CN109842719A - Calling station for internal communication network - Google Patents
Calling station for internal communication network Download PDFInfo
- Publication number
- CN109842719A CN109842719A CN201811234826.9A CN201811234826A CN109842719A CN 109842719 A CN109842719 A CN 109842719A CN 201811234826 A CN201811234826 A CN 201811234826A CN 109842719 A CN109842719 A CN 109842719A
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- Prior art keywords
- calling station
- shell
- sound
- loudspeaker
- face
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- 238000004891 communication Methods 0.000 title claims abstract description 32
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 21
- 238000013461 design Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 11
- 230000008901 benefit Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0291—Door telephones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/01—Transducers used as a loudspeaker to generate sound aswell as a microphone to detect sound
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The present invention relates to a kind of calling stations for internal communication network, shell with especially cuboid shape, shell includes shell front and shell back side, multiple programmable operating elements and multiple displays are closely densely set over the front of the housing, operating element has multiple selection keies, the connection of directly listening to and/or talk of another calling station of selection of the calling station due to being provided to internal communication network by switching centre to the manipulation of selection key by operator, multiple interfaces are set on shell back side, at least one loudspeaker is wherein fixedly disposed on calling station, the loudspeaker is placed in the placement space between shell front and shell back side relative to shell front with being staggered backward, and there is loudspeaker sound to issue face, sound issues face from sound and propagates to the opening in shell front, Opening has open cross-section, and the open cross-section only accounts for the sub-fraction that sound issues face.
Description
Technical field
The present invention relates to the calling stations described in accordance with the claim 1 for internal communication network.
Background technique
Applicant has developed since being more than 30 years and manufactures internal communication network and its component, i.e. so-called calling station.
The calling station of the prior art is in 10 2,014 011 963 A1 of patent application DE of applicant and rear disclosed special
10 2,017 107 148 10 2,017 107 150 10 2,017 106 946 A1, DE 10 of A1, DE of A1, DE of benefit application DE
2017 116 002 A1, DE 10 2,017 116 273 are disclosed in A1.
Summary of the invention
The calling station of type according to the invention in internal communication network for using.It is transmitted by internal communication network
Audio data.Internal communication network provides the network of intercom constituted very compoundly herein, such as it in zone of action,
It is used for site activity, for example in sports and musical life.
Concept " calling station " is also used as concept " internal communication panel " in the range of present patent application, " internal communication list
The synonym of member ", " internal communication station " or " participant of internal communication network " uses.
The calling station of known type on its shell front or front side have multiple operating elements, function key, selection key,
Interface and display.Available space or available arragement construction face over the front of the housing is limited.For cloth
The space for setting operating element, function element, interface and display is for example limited for following reason, that is, calling station should have
There is the following size, the size, which can be realized, is pushed into calling station in scheduled retainer that is, assembling framework, for that will exhale
Station is made to be fixed on the purpose on frame.It is also known that the calling station on table can be put into.
Scheduled size based on the installation frame on the one hand also size at booked call station under any circumstance: it is additionally present of
Demand places as how different as possible operating element and function element and display: the arragement construction face for multiple instruments
Certainly it cannot arbitrarily be amplified.
Thus setting out, task of the invention lies in further develop the calling station of known type, so that providing use in this way
In arrange the improvement of function element, operating element and/or interface and/or display over the front of the housing a possibility that.
The present invention solves the task with the feature of claim 1.
At least one loudspeaker is fixedly disposed on calling station according to the present invention.Advantageously fixedly set on calling station
Set two or also more loudspeakers.
Loudspeaker is placed in the placement space between shell front and shell back side according to the present invention.The loudspeaker exists
This is arranged with being staggered backward relative to shell front.This indicates that loudspeaker is not directly in behind the shell plates of front side, such as existing
Have in technology, but relative to this significantly, i.e. so that a small number of millimeters, advantageously several centimeters with the formation shell front of shell
The inside of wall is arranged with being staggered backward at interval.
There is loudspeaker sound to issue face.Herein more particularly, to the conventional film of the loudspeaker substantially routinely constituted
Piece.Sound issues face and for example can circularly constitute.But it also can have another profile.
Face, which is issued, from sound by the sound of loudspeaker transmitting propagates to the opening in shell front.It is arranged according to the present invention
For the opening in shell front has following open cross-section, and the open cross-section issues face significantly less than sound.It is described
Opening has following open cross-section, only accounts for the sub-fraction that sound issues face.Open cross-section is herein at least below sound
The half in sending face.
What is understood in the meaning of present patent application as sub-fraction is following share, is not more than under any circumstance
50%.
By the interval of loudspeaker and shell front, the channel for being used for sound transmission can be formed in shell, it is described
Channel for example also can be realized arrangement sound funnel.Space or channel are sent along the sound, the sound emitted by loudspeaker
By densification (verdichtet), and focus in the small opening in shell front.By the small opening, sound can be with
Discharge.It is spaced apart by loudspeaker with shell front, is arranged with being staggered backward, there is additional arrangement or fixed over the front of the housing
Plane is vacated, and along the arrangement or positioning surface, other operating elements or display or interface can be set or in any feelings
The region or section of the region of operating element or section or display under condition.
In the prior art, the significant face share of shell front is retained for loudspeaker.This is direct along with loudspeaker
Setting and/or assembly are over the front of the housing.It in contrast can be by the change according to the invention of the position of loudspeaker in shell
The more arragement construction spaces for being used for the element and display are obtained on body front.This does not cause according to the present invention to sound certainly
The influence of frequency quality.It can be used as special measure herein, for example by the arragement construction of separated sound funnel, it is real
Existing sound wave issues particularly advantageous and optimization transmission and densification of the face to small opening from sound.
The especially present invention includes, and is that issue face also only unique configured with over the front of the housing for each sound of loudspeaker
Opening.But in a kind of modification of the invention, the opening is also segmented into multiple portions opening.The outs open can also
To be separated from each other it is arranged over the front of the housing.The last present invention also includes being there are two a speaker configurations or more
Sound funnel, the sound guide the individual outs open to shell front with funnel.Certainly also in the present invention
The alternative in be set as, the arrangement that is provided for outs open over the front of the housing by multiple portions opening or
Positioning surface generally issues face significantly less than the sound of loudspeaker.Otherwise the determining over the front of the housing that the present invention wants is not realized
The advantages of windfall of plane.
Calling station according to the invention especially has the shell of cuboid shape.Herein relate to the height for having small
The block-like element of degree, in contrast biggish depth and big width.The element is configured to retainer shape, is suitable for
The push-in of retainer shape.
Calling station according to the invention has shell front and shell back side.Closely densely it is arranged over the front of the housing
A large amount of operating element, interface and multiple displays.Operating element is especially programmable.At least some operating elements are programmable.
It is programmable to indicate, it is operating element by selecting, different functions can be assigned i.e. by programming.For this purpose, programmable
Property can realize that calling station is connect with the switching centre with calling station sheet or by switching centre.It is logical
A possibility that normal programmability includes that can be configured with different functions for operating element.Selection key determining in this way can be
It --- according to programming --- establishes audio with another first calling station or another second calling station after manipulation and connect.
Calling station according to the invention has multiple displays.The display has display device, the display device
Display configuration or the information and or parameter and/or function that may be configured to operating element.Especially display may include region or
Section, the region be also in corresponding operation element with section space and additionally with content in related relationship.
The user of calling station can for example identify which which operating element has the function of here by having a look to display.
Such as calling station according to the invention can have multiple selection keies, the selection key due to manipulation ensure with it is another
The connection of listening to and/or talk of a calling station.On the display can be with --- in the direct sky to each operating element
Between configuration in --- shown, before or after manipulation determining operating element, the calling station and which exhaling in addition
Make station that can construct audio connection.User's name of movable people may be displayed on display for example on other calling stations thus
On device.Alternatively title, mark, number or the like can also be allocated to the calling station.
Selection key can for example have there are three position, i.e. middle position or resting position, and selection key is to the middle position
Or it is pre-tensioner in resting position.Each selection key also can have two terminal locations or two operating positions, for example above
With following operating position or switching position.It can be set to thus, selection key must keep being pressed, determining to apply
Function.Selection key can for example be offset downward from middle position upwards or alternatively in this way, wherein in the upward direction
When manipulating selection key, realization speech connects and when identical selection key to be manipulated to downwards in another operating position,
It is realized in another identical calling station and listens to connection.
Calling station according to the invention to internal communication network selection another calling station company of listening to and/or talk
Switching centre's offer was provided.Internal communication network is managed there.
Calling station according to the invention has multiple interfaces on its shell back side.Such as voltage feed interface, data line
Interface, bnc interface and analog belong to this.It is also looked for herein in particular for connecting the interface of the calling station and switching centre
It arrives.
Furthermore in order to illustrate calling station and in order to explain its feature, refering to the patent application listed above of applicant,
With regard to this also for reference to each feature there and being received the purpose in the claim of present patent application and be
It avoids repeating Reference its content.
Calling station according to the invention can be realized the receipts for being provided to another calling station of selection of internal communication network
It listens and/or connection of talking.But the present invention also includes following calling station, be additional to transmission audio data can also also transmit and/
Or receive video and/or data-signal.Such as the present invention also includes calling station, can be additionally mounted on vision signal
It shows or reproduces on display or display device on calling station.
Data, signal or the information transmitted together during providing and listening to and/or talk connection can be for example used for
Transmission state information.Such as the calling station of the determination of internal communication network can be transmitted information to, such as " key 3 is now green
Ground shines ".
A kind of advantageous design according to the invention, the opening are made of narrow elongate gap.
Thus possibility is provided, the opening is constituted especially smallly and at the same time ensuring to be used for the sound generated by loudspeaker
Sound penetrates sufficiently large open cross-section.
It finally thus can on the one hand minimize the space requirement of the needs for opening over the front of the housing.Another party
The opening that face is constituted in this way can also be bridged by another element, such as handle element or overlap joint, and this will not influence
The acoustic characteristic of calling station.
The advantageous design of another kind according to the invention, the gap is vertically or substantially vertical direction is prolonged
It stretches.Thus there is a possibility that, by the opening near shell lateral wall section position and will over the front of the housing
Entire arragement construction face in order to operating element and display positioning with maximum, continual width construction.
In the advantageous design of another kind of the invention, the open cross-section of opening be sound issue face fewer than half,
Advantageously further less than one third, advantageously further less than a quarter, be further especially less than 1/5th, into
One step is especially less than 1/6th, is further especially less than 1/7th.Whereby, the opening is equipped with significantly less than loudspeaking
The span width in the sound sending face of device or net cross section.
Face is issued significantly less than sound by open cross-section, high quality in terms of quality can be used for calling station
Loudspeaker, and at the same time being realized over the front of the housing not losing in the case where the audio quality on calling station relative to existing
The positioning for operating element, display, interface, socket or the like for thering is technology to increase or arragement construction face.
In the advantageous design of another kind of the invention, shell front has rectangle or substantial rectangular fundamental form
Shape.Calling station can determine size thus according to the calling station of the prior art according to the present invention and constitute.This can be realized benefit
With conventional component and element, for example conventional tightening member, with for calling station is fastened on bearing support or keep frame or
In assembling framework.
In the advantageous design of another kind of the invention, it is open close to the lateral border land setting of basal plane.It is consequently for
The arragement construction face or positioning surface of operating element, display, interface and socket or other function element can be over the front of the housing
It keeps and maximizes without interruption.
Another kind according to the invention is advantageous to be set as, and loudspeaker is set close to the lateral wall or wall surface of shell
It sets.Thus there is a possibility that particularly simple assembly of loudspeaker, because the loudspeaker can be for example directly in shell
It fixes or assembles on lateral housing wall or in a simple manner relative to the lateral housing wall.On the other hand thus exist
Possibility, the handle element setting that shell will can be firmly grasped using its operator are over the front of the housing and first by these handles
Part is positioned such that so that handle element overlap joint or covering opening and at the same time --- in a conventional manner --- it is laterally disposed
On shell.
In the advantageous design of another kind of the invention, setting sound leakage between face and opening is issued in the sound of loudspeaker
Bucket-shaped part.The sound can have one or more walls with funnel, and sound is reflected and transmitted on the wall.Sound funnel
Shape part has such as down cross-sectional, faces opening reduction from the sending of the sound of loudspeaker, is especially continuously reduced.
The wall of sound funnel can be herein using the wall elements of shell, the side wall of such as shell.The sound funnel
Shape part can also only by or partly formed by the element that the wall of the shell with calling station separates.Such as the wall of sound funnel
It can be formed by metal or plastics.
Sound funnel can send special for the sound for issuing face to small opening from the sound of loudspeaker
Demand is adapted to or is optimized.The especially selection of the material of the wall region of sound funnel and geometry can be about
The audio request of calling station is optimised.
It is especially arranged to according to the present invention, shell front is provided by flat or substantially flat face.Concept is " substantially flat
" it is considered herein that, based on function element, operating element, connection socket or display, the slight deviation of permission and the plane.
Such as the shell toe lateral that operating element can be constituted from furthermore level land is stretched out, and is made in face of calling station according to the invention
User.
The advantageous design of another kind according to the invention, the positioning of loudspeaker are carried out in a manner of then special: loudspeaking
Device is positioned such that, so that sound issues face and is arranged relative to shell front rake.Especially the sound of loudspeaker issues face phase
For shell front with acute angle, such as 45 ° or about 45 ° be obliquely arranged.
Thus the fastening of one side loudspeaker, arrangement and assembly it is particularly advantageous a possibility that but can advantageously make simultaneously
The particularly advantageous arrangement of sound funnel and fastening and structure possibility are possible.
A kind of advantageous design according to the invention, the sound of loudspeaker issue face and are parallel to or are arranged essentially parallel to shell
Lateral housing wall orientation.
Sound issue face in the form of implementation with about 90 ° relative to or be substantially perpendicular to shell front orientation.Again
It can carry out transmitting from loudspeaker to the sound of shell front by already mentioned sound funnel before.
The advantageous design of another kind according to the invention, selection key are constituted in a particular manner.Thus more at least within
Selection key can take up different positions, i.e. advantageously three different positions.Including first, it is especially inactive in
Between position, selection key is pre-tensioner into the neutral first position.Furthermore there are two movable operating position or ends for selection key tool
End position, i.e., first terminal position and for example following second terminal position for example above.
By the effect of finger or hand by user, user can be inclined from middle position-by selection key-
It moves on to terminal location above or alternatively into following terminal location and it is manipulated whereby.Once selection key arrives
Up to terminal location above, then the operator of the calling station realizes the direct speech with the operator of another calling station
Connection.If selection key is displaced in another terminal location, operator realizes direct with another calling station
Listen to connection.The time for connecting that only maintenance is so long is listened in corresponding speech, so that selection key is maintained at it by operator
In terminal location, it is loaded into terminal location.Once operator unclamps selection key, then it is automatic to be based on spring pre-tightening for selection key
It returns in intermediate position.
Two loudspeakers are arranged in the advantageous design of another kind according to the invention on calling station.Thus especially audio
The stereo receiver of signal is possible.
Furthermore the present invention also can be realized use of at least one loudspeaker in microphone modes.Thus the sound of calling station
Frequency monitoring is possible.
The advantageous design of another kind according to the invention, is arranged the fastening section laterally outwardly stretched out over the front of the housing.
The fastening section can advantageously further be respectively provided with the opening that engagement (Durchgriff) is passed through for retention mechanism.By
This can be realized calling station according to the invention in assembling framework, for example in retainer according to the calling station routinely constituted
On it is particularly advantageous and simply fasten.
The advantageous design of another kind according to the invention, is fixedly disposed at least one microphone on calling station.Alternatively
Or at least one interface for microphone is additionally fixedly disposed on the shell front of calling station.The interface can be such as
It is formed by conventional microphone jack.The interface can be realized the direct connection of microphone Yu shell front.
The advantageous design of another kind according to the invention, setting is used at least one of headphone over the front of the housing
Interface.A possibility that comfortable is provided by headphone with regard to this that is, listens to-say that telephone unit is connect with calling station.
The advantageous design of another kind according to the invention, opening are covered by handle element.Such handle element to grasp
It can be realized as personnel and the simple of calling station grasped or promptly and the transport of comfortable hand-held.
Purpose especially for progress calling station relative to the assembly or disassembly of assembling framework or assembly rack, described
Hand element or the multiple handle element is advantageous there are multiple handle elements.The handle element can be
This is arranged and positions in this way, so that it partially or completely overlaps opening.Thus the penetrating part being open is in shell front
Especially the setting of section space-efficient is possible, is issued with the sound of the sound for being generated by loudspeaker.
Thus over the front of the housing for place operating element and/or display positioning or arragement construction face can also into
One step maximizes and/or optimization.
The present invention solves task set forth above also with the feature of claim 17.
It is similarly suitable according to claim 17 also for the present invention refering to above-mentioned embodiment in order to avoid repeating
With.
It is set as in calling station according to claim 17, calling station according to the invention to internal communication network
The connection of directly listening to and/or talk of another calling station do not occur in the case where intermediate connection switching centre, but
Two calling stations-of internal communication network or multiple calling stations-are directly connected with each other in no intermediate connection switching centre.
Detailed description of the invention
The present invention other the advantages of by unreferenced dependent claims and by the embodiment being shown in the accompanying drawings
Subsequent explanation obtain.
There is shown with:
Fig. 1 shows a kind of front view of the signal of the shell front of embodiment of calling station according to the invention；
Fig. 1 a shows the independent view of the signal of the amplification of the selection key of the part circle 1a substantially according to Fig. 1, for solving
Release the different positioning and position of the operating element of selection key；
Fig. 2 shows the rearviews of the signal of the calling station of Fig. 1；
Fig. 3 shows the vertical view of the signal of the partial sectional of the friendship transversal III-III substantially in Fig. 1 of the calling station of Fig. 1
Figure, wherein a large amount of part is omitted for clear property；
Fig. 4 shows a kind of schematic diagram of the block diagram shape of embodiment of internal communication network, and the internal communication network makes
With three calling stations according to the invention；
Fig. 5 shows the view of the signal of the shell front of the calling station of the prior art；
Fig. 6 shows the thin of the signal of the partial sectional of the amplification of the join domain of the loudspeaker in the diagram according to Fig. 3
Save view, such as the part circle VI according to Fig. 3；
Fig. 7 shows the diagram according to Fig. 6 of the alternative arragement construction of loudspeaker, wherein the sound of loudspeaker issues face
There is the inclination changed relative to shell front；
Fig. 8 shows the partial sectional of another embodiment of calling station, signal, interruption and perspective view,
Wherein, handle element, the opening that the handle element covering is issued for sound are set over the front of the housing；
Fig. 9 shows the diagram of the diagram similar to Fig. 7 of another alternative arragement construction of loudspeaker, including loudspeaker
The sound of change orientation relative to shell front issues face, wherein the diagram compared to Fig. 6 and 7 shows the another of shell herein
One, i.e. about the side wall on the right of Fig. 3, and wherein, the sound of the loudspeaker of Fig. 9 issues the side that face is arranged essentially parallel to shell
Wall orientation；And
Figure 10 show with according to the diagram of Fig. 4 using two calling stations according to the invention according to this hair
Another embodiment of bright internal communication network, wherein two calling stations of Figure 10 are in no intermediate connection switching centre
In the case of be directly connected to each other.
Specific embodiment
Illustratively illustrate the embodiment of the present invention referring also to attached drawing in the explanation to subsequent drawings.Herein for clear
As long as property, which is also related to different embodiments, indicates same or similar component or element or region with identical appended drawing reference,
Partly add small letter.
The feature illustrated only about one embodiment can be also each other real in the present invention within the scope of this invention
It applies in example and is arranged.The embodiment changed in this way, --- even if it is not shown in the accompanying drawings --- includes together by the present invention.
All disclosed features itself are important the present invention.This also (is applied for affiliated priority document in advance
Copy) and the document and the disclosure of described device of the prior art of reference with full content include arriving the application's
It also include following purpose in open, that is, the single or multiple features of these files are received into the one or more of the application and are weighed
During benefit requires.
The calling station is indicated on the whole with 10 with it in the accompanying drawings in the described embodiment.The calling station is internal logical
Component part or the participant for interrogating network 11, as the box by Fig. 4 illustrates.Such internal communication network 11, which has, to be handed over
Switching center9 19 and multiple calling stations 10,18a, 18b, the calling station are mutually in connection by connecting wire 48a, 48b, 48c
In.Calling station 10,18a, 18b are directly connect with switching centre 19 respectively by connecting wire 48a, 48b, 48c.Switching centre 19
Manage the internal communication network 11.
Internal communication network 11 for audio transmission and for example for temporarily to be constructed network, for example live at the scene
Communication possibility is provided in dynamic, such as musical life or sports.
Calling station 10 according to the invention has shell 12, the shell substantially cuboid as shown in Figure 1
Constitute to shape.The front 13 of shell 12 is shown in FIG. 1, the shell back side 14 of shell 12 is shown in FIG. 2, and in Fig. 3
The implementation according to the invention exemplifies the cross section of shell 12, to can identify the shell front in shell 12 herein
13, shell back side 14 and placement space 25.
Multiple operating element 15a, 15b, 15c are set on shell front 13 with reference to Fig. 1, in the operating element more only
Equipped with appended drawing reference.The operating element is in this embodiment with two rows and generally at four groups of settings.
Operating element 15a, 15b, 15c are respectively structured as selection key 17a, 17b, 17c, 17, wherein and only some selection keies
Equipped with appended drawing reference.
Such selection key 17 is respectively provided with control stick 49 as shown in Figure 1a, part circle of the control stick with reference to Fig. 1 a
Display is enlargedly shown.Thus control stick 49 have it is being faced with the observer of Fig. 1, from the lever element outstanding of shell front 13
49, the lever element can be by the finger grips of user and from middle position 40s along perpendicular on its free end
Histogram can be displaced in terminal location 41a above or can be displaced in contrast to vertical direction 31 following terminal position to 31
It sets in 41b.Spring into middle position 40 of lever element 49 deviate, in terminal location 41a, 41b is pre-tensioner.Cause
This, once operator decontrols lever 49, the lever automatic opening-closing is into middle position 40.
Once operator manipulates selection key 17,17a, 17b, 17c and is displaced in terminal location 41a, 41b,
Then connection of directly listening to and/or talk is established with the calling station 18a of selection.It in this way can be real for example in terminal location 41a
Now speech, which is connected and realized in terminal location 41b, listens to connection.Also the different operational mode is known as (say/listen)
Speak/Listen mode.
It to be mentioned about Fig. 1 a, operating element 49 can take up three different position 39a, 39b and 39c.
On the shell front 13 of shell 12 in the described embodiment furthermore be arranged four display 16a, 16b, 16c,
16d.The quantity of display 16a, 16b, 16c, 16d and the quantity of selection key are arbitrary certainly.
But it is related in principle in calling station 10 according to the invention, it can be by multiple operating elements on shell front 13
15a, 15b, 15c, 15d and display 16a, 16b, 16c, 16d are closely densely arranged, on the one hand to place multiple operations
Element, display and interface also can be realized the comfortable and reliable operation and identifiability of the element but then.
In the embodiment in figure 1, multiple interfaces are set beside selection key 17,17a, 17b, 17c on shell front 33:
Fig. 1 in this way shows microphone interface 45 and headphone interface 46.Microphone interface 45 can be used as blade plug
Socket is constituted and headphone interface 46 can be used as XLR- plug (male)-jack interface and constitute.
Two USB interfaces 52a, 52b are finally also also set up on shell front 13 in the embodiment in figure 1.
Furthermore shell front 13 has fastening section 42a, the 42b laterally outwardly stretched out, be arranged in the fastening section
A certain number of openings 43.Calling station 10 can be carried out in retainer or assembling framework by lateral fastening section 42a, 42b
On fastening.Opening 43 can pass through interlocking by unshowned retention mechanism thus.
Lateral fastening section 42a, 42b and for operating element 15a, 15b, 15c, 15d and display 16a, 16b,
Two openings 28a, 28b, the pattern structure being open according to gap 30a, 30b are set between the arragement construction face 53 of 16c, 16d
At.It herein is referred to the outlet opening of the sound for being generated by loudspeaker 24a, 24b.
As best with reference to the diagram in Fig. 3 it is evident that the inner space 54 of shell 12 by shell 12 shell front
13 and shell back side 14 and lateral wall surface 35a, 35b surround.In addition, shell 12 have bottom wall 55 and in Fig. 3 it is unshowned,
The roof 56 indicated in Fig. 1.That is, inner space 54 is limited by this six wall sections.
The construction component for the electronics to be largely arranged in the inner space of shell 12 54, such as circuit board, processor, electricity
The construction component and cable and conductor of container, when necessary transformer and other electronics are not shown.But to those skilled in the art
It is clear that thering is an electric conductor to extend to each operation each interface 45 on shell front 13,46,52a, 52b
Element 15a, 15b, 15c, 15d.
Identical content is suitable for the interface to be arranged on shell back side 14.That is, there are in shell 12 be not aobvious
The cable of work, which is laid, to be spent.
Such as by the embodiment of Fig. 3 it can be seen that it will be evident that the first loudspeaker 24a is arranged in the inner space of shell 12 54
With the second loudspeaker 24b.Of the invention in other embodiments not shown in the figure, calling station 10 has only one loudspeaking
Device 24.
Loudspeaker 24a 26 is arranged at interval with misplacing with shell front 13.Dislocation 26 is shell in the described embodiment
The depth T's of 12 inner space 54 is approximately half of.Dislocation 56 shell front 13 inside 57 and loudspeaker 24 near
It is measured between the section 58 of inside 57.
Advantageously, dislocation 26 in calling station according to the invention for shell 12 inner space 54 depth T at least
10%, further especially at least 20%, further especially at least 25%, further especially at least 30%.
In the fig. 3 embodiment, loudspeaker 24,24a, 24b are conventional so-called moving-coil speakers.Due to using in this way
Speaker types, very good audio playback quality may be implemented.It can also carry out employing to conventional loudspeaker.
Such moving-coil speaker has diaphragm, and the size of the diaphragm determines the size of loudspeaker.With reference to the implementation of Fig. 3
Example, loudspeaker 24, which has, is laterally extended QS, the outer diameter for being laterally extended the diaphragm corresponding to substantially circular composition.That is, it raises
There is sound device 24a sound to issue face 27, and the sound issues face and diaphragm is just equally big.That is, sound issue face 27 have pair
Ying Yu is laterally extended the diameter of QS.
The sound generated by loudspeaker 24a --- as best by Fig. 6 it is detailed shown in embodiment illustrate
--- it is indicated as sound wave in Fig. 6 with 51.These sound waves from the sending face 27s of loudspeaker 24a guide to opening 28 or
Gap 30.This is carried out by sound with the arragement construction of funnel 36 in the embodiment according to the figure.The sound funnel
Wall section 37a, 37b that especially there is shape part part bending to constitute, thus the inner space or inside of sound funnel 36
Cross section issue face 27 from sound and 28 be continuously reduced until being open.
As a result, opening 28 can have the open cross-section 29 for issuing face 27 significantly less than sound.
In the embodiment in fig 6, opening 28 has width B (referring to Fig. 6) and height H (referring to Fig. 1), causes as height
The open cross-sectional area 29 of the product of H and width B is spent, sound of the open cross-section significantly less than loudspeaker 24a issues face
27.Sound, which issues face 27, has π × (QS:2)2Size.
Pass through observation Fig. 1 and 6 and face 27 and opening 28 are issued by control sound and has seen that First view obtains, sound hair
Appear 27 be noticeably greater than opening 28.
Whereby, the opening 28 on shell front 13 can be kept as very small.Arrangement on shell front 13 as a result,
Structural plane 53 maximizes.Also can by multiple operating element 15a, 15b, 15c, 15d, especially selection key 17,17a, 17b,
17c and display 16a, 16b, 16c, 16d and interface 52a, 52b, 45,46 are placed on shell front 13.
In the embodiment in fig 6, sound issues face 27 and is arranged relative to the angle (appended drawing reference α) at 45 ° of shell front 13.
In the example of figure 7, loudspeaker 24 differently positions in contrast: sound issues face 27 and is parallel to shell herein
Body front 13 orients.Also also it is arranged between the inside 57 of shell front 13 and sound sending face 27 certainly herein very big
Dislocation 26.Sound funnel 36 including wall section 37a, 37b is also set in the example of figure 7.
In others of the invention in embodiment not shown in the figure, sound funnel 36 can also be by shell 12
Section 35a, 57 inner surface formed or be partly formed.
In the diagram that the diagram that the embodiment of Fig. 9 is related to opposite Fig. 6 and 7 slightly changes:
The lateral wall surface 35b and shell front 13 about on the right of Fig. 3 of shell 12 shown here it is corresponding about
Section on the right of Fig. 3.
There is loudspeaker 24c the sound for being parallel to side wall 35b orientation to issue face 27c.
Sound is provided with funnel 36 here by wall section 37a, 37b, wherein the wall section of sound funnel 36
37a corresponds to the inside 59 of side wall 35b.
It can be seen that tightening member 60, the tightening member can be realized loudspeaker 24c directly on the side wall 35b of shell 12
Fastening.
With 61 indication circuit plate of appended drawing reference in Fig. 9, the construction component of multiple electronics be can be set in the circuit board
On.Such as the construction component for 62 indicating electronics, the construction component have scheduled height 63 and scheduled width 64.
Find out when observing Fig. 9, the free space retained between construction component 62 and housing sidewall 35b, which has to be less than, to be raised
The span width 65 for being laterally extended QS of sound device.
I.e. by loudspeaker 24c about the offset backward or dislocation according to the invention backward of shell front 13, generally
It says and is arranged on circuit board 61 on the position that firstly there are possibility, the construction component 62 of electronics is shown in FIG. 9.
It mentions, the sound outlet 19,20,30 in Fig. 9 for clear property on housing wall 12 is not shown, but certainly
It is existing.
According to Fig. 1, opening 28 is arranged as the gap in shell front 13 according to the pattern in gap 30.The gap is along vertical
Histogram is constituted with extending longly to 31.Thus, it is possible to realize very narrow, the small opening on shell front 13.
As illustrated in Fig. 1, shell front 13 has the basal plane 33 of rectangle.The side in basal plane of two gaps 30a, 30b
The positioning being arranged in this embodiment in the region of edge 34a, 34b is advantageous.For operating element 15a, 15b, 15c, 15d
It can be maximized without interruption in this way with the arragement construction face 53 of display 16a, 16b, 16c, 16d.
Also illustrate the back side of shell 12 by the embodiment of Fig. 2 for integrality.Provide herein multiple interface 20a,
20b, 20c, 20d, 20e, 20f, 20g, 20h, 20i, the interface are exemplarily only shown.Such as it can be seen that voltage feed interface
21, the voltage feed interface can be realized the connection of calling station 10 Yu 220V power supply line.Furthermore setting for power connection-into
One step extends the interface 50 of (Weiterschleifung).Another electrical or electronic instrument for requiring supply voltage herein
It may be coupled on the interface 50.
Furthermore data line interface 22a, 22b, 22c are set on shell back side 14.It can be related to for different herein
Plug specification, such as HDMI, GPIO, Dual-Ethernet, 4w analog interface or other interfaces different sockets.Fig. 2 also illustrates use
In the BNC connection socket 23 of connection BNC cable.
As the embodiment of Fig. 8 finally set forth in, in another embodiment be arranged handle element 47a, 47b, the handle
Element covers gap 30a, 30b.Handle element 47a, 47b be similarly disposed at the basal plane 33 of calling station 10 lateral edge 34a,
In the region of 34b.
Then the calling station 10' of the prior art should be also explained by Fig. 5 briefly:
Calling station 10' about the prior art uses identical appended drawing reference for simplicity in Fig. 5, passes through slash respectively
Number supplement.
Also there is programmable operating element 15a', 15b', institute in the prior art according to the calling station 10' of Fig. 5
It states operating element and can also be used as display 16a', 16b' and work.Herein in 28' setting for fixed installation, not
The opening of the loudspeaker shown.
Open cross-section 29' sightless, the edge observation such as in Fig. 5 herein of the opening 28' in face is issued for sound
The direction of observation of person is constituted in Fig. 5 in the subsequent loudspeaker of shell front 13' greatly like that.
In the embodiment in accordance with the invention, not any element of opening 28 in shell front 13.This certain hair
Bright also to include, opening 28 is completely or partially run through or is worn with the speaker grille made of plastics or textile material or pad
It crosses, as it is also usually used in other sound outlets for loudspeaker in the housing.
Addedly explained herein with reference to Figure 10, in another embodiment according to the invention of internal communication network 11,
Another calling station 18 of calling station 10 according to the invention and internal communication network 11 directly passes through connecting wire 66 without in
Between connect switching centre connect.
Claims (17)
1. being used for the calling station (10) of internal communication network (11), there is the shell (12) of especially cuboid shape,
The shell includes shell front (13) and shell back side (14), wherein is closely densely arranged on shell front (13)
Multiple especially programmable operating elements (15a, 15b, 15c, 15d) and multiple displays (16a, 16b, 16c, 16d),
In, the operating element has multiple selection keies (17a, 17b, 17c, 17d), wherein the calling station is based on passing through operator
Member to the manipulation of selection key by switching centre (19) be provided to internal communication network another selected calling station (18a,
Directly listening to and/or talking connection 18b), wherein be arranged on shell back side (14) multiple interfaces (20a, 20b, 20c,
20d), such as voltage feed interface, data line interface, bnc interface, wherein at least one loudspeaking is fixedly disposed on calling station
Device (24a, 24b), wherein loudspeaker phase in the placement space (25) between shell front (13) and shell back side (14)
Shell front (13) are placed with being staggered (26) backward, and there is loudspeaker (24a, 24b) sound to issue face (27), sound
Face is issued from the sound and propagates to the opening (28) in shell front (13), wherein the opening has open cross-section
(29), the open cross-section only accounts for the sub-fraction that sound issues face (27).
2. calling station described in accordance with the claim 1, which is characterized in that the opening (28,28a, 28b) by narrow gap (30,
30a, 30b) it is formed.
3. calling station according to claim 2, which is characterized in that the gap (30,30a, 30b) is along the vertical direction (31)
Extend.
4. according to calling station described in one of the claims, which is characterized in that the open cross-section (29) is sound hair
Appear (27) fewer than half, be especially less than one third, be further especially less than a quarter, be further especially few
In 1/5th, further it is especially less than 1/6th, is further especially less than 1/7th.
5. according to calling station described in one of the claims, which is characterized in that the shell front (13) has rectangle
Or the basal plane (33) of substantial rectangular.
6. calling station according to claim 5, which is characterized in that the opening (28,28a, 28b) is close to the side of basal plane
Edge (34a, 34b) setting.
7. according to calling station described in one of the claims, which is characterized in that loudspeaker (24a, 24b) is close to shell (12)
Lateral wall surface (35a, 35b) setting.
8. according to calling station described in one of the claims, which is characterized in that issued in the sound of loudspeaker (24a, 24b)
Setting sound is with funnel (36) between face (27) and the opening (28,28a, 28b).
9. calling station according to claim 8, which is characterized in that the sound has wall section with funnel (36)
(37a, 37b), the wall section is formed by the component part of shell and/or the wall section is by the element shape that separates with shell
At.
10. according to calling station described in one of the claims, which is characterized in that before sound issues face (27) relative to shell
Portion (13) obliquely, especially obliquely, is further especially set with acute angle (α) with 45 ° or about 45 ° of angle tilt
It sets or the sound of loudspeaker (24c) issues face (27) and is parallel to or substantially parallel to the lateral wall surface (35b) of shell (12) calmly
To.
11. according to calling station described in one of the claims, which is characterized in that selection key (17a, 17b, 17c, 17d) can
Three different positions (39a, 39b, 39c) are occupied, and pre-tensioner towards middle position (40).
12. according to calling station described in one of the claims, which is characterized in that calling station tool there are two loudspeaker (24a,
24b)。
13. according to calling station described in one of the claims, which is characterized in that be arranged on shell front (13) laterally to
The fastening section (42a, 42b) of outer stretching, the fastening section are respectively provided with the opening (43) passed through for retention mechanism.
14. according to calling station described in one of the claims, which is characterized in that be fixedly disposed at least one on calling station
A microphone, and/or it is fixedly disposed on the shell front (13) of calling station (10) at least one interface for microphone
(45)。
15. according to calling station described in one of the claims, which is characterized in that setting is used for head on shell front (13)
At least one interface (46) of headset.
16. according to calling station described in one of the claims, which is characterized in that the opening (28,28a, 28b) is by handle
Element (47a, 47b) covering.
17. being used for the calling station (10) of internal communication network (11), there is the shell (12) of especially cuboid shape,
The shell includes shell front (13) and shell back side (14), wherein is closely densely arranged on shell front (13)
Multiple especially programmable operating elements (15a, 15b, 15c, 15d) and multiple displays (16a, 16b, 16c, 16d),
In, the operating element has multiple selection keies (17a, 17b, 17c, 17d), wherein the calling station is based on passing through operator
Member is provided to the direct receipts of another selected calling station (18a, 18b) of internal communication network to the manipulation of selection key
It listens and/or connection of talking, wherein multiple interfaces (20a, 20b, 20c, 20d) are set on shell back side (14), voltage feed connects
Mouth, data line interface, bnc interface, wherein at least one loudspeaker (24a, 24b) is fixedly disposed on calling station, wherein
The loudspeaker is in the placement space (25) between shell front (13) and shell back side (14) relative to shell front (13)
It places with being staggered (26) backward, and there is loudspeaker (24a, 24b) sound to issue face (27), sound issues face from the sound
Propagate to the opening (28) in shell front (13), wherein the opening has open cross-section (29), the open cross-section
Only account for the sub-fraction that sound issues face (27).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017128115 | 2017-11-28 | ||
| DE102017128115.0 | 2017-11-28 | ||
| DE102018103272.2A DE102018103272A1 (en) | 2017-11-28 | 2018-02-14 | Intercom station for an intercom network |
| DE102018103272.2 | 2018-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109842719A true CN109842719A (en) | 2019-06-04 |
| CN109842719B CN109842719B (en) | 2022-01-18 |
Family
ID=66442494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811234826.9A Expired - Fee Related CN109842719B (en) | 2017-11-28 | 2018-10-23 | Call station for internal communication network |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6751125B2 (en) |
| CN (1) | CN109842719B (en) |
| CA (1) | CA3023039C (en) |
| DE (1) | DE102018103272A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019109830A1 (en) | 2019-04-12 | 2020-10-15 | Riedel Communications International GmbH | Network device, method, and network |
| DE102020127687A1 (en) | 2020-07-17 | 2022-01-20 | Riedel Communications International GmbH | Network, mobile terminal and method for operating a network |
| DE102020127688A1 (en) | 2020-07-17 | 2022-01-20 | Riedel Communications International GmbH | Network, terminal, antenna and method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2636849A1 (en) * | 1976-08-16 | 1978-02-23 | Telefonbau & Normalzeit Gmbh | Telephone handset and dial - has built in loudspeaker with amplifier circuit on board beneath dial |
| EP0462571A1 (en) * | 1990-06-21 | 1991-12-27 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker arrangement in television receiver cabinet |
| CN1213634C (en) * | 2001-05-08 | 2005-08-03 | 松下电器产业株式会社 | Loudspeaker and mobile terminal equipment |
| JP3966318B2 (en) * | 2004-09-09 | 2007-08-29 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
| CN100385304C (en) * | 2004-09-28 | 2008-04-30 | 精工爱普生株式会社 | Electro-optical device and electronic apparatus |
| CN202261691U (en) * | 2011-11-07 | 2012-05-30 | 武汉钢铁(集团)公司 | IP (Internet Protocol)-network-based conversation station |
| CN202488508U (en) * | 2012-02-07 | 2012-10-10 | 东莞宇龙通信科技有限公司 | Handheld communication device and rear casing thereof |
| CN103052288A (en) * | 2011-10-14 | 2013-04-17 | 三星电子株式会社 | Portable terminal |
| CN103227965A (en) * | 2013-05-24 | 2013-07-31 | 吉林大学 | Android intercom system based on WiFi network |
| WO2015149734A1 (en) * | 2014-04-04 | 2015-10-08 | Riedel Communications International GmbH | Intercom network and communication station |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428061Y2 (en) * | 1975-09-10 | 1979-09-10 | ||
| JPS63108273U (en) * | 1986-12-27 | 1988-07-12 | ||
| JP2805990B2 (en) * | 1990-06-21 | 1998-09-30 | 松下電器産業株式会社 | Speaker device for television receiver |
| JP3171542B2 (en) * | 1995-05-26 | 2001-05-28 | 三洋電機株式会社 | Loudspeaker device and television receiver using the same |
| GB2364208B (en) * | 2000-06-30 | 2004-11-17 | Nokia Mobile Phones Ltd | Improved data input |
| CN100556203C (en) * | 2003-06-10 | 2009-10-28 | 哈曼国际工业有限公司 | Audio amplifier with local interface system |
| JP2005032491A (en) * | 2003-07-09 | 2005-02-03 | Matsushita Electric Ind Co Ltd | Switch |
| JP2006191213A (en) * | 2004-12-28 | 2006-07-20 | Citizen Electronics Co Ltd | Electroacoustic transducer and portable terminal |
| JP2007166524A (en) * | 2005-12-16 | 2007-06-28 | Toshiba Corp | Reproducing apparatus |
| KR100831721B1 (en) * | 2006-12-29 | 2008-05-22 | 엘지전자 주식회사 | Apparatus and method for displaying of mobile terminal |
| JP5464582B2 (en) * | 2009-11-25 | 2014-04-09 | 新電元工業株式会社 | Electronics |
| DE102014011963A1 (en) * | 2014-08-15 | 2016-02-18 | Riedel Communications International GmbH | Intercom network and microphone unit |
| DE102017107148A1 (en) | 2016-12-09 | 2018-06-14 | Riedel Communications International GmbH | Intercom network, mobile device and process |
| DE102017107150A1 (en) | 2016-12-09 | 2018-06-14 | Riedel Communications International GmbH | Participants in an intercom network, intercom network and procedures |
| DE102017106946A1 (en) | 2016-12-14 | 2018-06-14 | Riedel Communications International GmbH | Intercom connector for audio connections |
| DE102017116002A1 (en) | 2017-03-28 | 2018-10-04 | Riedel Communications International GmbH | Belt-Pack |
| DE102017116273A1 (en) | 2017-03-30 | 2018-10-04 | Riedel Communications International GmbH | Network device for an intercom network |
-
2018
- 2018-02-14 DE DE102018103272.2A patent/DE102018103272A1/en active Pending
- 2018-10-22 JP JP2018198270A patent/JP6751125B2/en active Active
- 2018-10-23 CN CN201811234826.9A patent/CN109842719B/en not_active Expired - Fee Related
- 2018-11-01 CA CA3023039A patent/CA3023039C/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2636849A1 (en) * | 1976-08-16 | 1978-02-23 | Telefonbau & Normalzeit Gmbh | Telephone handset and dial - has built in loudspeaker with amplifier circuit on board beneath dial |
| EP0462571A1 (en) * | 1990-06-21 | 1991-12-27 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker arrangement in television receiver cabinet |
| CN1213634C (en) * | 2001-05-08 | 2005-08-03 | 松下电器产业株式会社 | Loudspeaker and mobile terminal equipment |
| JP3966318B2 (en) * | 2004-09-09 | 2007-08-29 | セイコーエプソン株式会社 | Electro-optical device and electronic apparatus |
| CN100385304C (en) * | 2004-09-28 | 2008-04-30 | 精工爱普生株式会社 | Electro-optical device and electronic apparatus |
| CN103052288A (en) * | 2011-10-14 | 2013-04-17 | 三星电子株式会社 | Portable terminal |
| CN202261691U (en) * | 2011-11-07 | 2012-05-30 | 武汉钢铁(集团)公司 | IP (Internet Protocol)-network-based conversation station |
| CN202488508U (en) * | 2012-02-07 | 2012-10-10 | 东莞宇龙通信科技有限公司 | Handheld communication device and rear casing thereof |
| CN103227965A (en) * | 2013-05-24 | 2013-07-31 | 吉林大学 | Android intercom system based on WiFi network |
| WO2015149734A1 (en) * | 2014-04-04 | 2015-10-08 | Riedel Communications International GmbH | Intercom network and communication station |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018103272A1 (en) | 2019-05-29 |
| CN109842719B (en) | 2022-01-18 |
| JP6751125B2 (en) | 2020-09-02 |
| JP2019103131A (en) | 2019-06-24 |
| CA3023039A1 (en) | 2019-05-28 |
| CA3023039C (en) | 2022-08-16 |
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