a preferred embodiment of the radio detection module of multifunction wireless pick-up unit of the present utility model;
Figure 1B is the schematic side view of another preferred embodiment of the radio detection module of multifunction wireless pick-up unit of the present utility model;
Fig. 2 A is for looking synoptic diagram in another preferred embodiment of Figure 1B, with the configuration of explanation upper surface of base plate;
Fig. 2 B is the following synoptic diagram of looking of another preferred embodiment of Figure 1B, with the configuration of explanation base lower surface;
Fig. 3 A is a preferable fixed form of the radio detection modular device of multifunction wireless pick-up unit of the present utility model;
Fig. 3 B is another preferable fixed form of the radio detection modular device of multifunction wireless pick-up unit of the present utility model;
Fig. 3 C is the another preferable fixed form of the radio detection modular device of multifunction wireless pick-up unit of the present utility model;
Fig. 3 D is a preferable fixed form again of the radio detection modular device of multifunction wireless pick-up unit of the present utility model;
Fig. 4 A is the synoptic diagram of a preferred embodiment of the pen type monitor of multifunction wireless pick-up unit of the present utility model; And
Fig. 4 B is that another of pen type monitor of multifunction wireless pick-up unit of the present utility model is preferable
The synoptic diagram of embodiment.
Description of reference numerals:
100: radio detection module 110: substrate
111: shell 112: loam cake
113: opening groove 114: screw thread
115: hole 120: sensor
121: temperature sensor 130: battery
131: control circuit 132: light emitting diode
133: the socket 134 of power supply: external antenna socket
140:O type ring 141:O type ring
200: radio detection module 230: battery
231: control circuit 250: sensor
251: relative position 252: temperature sensor
253: heat conduction printed foil 254: card is accurate
255: radio-frequency antenna 310: the radio detection module
312: module body 314: fixed band
320: radio detection module 322: module body
324: magic sticking 330: radio detection module
332: module body 334: fixation kit
340: radio detection module 342: module body
344: viscose 410: pen type monitor
420: pen type monitor 470: control circuit board
471: printed antenna 472: the pen clip antenna
473: control circuit 474: the audible alarm device
480: control knob 481: LCD panel
482: light emitting diode 483: lighting source
490: battery 491: battery chamber's rotation set
492: socket 493: pen core
Embodiment
Multifunction wireless pick-up unit of the present utility model, not only not being easy to use the person carries, to measure required data at any time, can also various environmental sensor be installed in the radio detection module, the Portability and the practicality of multifunction wireless pick-up unit are all significantly promoted, and then improve the security and the comfortableness of living environment.Below will clearly demonstrate spirit of the present utility model with accompanying drawing and detailed description.As the people who is familiar with this technology is after understanding preferred embodiment of the present utility model, should be by the technology shown in the utility model, and change and modification, it does not break away from spirit of the present utility model and scope.
Consult Figure 1A, be the schematic side view of a preferred embodiment of the radio detection module of multifunction wireless pick-up unit of the present utility model.This radio detection module 100 has a substrate 110, sensor 120, control circuit 131 and battery 130.Wherein, substrate 110 preferably is printed on radio-frequency antenna, has then installed various sensors 120 on the surface of substrate 110, and preferable is various environmental sensors, for example is temperature, humidity, carbon monoxide, carbon dioxide or firedamp sensor.
Substrate 110 is installed in the flat casing 111, for example is a plastics box, and 120 holes 115 below shell 111 of various sensors are to carry out the measurement of various data.Between the various sensors 120, preferably be isolated from each other with O type ring 141.And wherein, temperature sensor 121 also can install another surface at substrate 110, can bring into play the effect of testing environment temperature.Carry out the replacing of battery 130 for the convenience of the users, flat casing 111 also has the loam cake 112 that can use coin to open, for example be a upper plastic cover, this loam cake 112 has an opening groove 113 and has and the close groove of camber line around the coin, opens with coin with convenient.
The preferable O type ring 140 that more includes around the substrate 110.Complying with after screw thread 114 screwed when loam cake 112, it can effectively seal control circuits in the substrate 110 131 and batteries 130.
Consult Figure 1B, be the schematic side view of another preferred embodiment of the radio detection module of multifunction wireless pick-up unit of the present utility model.As shown in FIG., this radio detection module 200 is except that the various features of the radio detection module 100 with Figure 1A, and it also includes the socket 133 and the external antenna socket 134 of light emitting diode 132, power supply.Wherein, light emitting diode 132 can increase the convenience in the use, for example be the duty of display radio detection module 200, to make things convenient for the user to understand whether present radio detection module 200 is working normally or whether battery needs the information changed.
The socket 133 of power supply then can provide radio detection module 200 1 external power supply, to increase the operating cycle of radio detection module 200, cooperate external antenna socket 134 again, more can increase the signal transmission capabilities of radio detection module 200, make multifunction wireless pick-up unit of the present utility model can effectively be transferred to farther distance.
Consult Fig. 2 A and 2B, for looking in another preferred embodiment of Figure 1B and looking synoptic diagram down, so that the configuration of upper surface of base plate and lower surface to be described.Wherein, the upper surface of substrate 110 includes the relative position 251 of various sensors 250 at substrate 110 upper surfaces, and it can be scattered in sexangle, or carries out the configuration of difformity position according to sensor 250 quantity of required installation.The central authorities of substrate 110 are the position of temperature sensor 252 preferably, can also be printed with radio-frequency antenna 255 on the substrate 110, and battery 230 and control circuit 231 are installed, and its outer rim then preferably utilizes card accurate 254 and shell 111 to intercouple.
The lower surface of the substrate 110 of radio detection module 200 then includes various environmental sensors 250, for example be to be scattered in sexangle totally six positions, the temperature sensor 252 of substrate 110 central authorities then disposes heat conduction printed foil 253 on the opposite position of substrate 110 lower surfaces, to increase the sensitivity of temperature sensor 252.The lower surface of substrate 110 also can dispose the radio-frequency antenna 255 of printing simultaneously simultaneously, to improve signal emission and the ability that receives.
Consult Fig. 3 A to 3D, be the various stationary state of the radio detection modular device of multifunction wireless pick-up unit of the present utility model.As shown in Fig. 3 A, this radio detection module 310 is to utilize fixed band 314, for example be wrist strap or arm band, module body 312 is fixed in any place that needs the measurement environment parameter, for example be personnel in dangerous perform region work, can carry radio detection module 310 easily, with the environmental parameter arround being used for monitoring, when environmental parameter produces unexpected variation, the real-time reminding staff, safety withdraw this dangerous perform region, the security in the time of therefore can effectively increasing the staff and work.
Radio detection module 320 shown in Fig. 3 B then is to utilize magic to glue 324, so that module body 322 is fixed in the desired position, for example is on the clothes, or the first-class place of furniture, and conveniently carries out the replacing of position.330 of radio detection modules shown in Fig. 3 C are to utilize fixation kit 334, for example are nail or screw, so that module body 332 stably is fixed in the desired position.340 of radio detection modules shown in Fig. 3 D are that to utilize for example be viscose 344 adhesion materials such as grade, so that module body 342 is fixed in the desired position.
Therefore, radio detection module of the present utility model can be fixed in any position that needs the measurement environment parameter easily, makes the measurement of environmental parameter more convenient and easy.
The utility model more utilizes pen type monitor to carry out the reception of measuring-signal, consults Fig. 4 A, and it is the synoptic diagram of one of the pen type monitor preferred embodiment of multifunction wireless pick-up unit of the present utility model.This pen type monitor 410 includes control circuit board 470, control knob 480, LCD panel 481 and battery 490.Wherein control circuit board 470 is arranged in a body of pen type monitor 410, disposes printed antenna 471 on it, also includes control circuit 473 and audible alarm device 474 on the control circuit board 470.LCD panel 481 can show various measurement data, controlled variable and state and various function choosing-item.The front end of pen type monitor 410 can also comprise a pen core 493, writes being used for.
On one's body 480 of control knobs of pen are used for operating various functions, and control radio detection module, and pen also can install on one's body and have indication or LED for illumination 482, can also install a lighting source 483 additional at a tail.This pen type monitor 410 preferably uses battery 490 so that the power supply in when operation to be provided, and it can utilize battery chamber's rotation set 491 to open the battery chamber to change.Yet pen type monitor 410 of the present utility model also can add the socket 492 of external power supply or charging thereon, the demand when being fit to various different operating.
Consult Fig. 4 B, it is the schematic side view of another preferred embodiment of pen type monitor.This pen type monitor 420 includes control circuit board 470, control knob 480, LCD panel 481, battery 490 and pen clip antenna 472.Wherein control circuit board 470 is arranged in a body of pen type monitor 420, also includes control circuit 473 and audible alarm device 474 on the control circuit board 470.And pen clip antenna 472 exposes to pen type monitor 420, with carry out and the radio detection module between signal transmitting and receiving.The pen of this pen type monitor 420 also can be installed on one's body has indication or LED for illumination 482, and utilizes the battery 490 be installed in a tail, required power supply so that operation to be provided.When carrying out the replacing of battery 490, it can conveniently open the battery chamber again to change fast from battery chamber's rotation set 491.
Multifunction wireless pick-up unit of the present utility model can be used for the parameter of monitoring of environmental, for example, and the measurement of various physics of temperature, humidity or gas concentration or the like or chemical property.The radio detection module comprises a substrate that is printed on radio-frequency antenna, the various sensors of lower surface device of substrate, and preferable temperature, humidity and the gas sensor of including, wherein gas sensor for example is carbon monoxide, carbon dioxide or firedamp sensor etc.This base plate seals is in a flat plastics box, and various sensors carry out environmental monitoring by the hole on the plastics box.Multifunction wireless pick-up unit of the present utility model utilizes micro radio to detect integrate module, not only is suitable for carrying, and also can wear easily on wrist strap or arm band, more can be attached to any place that needs the testing environment parameter.More increased elasticity and the convenience of using by portable pen type monitor again.Pen type monitor and radio detection module utilize Radio Transmission Technology to control transmission with data, and pen type monitor can also include alarm device, display device and control device, make the user to understand measured and data that get by the pen type monitor of carrying easily, and controlled and warn with control radio detection module.In order further to increase wireless receiving and dispatching efficient, pen clip also can be made into transmit antenna, to carry out the transmission of wireless signal.
The radio detection module makes the user that bigger activity space can be arranged, and for example, if the disease patient is furnished with the radio detection module, and with the medical personnel of pen type monitor, can still effectively monitor the basic physiological parameter of sufferer under the situation of arbitrarily walking about.For example be again, when dangerous workplace, by a plurality of radio detection modules, the user can understand the measured data of each radio detection module at any time, more can make when unusual situation takes place the measured data of any one radio detection module by alarming device, notice one or more staff of wearing pen type monitor make the working environment of staff arround more grasping immediately, improve security.
Size of components in the accompanying drawing, shape or number etc., the embodiment of present embodiment for convenience of explanation just, it is not to be used for limiting the utility model, and the size of increase or minimizing component count or change assembly or shape etc. all can not break away from spirit of the present utility model and scope.Though the utility model with preferred embodiment openly as above; right its is not in order to limit the utility model; any people who is familiar with this technology; in not breaking away from spirit and scope of the present utility model; when doing various changes and modification, therefore protection domain of the present utility model should be with being as the criterion that claims were defined.

Claims (10)

1. multifunction wireless pick-up unit comprises at least:
One radio detection module has at least one environmental sensor and is installed on wherein, to be used for measuring at least one environmental parameter; And
One pen type monitor has the face shaping of a pen type, and controls this radio detection module, and is read at least one measured value of at least one environmental parameter by this radio detection module.
2. multifunction wireless pick-up unit as claimed in claim 1 is characterized in that, described radio detection module also comprises:
One substrate, described at least one environmental sensor is fixed thereon;
One battery electrically connects this substrate, measures required power supply so that this at least one environmental sensor to be provided; And
One control circuit is installed on this substrate, with this at least one environmental sensor of control, and transmits described measured value to this pen type monitor.
3. multifunction wireless pick-up unit as claimed in claim 2 is characterized in that, described radio detection module also comprises:
One radio-frequency antenna is printed on this substrate, so that this measured value is sent to described pen type monitor, and receives the control signal that comes from this pen type monitor;
One shell has at least one opening and aims at this at least one environmental sensor, measures to make things convenient for this environmental sensor; And
One loam cake is with this shell driving fit, to protect this radio detection module.
4. multifunction wireless pick-up unit as claimed in claim 1 is characterized in that, described environmental sensor comprises at least:
One temperature sensor is positioned at a surface of this substrate; And
One gas sensor is positioned at another surface of this substrate.
5. multifunction wireless pick-up unit as claimed in claim 4, it is characterized in that described gas sensor is that one or its combination are selected by the group that an alcohol concentration sensor, a carbon monoxide sensor, a carbon dioxide sensor and a firedamp sensor are constituted.
6. multifunction wireless pick-up unit as claimed in claim 1 is characterized in that described environmental sensor also comprises a humidity sensor.
7. multifunction wireless pick-up unit as claimed in claim 1 is characterized in that, described pen type monitor comprises at least:
One control circuit board;
Control knob, electrical couplings are in this control circuit board, to carry out the operation of this radio detection module; And
One LCD panel shows the environmental parameter that this radio detection module is transmitted.
8. multifunction wireless pick-up unit as claimed in claim 7 is characterized in that, described control circuit board also comprises an antenna printing thereon.
9. multifunction wireless pick-up unit as claimed in claim 7 is characterized in that, described pen type monitor also comprises a pen clip antenna, this control circuit board of electrical couplings, and expose to this pen type monitor.
10. multifunction wireless pick-up unit as claimed in claim 7 is characterized in that, described pen type monitor also comprises:
One light-emitting device;
One battery is to provide this pen type monitor required power supply; And
One audible alarm device is to send the sound of caution.
CN 200520019735 2005-05-25 2005-05-25 Multifunction radio detetor Expired - Fee Related CN2831113Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520019735 CN2831113Y (en) 2005-05-25 2005-05-25 Multifunction radio detetor

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Application Number Priority Date Filing Date Title
CN 200520019735 CN2831113Y (en) 2005-05-25 2005-05-25 Multifunction radio detetor

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Publication Number Publication Date
CN2831113Y true CN2831113Y (en) 2006-10-25

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832990A (en) * 2010-05-12 2010-09-15 中国科学技术大学 Movable on-line type fire situation grade detecting and evaluating system and method
CN101881762A (en) * 2010-07-06 2010-11-10 西安交通大学 Large-range carbon dioxide monitoring system based on wireless sensor network
CN101739795B (en) * 2008-11-21 2012-09-26 财团法人工业技术研究院 Gas sensing module and wireless transmitting device and wireless sensing system using same
CN103112354A (en) * 2013-01-16 2013-05-22 重庆电子工程职业学院 Wireless multifunctional monitoring system and monitoring method of alcohol
EP3473065A4 (en) * 2016-06-01 2020-04-08 Kyzen Corporation System and method for electrical circuit monitoring
US11307661B2 (en) 2017-09-25 2022-04-19 Apple Inc. Electronic device with actuators for producing haptic and audio output along a device housing
US11334032B2 (en) 2018-08-30 2022-05-17 Apple Inc. Electronic watch with barometric vent
US11561144B1 (en) 2018-09-27 2023-01-24 Apple Inc. Wearable electronic device with fluid-based pressure sensing
US11743623B2 (en) 2018-06-11 2023-08-29 Apple Inc. Wearable interactive audio device
US11857063B2 (en) 2019-04-17 2024-01-02 Apple Inc. Audio output system for a wirelessly locatable tag

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101739795B (en) * 2008-11-21 2012-09-26 财团法人工业技术研究院 Gas sensing module and wireless transmitting device and wireless sensing system using same
CN101832990A (en) * 2010-05-12 2010-09-15 中国科学技术大学 Movable on-line type fire situation grade detecting and evaluating system and method
CN101881762A (en) * 2010-07-06 2010-11-10 西安交通大学 Large-range carbon dioxide monitoring system based on wireless sensor network
CN103112354A (en) * 2013-01-16 2013-05-22 重庆电子工程职业学院 Wireless multifunctional monitoring system and monitoring method of alcohol
US11073548B2 (en) 2015-04-17 2021-07-27 Magnalytix, Llc System and method for electrical circuit monitoring
US10677837B2 (en) 2016-06-01 2020-06-09 Kyzen Corporation System and method for electrical circuit monitoring
EP3473065A4 (en) * 2016-06-01 2020-04-08 Kyzen Corporation System and method for electrical circuit monitoring
US11307661B2 (en) 2017-09-25 2022-04-19 Apple Inc. Electronic device with actuators for producing haptic and audio output along a device housing
US11907426B2 (en) 2017-09-25 2024-02-20 Apple Inc. Electronic device with actuators for producing haptic and audio output along a device housing
US11743623B2 (en) 2018-06-11 2023-08-29 Apple Inc. Wearable interactive audio device
US11334032B2 (en) 2018-08-30 2022-05-17 Apple Inc. Electronic watch with barometric vent
US11740591B2 (en) 2018-08-30 2023-08-29 Apple Inc. Electronic watch with barometric vent
US11561144B1 (en) 2018-09-27 2023-01-24 Apple Inc. Wearable electronic device with fluid-based pressure sensing
US11857063B2 (en) 2019-04-17 2024-01-02 Apple Inc. Audio output system for a wirelessly locatable tag

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