JP3405976B2 - Transmission equipment, electrical plugs, fiber optic plugs and equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission device, an electric plug, an optical fiber plug and a device used between digital audio devices and information devices using a disk or a cassette tape as a medium.

[0002]

2. Description of the Related Art (Conventional Example 1) A structure of an optical fiber link for transmission between audio devices according to a conventional example 1 is shown in FIGS.
2 and FIG. 43. In Conventional Example 1, optical semiconductor element 1
42 is provided with a rectangular connector 3 and a rectangular plug 4 attached to the end of the optical fiber shown in FIG. 42 is fitted and held as shown in FIG. It has a structure for performing optical transmission by realizing optical coupling with an optical fiber, and it is impossible to connect the connector to anything other than a dedicated rectangular plug 4 attached to the optical fiber. I don't have it.

(Conventional example 2) A structure of an optical fiber link for transmission between audio devices according to a conventional example 2 is shown in FIGS.
Shown in. In Conventional Example 2 shown in FIG. 44, a circular connector 7 is provided in a holder 6 that houses and holds the optical semiconductor element 5.
45 has a structure for performing optical transmission by fitting and holding a round plug 9 attached to the tip of the optical fiber and realizing optical coupling between the optical semiconductor element 5 and the optical fiber. A metal plate 8 having elasticity is provided. This metal plate 8 is for fitting and holding a round plug 9 instead of an external take-out terminal. Due to the structure of the connector 7, the small single-head electric plug 1 shown in FIG.
Although 0 can be inserted, no electrical connection is made and no transmission means other than optical transmission is provided.

(Conventional Example 3) FIG. 46 shows a conventional example 3. Conventional Example 3 is a connection device for connecting a plurality of electric systems by fitting a small single-headed electric plug 10 into a female connection member 10a.

(Prior art example 4) FIG. 47 shows a prior art example 4 described in Japanese Utility Model Laid-Open No. 62-193208. By fitting the male connecting member 11 having the connecting protrusion and the female connecting member 12,
A connecting device for connecting a plurality of electric systems, the cable to be connected is composed of an optical fiber 13 and a composite cord in which a plurality of signal transmission lines are combined, and the optical fiber 13 is built in at the end of the composite cord. A male connecting member 11 provided with a plurality of electric connecting terminals 14 is attached. The female connecting member 12 has a male connecting member 11
Optical semiconductor element 16 which is optically coupled to a terminal 15 which is electrically connected to an electrical connection terminal 14 provided in
Are arranged on the substrate. According to the present technology, it is possible to select optical transmission and / or electric signal transmission. However, regarding sharing with a small single-headed electric plug,
This is a technology related to a dedicated connector, which has not been mentioned in the conventional example 4.

(Prior art example 5) FIG. 48 shows a prior art example 5 described in JP-A-58-11008. As a cable for connecting the transmitting and receiving modules, a cable composed of an optical fiber 17 and an electric power supply line 18 is used, and a plug 19 is attached to an end of the composite cord. The optical module is fitted with the plug 19 so as to be electrically connected to the electric power supply line 18 and the power supply terminal 2
0 and an optical semiconductor device that is optically coupled to the optical fiber 17.

According to the conventional example 5, for example, by connecting the power supply terminal of the receiving module to the power supply device, the transmitting / receiving module can be easily connected from the receiving module to the transmitting module only by connecting the transmitting / receiving module with the plug 19 and the composite cord. Power can be supplied, and communication by optical transmission can be realized without using a separate power supply for sending and receiving.

In addition to these, JP-A-57-198419, JP-A-56-17645, and Japanese Utility Model Laid-Open No. 61-
An example in which the basic technique is the same as that of the conventional example 4 is also described in Japanese Patent No. 53706.

[0009]

According to the structures of the optical fiber links according to the conventional examples 1, 2, and 3, three systems for optical transmission, digital and analog electric signal transmission are provided as input / output terminals of digital audio equipment, for example. Will be needed. If so, a large space is required when incorporating into both audio products and the like, which limits downsizing of the device. In addition, it is necessary to select a transmission signal form for a product having a space limitation, which may lead to lack of versatility.

According to the connection devices of the conventional examples 4 and 5,
For example, it is possible to use a single input / output terminal for digital audio equipment, but it requires a dedicated composite cord and plug, and compatibility with cables and plugs currently used for connecting audio equipment has not been shown. No
It is impossible to connect with conventional audio equipment.

Further, since the function of processing each transmission signal is mixed in the device, a separate changeover switch is required unless the form of transmission signal to be used can be recognized. If so, it requires space for that, and the number of parts increases,
Since the assembly man-hours also increase, the cost increases.

[0012] The present invention has been made in view of the above problems, existing can be connected to the electrical plug of the audio apparatus, also the optical or transmission device that can identify the electrical signal transmission by cable used, electrical plugs, fiber optic plug And to provide equipment.

[0013]

Means for Solving the Problems] transmission apparatus of the present invention, up
Provide an electrode part and an insulating part for detecting the type of lug
A first electric plug having a fixed position for transmitting an analog signal and a substantially same shape as the first electric plug are formed.
And place it in a position different from the first electrical plug.
Switch having an electrode section and an insulating section for detecting the type of
A selectively insertable transmission device and a second electrical plug for transmitting the digital signal, the plug being inserted,
Insulation of the first electrical plug or the second electrical plug from the electrode unit for detecting the type of the plug
It is characterized in that it is provided with an identification means for identifying based on a part .

According to the present invention, the plug inserted into the electrode portion for detecting the type of the plug is the first electric plug or the second electric plug.
It can be identified based on the edges .

Preferably, the identifying means identifies the electrode portion of the first electric plug and the insulating portion of the second electric plug so that the inserted plug is the first electric plug or the second electric plug. and identifying configuration which one of either electrical plug.

According to this, by distinguishing the electrode portion of the first electric plug and the insulating portion of the second electric plug, whether the inserted plug is the first electric plug or the second electric plug . It is possible to easily identify which one of them.

Also, the transmission device of the present invention is of the type of plug.
The electrode part and the insulating part for detecting
Having a first electrical plug for transmitting an analog signal
And has substantially the same shape as the first electric plug, and
Put the plug type in a different position from the first electrical plug.
Digital signal having an electrode part for detecting and an insulating part
Second electric plug for transmitting the electric power, and the first electric plug
And having substantially the same shape as the second electric plug
To the first electrical plug and the second electrical plug
Has an insulating part at a different position to detect the plug type.
A transmission apparatus for selectively insertable photoelectric shared <br/> optical fiber plugs for transmitting optical digital signals with a plug being inserted, the optical fiber plug or a first electric plug or second electrical Before plugging
Based on the electrode section and the insulation section for detecting the plug type.
It is characterized in further comprising identifying the identification means have.

According to the present invention, the plug being inserted, or fiber optic plug, a first electrical plug or a second type of said plug which one electrical plug of test
It can be identified based on the electrode portion and the insulating portion for emitting .

Preferably, the identifying means is the first electrical plug or the second electrical plug by identifying the electrode portion of the first electrical plug and the insulating portion of the second electrical plug . Which is the second electrical plug or the optical fiber plug by identifying the electrode portion of the second electrical plug and the insulating portion of the optical fiber plug . It is what

According to this, the electrode portion of each plug is
It is possible to easily identify which plug it is by identifying the or insulating portion.

The electric plug of the present invention is any one of the above.
Second electric plug used in the transmission device of the present invention
A is, the insulating portion is characterized in that provided in the plug base.

According to the present invention, it can be easily distinguished from other electric plugs.

[0023]

Furthermore, since the identifying insulating portion is provided at the base of the plug, the plug can be identified without adversely affecting electric signal transmission.

The optical fiber plug of the present invention, the above-mentioned a the light phi <br/> bar plug used in the transmission apparatus of the photoelectric shared present invention, the optical fiber plug, the first electrical plug and the It is characterized in that an insulating portion used for distinguishing from the second electric plug is provided.

According to the present invention, the optical fiber plug can be distinguished from those electric plugs because the insulating portion used for distinguishing them from the first electric plug or the second electric plug is provided.

The device of the present invention is a device equipped with any of the above-mentioned transmission devices, the above-mentioned second electric plug and / or the above-mentioned optical fiber plug.

According to the present invention, it is possible to obtain a device capable of identifying each plug.

[0029]

[0030]

[0031]

[0032]

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] As shown in FIGS. 1 to 6, an optical system and an electrical system can be selectively applied to a plug / jack type optical / electrical common transmission device according to a first embodiment of the present invention. The optical semiconductor element 22 for transmitting and receiving light to and from the optical fiber cable for optical transmission.
And a plurality of electrical connection terminals 2 for exchanging electricity by connecting to a small single-headed electrical plug 23 (shown in FIG. 6) for electrical transmission.
4, a holding body 25 for accommodating and holding the optical semiconductor element 22 and the electrical connection terminal 24, and an external connector 26 arranged on the outer peripheral surface of the holding body 25 so as to connect the optical semiconductor element 22 and an external circuit. the provided optical fiber plug 27 or the electrical plug 23 of the optical fiber cable is to be Ru are selectively connected.

Here, as shown in FIG. 5, the optical fiber plug 27 of the optical fiber cable has a shape similar to the existing small single-headed electric plug 23 that is generally distributed. That is, a single head 31 is formed at the tip of the optical fiber plug 27, and a constriction 32 is formed on the base side of the single head 31, and an electric plug having a single head 33 and a constriction 34 as shown in FIG. 23 has a similar appearance relationship.

As shown in FIG. 2, the optical semiconductor element 22 has an L
A general optical semiconductor chip 22a, such as an ED or a phototransistor, which is sealed with a transparent resin 22b is used. An external connector 26 for electrically connecting the optical semiconductor chip 22a and an external circuit is drawn out from the lower surface of the optical semiconductor element 22.

The holder 25 is molded by using a non-translucent resin, the electric connection terminal 24 is integrally molded, and the optical semiconductor element 22 is fixedly housed by an adhesive resin. A common cylindrical insertion hole 36 for selectively inserting the plugs 23 and 27 is formed from one end surface (front surface) of the holder 25 to the mounting position of the optical semiconductor element 22.

Here, the depth L of the insertion hole 36 shown in FIG.
1, that is, the distance L1 from one end surface (front surface) of the holder 25 to the mounting position of the optical semiconductor element 22 is given by: L1 = L2 + α (mm) (1) Incidentally, L2 in the formula is the insertion portion 3 inserted into the insertion hole 36 of the optical fiber plug 27 as shown in FIG.
The length is 8a, and is given by, for example, L2 = 14.6 + β (mm) (2). Also, α≈0.2 mm, 0 mm <β <2
mm is desirable.

Further, as shown in FIG. 6, the length L3 of the insertion portion 38b inserted into the insertion hole 36 of the small single-headed electric plug 23.
Is given by, for example, L3 = 14.0 ± γ (mm) (3). Here, γ≈0.6 mm. Therefore, L1>L2> L3 (4) is always satisfied. By setting in this way, each plug 2
3 and 27 can be prevented from coming into contact with the optical semiconductor element 22 and being damaged. Moreover, by bringing the optical fiber plug 27 closer to the optical semiconductor element 22 than the electric plug 23, the optical connection between the optical fiber plug 27 and the optical semiconductor element 22 can be prevented. Optical coupling can be ensured and its optical characteristics can be improved.

As shown in FIGS. 2 and 3, a plurality of grooves 36a are provided on the inner peripheral surface of the insertion hole 36 at positions symmetrical with respect to the hole axis. And the groove 36a
The electrical connection terminal 24 is arranged in the.

As the electric connection terminal 24, metal plates 24a to 24d which are electrically independent from each other are used. Each of the metal plates 24a to 24d is made of an elastic phosphor bronze or the like.
It is g-plated and has a plate thickness of, for example, 0.25 mm.

Of these, the metal plates 24a, 24c, 2
4d is projected inward from the inner periphery of the insertion hole 36 so that it can contact the outer peripheral surfaces of the plugs 23 and 27.

The metal plate 24b is inserted into the insertion hole 36 at a position where it engages with the constrictions 32 and 34 of the single heads 31 and 33 of the plugs 23 and 27 when the insertion of the plugs 23 and 27 is completed. It is projected inward from the circumference.

The metal plates 24a to 24d can be elastically deformed toward the outside of the insertion hole 36 so that the plugs 23 and 27 can be removed. The strength is the constriction 32 of the single heads 31, 33 of the plugs 23, 27 used,
The torque acting on the used plugs 23, 27 is set to be substantially zero when 34 contacts the electrical connection terminal 24.

2 to 4, 39a is a back cover fitted and fixed from the back side of the holding body 25, and 39b is a boss portion for mounting and positioning the back cover to the external mounting board (PWB). Further, in FIG. 6, 23 a to 23 d are electrode portions of the electric plug 23, and each metal plate 24 a to the electric connection terminal 24.
It corresponds to 24d.

A method of using the optical / electrical common transmission device having the above configuration will be described. First, when optical transmission is performed through an optical fiber, the optical fiber plug 27 shown in FIG.
Is inserted into the insertion hole 36. At this time, the metal plate 24 as the electrical connection terminal 24 is provided on the outer peripheral surface of the optical fiber plug 27.
Proceed while pushing a, 24d, and 24c outward. Further, the single head 31 of the optical fiber plug 27 is attached to the metal plate 24.
Proceed while pushing b outward. Then, the constriction 32 of the optical fiber plug 27 and the metal plate 2 of the electrical connection terminal 24.
When they come into contact with and mesh with each other, the torque acting on the optical fiber plug 27 becomes almost 0, and the optical fiber plug 27 is completely fitted. Then, the distance between the front end surface of the optical fiber plug 27 and the front surface of the optical semiconductor element 22 is calculated from the above formula (1).
α (≈0.2 mm). Since this distance is suitable for efficiently stabilizing the optical coupling between the optical fiber plug 27 and the optical semiconductor element 22, the optical characteristics thereof are improved.

When removing the optical fiber plug 27, the metal plate 24b of the electrical connection terminal 24 having elasticity is used.
Is pushed outward by the single head 31 of the plug 27,
In the process of pulling out as it is, the engagement with the constriction 32 of the optical fiber plug 27 is released, so that the optical fiber plug 27 can be easily pulled out.

Next, when electric transmission is performed through the electric plug 23, the small single-headed electric plug 23 shown in FIG. 6 is inserted into the insertion hole 36. The insertion procedure is similar to that of the above-described optical fiber plug 27. When the electric plug 23 is completely inserted, the metal plate 24a of the electric connection terminal 24
24d and the electrode portions 23a to 23d of the electric plug 23 are electrically connected to each other, and an external electric signal can be taken out. At this time, the distance between the front end surface of the electric plug 23 and the front surface of the optical semiconductor element 22 is calculated from the equations (1), (2) and (3).
Since it is at least (α + β) mm, it is possible to prevent the optical system of the optical semiconductor element 22 from being damaged by the electric plug 23.

The external shape of the holder of this embodiment is
There is no problem with the size of adding a portion capable of holding an optical semiconductor element to the conventional electrical connection device, and since the optical fiber plug 27 also usually has a diameter of 3.5 mm, both the conventional electrical connection device and the optical transmission device are provided. Will be smaller than the total size of. Moreover, since one optical / electrical transmission device according to the present embodiment can perform optical / electrical transmission, the number of parts can be reduced and the price can be reduced.

Second Embodiment A plug / jack type optical / electrical common transmission device according to a second embodiment of the present invention is used, for example, for signal input / output of an audio device, and has three types of optical signals, digital electric signals and analog electric signals. The system is transmitted. That is, when used in an output system, as shown in FIG. 7A, three types of output are provided: an analog electric signal output for line-out or headphones, a digital electric signal output by a coaxial wire, and a digital optical signal output. Are performed by the same optical-electrical shared transmission device. When used in an input system of an audio device, as shown in FIG. 7B, three types of input, an analog electric signal input such as a line-in or a microphone, a digital electric signal input of a coaxial wire, and a digital optical input are used. Are performed by the same optical-electrical shared transmission device. In the plug-jack type optical / electrical common transmission device of this embodiment, as shown in FIGS. 8 to 16, the transmission system of the plugs 23, 27, 45 inserted into the insertion holes 36 of the holder 25 is an optical system. Method identification means (detection method) for identifying whether the method is digital electric method or analog electric method
Step) 41 and any one of the plugs 23, 27, 45 inserted into the insertion hole 36 for identifying whether or not the insertion identification means (detection means ).
Output means) 42 is provided.

The system identification means 41 is shown in FIGS.
6, an optical fiber insulation identification pattern (insulation part) 43 in which an insulating material such as a synthetic resin is formed on the outer periphery of the optical fiber plug 27, and a small single-head type for transmitting a three-pole analog electric signal An insulating identification pattern (insulating portion) 44 for an analog type electric plug in which an insulating material such as a synthetic resin is formed on the outer peripheral portion of the electric plug 23, and an insulating material such as a synthetic resin is formed on the outer peripheral portion of the digital electric plug 45. Insulation identification pattern (insulation part) 46 for digital electric plug
It is provided with an identification terminal 47 arranged in the insertion hole 36 of the holding body 25.

The electric connection terminal 24 and the identification terminal 4
7 is each plug 23, 27, as shown in FIGS.
When the plug 45 is inserted into the insertion hole 36, each plug 23, 2
It is arranged at a position where it can contact the outer peripheral surfaces of 7, 45. Then, as shown in FIG. 12, FIG. 14 and FIG. 16, the patterns of the respective insulation identification patterns 43, 44 are determined by the combination of the results of the electrical continuity between the electrical connection terminal 24 and the identification terminal 47. It is configured so that the transmission method can be identified. This will be described in detail for each plug.

First, in the structure of the analog electric plug 23, as shown in FIG. 13, a sleeve portion 23a as a ground electrode portion and a tip portion 23 as a signal electrode portion.
b, the ring portion 23c as the signal electrode portion and the ring portion 23d as the grounding electrode portion are brought into contact with the metal plates 24a to 24d of the electrical connection terminal 24, respectively, to perform electrical signal transmission in each signal form. In addition, the electrode portions 23b,
In order to make 23c and 23d electrically independent electrodes,
Insulating parts 52 and 53 are formed. However, the three-pole analog electric plug is different from the four-pole analog electric plug shown in FIG. 6 in that the sleeve portion 23a and the ring portion 23d are different from each other.
The insulating part is omitted between and, and electrical continuity between them is secured. The insulating parts 52 and 53 form the insulating identification pattern 44 for the analog electric plug.

The optical fiber plug 27 is shown in FIG.
As described above, it is a metal body whose contour is similar to that of a small single-headed electric plug and which can be inserted into and removed from the insertion hole 36 of the holder 25. With a structure having an optical fiber cable inside the optical fiber plug 27, light is transferred to and from the optical semiconductor element 22 in the holding body 25. The optical fiber plug 27
In terms of the original optical transmission function, the terminal does not need to be an electrical contact, but it is necessary to bring the identification terminal 47 into contact with the outer peripheral surface to identify the transmission method. The metal body 57 is exposed so that a part of the surface is made conductive. That is, as the optical fiber insulation identification pattern 43, the portions corresponding to the sleeve portion 23a, the ring portion 23d, and the insulating portion 52 in the analog electric plug 23 are covered with the insulating portion 56 made of synthetic resin. The metal body 57 is exposed at portions of the analog electric plug 23 that correspond to the tip portion 23b, the ring portion 23c, and the insulating portion 53, and the electrode portion is used only for identification. With this structure, the optical fiber insulation identification pattern 43 is formed.

Furthermore, the shape of the small single-headed electric plug 45 for digital signal transmission is the same as the analog electric plug 2 described above.
3 is similar, except that the sleeve portion 23a
An insulating portion 59 for identifying a digital electric plug is provided in a portion corresponding to.

In this way, each plug 23, 27, 45
By changing the position and width of each identification insulating portion without affecting each transmission, each insulation identification pattern 43, 44, 46 is different, and therefore each transmission method can be identified.

Metal plates 24b, 2 of the electric connection terminal 24
4c and 24d are electrical signal transmission terminals similar to those in the first embodiment. As shown in FIGS. 8 and 9, the metal plate 24b is arranged at a position where it can contact the tip portions 23b of the electric plugs 23 and 45 and the metal body 57 of the optical fiber plug 27. The metal plate 24c is arranged at a position where it can contact the ring portions 23c of the electric plugs 23 and 45 and the metal body 57 of the optical fiber plug 27. The metal plate 24d has the ring portion 2 of the electric plugs 23 and 45 as shown in FIGS.
It is arranged at a position where it can come into contact with the insulating portion 56 of the optical fiber plug 27.

The identification terminal 47 is composed of metal plates 61, 62 having the same or similar shape as the metal plates 24b, 24c, 24d of the electric connection terminal 24. Of these, the metal plate 61 is the sleeve portion 2 of the electric plug 23.
3a, the insulating portion 59 of the electric plug 45, and the insulating portion 56 of the optical fiber plug 27 are disposed at positions where they can come into contact with each other.
The metal plate 62 is the ring portion 2 of the electric plug 23, 45.
It is arranged at a position where it can come into contact with the insulating portion 56 of the optical fiber plug 27.

The insertion identifying means 42 includes the insertion identifying terminal 6
3 (metal plate), which is arranged at a position where it can contact the ring portions 23c of the electric plugs 23 and 45 and the metal body 57 of the optical fiber plug 27.

In the above structure, first, the plugs 23, 2
When any one of 7 and 45 is inserted into the insertion hole 36, as shown in FIG.
2, FIG. 14 and FIG. 16, the metal plate 24c and the insertion identifying terminal 63 contact the ring portion 23c of the plug or the metal body 57.

Here, the ring portion 23c or the metal body 57 is formed.
Is a region that does not have an insulating portion, so if any plug 23, 27, 45 is inserted, the plug 23,
Electrical conduction is secured between the metal plate 24c and the insertion identifying terminal 63 through the conductive outer peripheral surfaces of 27 and 45.
This makes it possible to determine the presence or absence of any of the plugs 23, 27, 45.

Next, the system of each plug 23, 27, 45 will be identified. Here, the metal plate 24d and the metal plate 6
Each plug is recognized based on the result of whether or not electrical connection between the terminals 1 and 62 is possible.

That is, when the optical fiber plug 27 is inserted, as shown in FIG. 12, the metal plate 24d and the metal plate 61,
Since 62 contacts the insulating portion 56 of the optical fiber plug 27, respectively, the metal plate 24d and the metal plate 61 are insulated from each other, and the metal plate 24d and the metal plate 62 are insulated from each other, so that conduction is impossible.

When the analog type electric plug 23 is inserted, the metal plate 24d and the metal plates 61 and 62 come into contact with the sleeve portion 23a and the ring portion 23d of the small single-head type electric plug 23, respectively, as shown in FIG. Plate 24d and metal plate 61
And the metal plate 24d and the metal plate 62 can be electrically connected to each other due to contact with the electrode portions 23a and 23d of the electric plug 23.

When the digital electric plug 45 is inserted, as shown in FIG. 16, the metal plate 24d and the metal plate 62 can be electrically connected to each other through the ring portion 23d of the single-head electric plug. However, since the metal plate 61 comes into contact with the insulating portion 59, the metal plate 24d and the metal plate 61 are insulated from each other and cannot be electrically connected.

By the combination of the above-mentioned conduction or non-conduction, it is possible to identify each plug type of the shared optical / electrical transmission device. The plugs 23, 27, 45 can be identified automatically by the method identifying means 41 as described above. However, before inserting the plugs 23, 27, 45 into the insertion holes 36, the insulation identifying patterns 43, 4 are inserted.
It goes without saying that 4, 46 can be visually identified.

[Third Embodiment] In the second embodiment described above, the optical fiber plug 2 as shown in FIG. 11 has a function of identifying whether or not a plug is inserted and the transmission method.
When 7 is inserted, as shown in FIG. 12, the two metal plates 24b and 24c are short-circuited through the metal body 57 of the optical fiber plug 27, which may cause an electrical trouble depending on the external circuit. There is a nature. Similarly, the electrically independent metal plate 24c and the insertion identifying terminal 63 may be short-circuited through the metal body 57 of the optical fiber plug 27 as shown in FIG. Then, various electrical troubles such as giving noise from the insertion identifying terminal 63 side to the metal plate 24c side, damaging or running away of a digital circuit such as a microcomputer externally connected to the insertion identifying terminal 63 may occur. It may occur. Therefore, in this embodiment, electrical troubles are prevented by preventing a short circuit between different electrical connection terminals, and
By contacting the terminal as the insertion identifying means 42 without interposing the outer peripheral surface of the plug, damage to the external digital circuit
It is intended to prevent runaway or the like.

The optical / electrical common transmission device of this embodiment is shown in FIG.
The optical fiber plug 27 of FIG. 23, the three-pole analog electric plug 23 of FIG. 24, and the digital electric plug 45 of FIG. 15 are selectively used. As shown in FIG. 17 to FIG. It is premised that a plurality of pairs of terminals 47 are provided by providing the same number of two terminals 47 and corresponding one-to-one with each other. This point is similar to the second embodiment except that each terminal 2
At least some of the pins 4, 47 are arranged with respect to the insulation identification patterns 43, 44 of the plugs 23, 27 so that the terminals 24, 47 of different pairs do not short-circuit through the outer peripheral surfaces of the plugs 23, 27. The position is displaced.

This will be described in detail. When the optical fiber plug 27 is used as shown in FIG. 22, the metal plate 24b and the metal plate 24c serve as terminals for analog output. Here, the insulating portion 56 of the optical fiber plug 27 is designed to extend to a position between the metal plate 24b and the metal plate 24c. Then, the metal plate 24b and the metal plate 24c have a structure that does not short-circuit through the metal body 57 of the optical fiber plug 27, and electrical trouble can be prevented.

Further, the insertion identifying means 42 also has a configuration different from that of the second embodiment. That is, the insertion identifying means 42 is arranged in the insertion hole 36 of the holding body 25 at a position where it does not contact the plugs 23, 27, 45 used, and the inner terminal 72 arranged inside the outer terminal 71. A mechanical contact consisting of and is used.

Here, the electrical connection terminals 24 and the like are connected to the plugs 2 respectively.
While the outer terminals 71 can be directly contacted with the outer peripheral surfaces of the plugs 3, 27, 45, the outer terminals 71 are arranged so as to be displaced from the electrical connection terminals 24 in the outer peripheral direction, so that the outer peripheral surfaces of the plugs 23, 27, 45 are arranged. It is configured so that it does not come into direct contact with.

The outer terminal 71 is made up of the other metal plates 24b, 2
4c, 61, 62 does not require elasticity. Also,
It is also necessary to improve and maintain reliability such as durability as a mechanical contact. In consideration of these things, in the present embodiment,
As the material of the external terminals 71, berylim copper plated with Ag is used, and the plate thickness thereof is 0.2 mm. On the other hand, other metal plates 24b, 24c, 61, 6
As the second embodiment, as in the first embodiment, a phosphor bronze or the like plated with Ag is used, and its plate thickness is 0.25.
It is set to mm.

The inner terminal 72 is connected to another metal plate 24b,
Similar to 24c, 61, and 62, an elastic phosphor bronze or the like plated with Ag is used, the plate thickness of which is 0.25 mm, and the fixed portion 72a fixed to the lower portion of the holding body 25 is used. And a movable portion 72b extending from one end of the fixed portion 72a so as to be elastically deformable, the movable portion 72b is formed in a V shape in a front view. Here, the plugs 23, 27, 45 are inserted in the movable portion 72b in a natural state when the plugs are inserted.
Is formed with a projection 72c for abutting against. The movable portion 72b is provided with the plugs 23, 2 when the plug is inserted.
A contact position S1 (see FIGS. 21 and 22) that is pressed by 7, 45 to contact the outer terminal 71, and a non-contact position S2 that is in non-contact with the outer terminal 71 in a natural state when the plug is removed (FIG. 21). 17 and FIG. 21).

As described above, by using the mechanical contact as the insertion identifying means 42, it is possible to judge whether or not the plug can be inserted without providing a metal plate at a position facing the metal plate 24c as shown in FIG. Therefore, the metal plate 24b and the metal plate 2
It is possible to prevent a short circuit between the metal plates 4c and 4c, and to prevent noise from being generated in the other metal plates 22b and 24c when a signal is applied to one of the metal plates 24b and 24c from an external digital circuit or the like. In this way, the metal plates 24b, 24
By arranging the arrangement of c, 61, 62 and the regions of the insulating portion 56 of the optical fiber plug 27 and the metal body 57, it is possible to realize a structure in which the output terminals of the shared optical / electrical transmission device are not short-circuited.

[Fourth Embodiment] As shown in FIGS. 25 to 29, a plug / jack type optical / electrical common transmission device according to a fourth embodiment of the present invention employs an optical system, a digital electric system, and an analog electric system. It is similar to each of the above-described embodiments in that it is selectable, and particularly, the insertion hole 36 of the holding body 25 is
A point is provided with a method identifying means 41 for identifying which method the plug inserted into the plug is, and an insertion identifying means 42 for identifying whether any plug is inserted into the insertion hole 36. In the same manner as the second and third embodiments, the electric connection terminal 24 and the identification terminal 47 are used.
The same arrangement as in the third embodiment is used for the above, but the present embodiment is different from the above-described embodiments in the current path for checking the electrical continuity of the terminals 24 and 47.

That is, the plug / jack type optical / electrical common transmission device according to the present embodiment has the insertion identifying means 4 as shown in FIG.
The second inner terminal 72 is ground (GND) as a ground terminal.
The metal plates 61, 62 and the outer terminal 71 are connected to resistive elements (pull-up resistors) 81, 82, 83.
Are connected to the constant voltage power supply Vref via the. As a result, while the inner terminal 72 is in contact with the outer terminal 71, the outer terminal 71 is short-circuited to the ground, so that the potential (output) V71 of the outer terminal 71 is low, but the inner terminal 72 is not connected to the outer terminal 71. The potential (output) V71 of the outer terminal 71 becomes high when the contact is not made. Also, the inner terminal 72
Is in contact with the ring portion 23d of the electric plugs 23 and 45 and the metal plate 62 is in contact with the ring portion 23d of the electric plugs 23 and 45, the metal plate 62 is short-circuited to the ground, so that the potential V62 becomes low. However, when the inner terminal 72 or the metal plate 62 is brought into a non-contact state with the ring portions 23d of the electric plugs 23 and 45, the potential V62 of the metal plate 62 becomes high.
Similarly, the inner terminal 72 is connected to the ring portion 23 of the electric plug 23.
While the metal plate 61 is in contact with d and the metal plate 61 is in contact with the sleeve portion 23a of the electric plug 23, the metal plate 61 is short-circuited to the ground, so that the potential V61 becomes low.
Is not in contact with the ring portion 23d or the metal plate 6
When 1 becomes a non-contact state with the sleeve portion 23a of the electric plug 23, the potential V61 of the metal plate 61 becomes high.

The rest of the configuration is the same as that of each of the above-described embodiments. For example, each plug 23, 27, 45 is formed to have a single head and a constriction as in the first embodiment. . Further, the depth L1 of the insertion hole 36, the length L2 of the insertion portion inserted into the insertion hole 36 of the optical fiber plug 27, and the insertion hole 36 of the small single-headed plug 23 or a plug 45 having a shape similar thereto. The relationship with the length L3 of the insertion portion inserted in the is L1>L2> as in the first embodiment.
It is L3.

Here, FIG. 31 shows plugs 23, 27, 45.
31 shows the potentials V71, V62, V61 of the outer terminal 71 and the metal plates 61, 62 for the types of FIG.
“H” in the inside indicates a high state, and “L” indicates a low state.

First, when the analog electric plug 23 is inserted, the inner terminal 72 is pushed by the plug 23 and comes into contact with the outer terminal 71, and the outer terminal 71 is short-circuited to the ground. Become low. Further, since the metal plate 62 contacts the ring portion 23d of the electric plug 23, the metal plate 62 is short-circuited to the ground via the ring portion 23d of the electric plug 23 and the inner terminal 72, and the potential V62 is reached.
Becomes low. Further, since the ring portion 23d of the plug 23 and the sleeve portion 23a are continuous as a metal portion, the metal plate 61 is short-circuited to the ground via the sleeve portion 23a of the electric plug 23, the ring portion 23d and the inner terminal 72, and the potential V61 is generated. Becomes low. That is, all the potentials V71, V62, V of the outer terminal 71 and the metal plates 61, 62.
61 goes low.

Next, when the digital electric plug 45 is inserted, like the analog electric plug 23, the outer terminal 71 and the inner terminal 72 are electrically connected,
Further, the metal plate 62 and the inner terminal 72 are electrically connected via the ring portion 23d of the plug 45, but since the portion corresponding to the sleeve portion 23a of the analog electric plug 23 is the insulating portion 59, The metal plate 61 and the inner terminal 72 are not electrically connected. Therefore, the potentials V71 and V62 of the outer terminal 71 and the metal plate 62 are low,
The potential V61 of the metal plate 61 becomes high.

When the optical fiber plug 27 is inserted, the ring portion 23d of the analog electric plug 23 is inserted.
Since the portion corresponding to the sleeve portion 23a is the insulating portion 56, only the outer terminal 71 is electrically connected to the inner terminal 72. That is, only the potential V71 of the outer terminal 71 becomes low, and the metal plate 61, the metal plate 62
The potentials V61 and V62 of are high.

Any of the plugs 23, 27, 45
Is not inserted, the inner terminal 72 is the outer terminal 71.
Since the metal plate 61, the outer terminal 71, and the metal plate 62 are not connected to the ground because they do not come into contact with each other, their potential V7
1, V62, V61 are all high.

As described above, by detecting the potentials V61, V62, V71 of the metal plate 61, the metal plate 62 and the outer terminal 71, the type of the inserted plugs 23, 27, 45 and the presence / absence of the plug insertion can be identified. be able to. This identification may be performed by an external circuit such as a microcomputer on the mounting board.

By the way, in particular, when a voltage is applied to the sleeve portion 23a and the ring portion 23d of the electric plugs 23 and 45, electric signals other than the original signals input to and output from the plugs 23 and 45 are input. Then, noise will be mixed into the original signal. However, in the present embodiment, since the inner terminal 72 is grounded, the plugs 23, 27, 45 can be fed with a slight current.
The type and presence / absence of plug insertion can be identified. Then, it is not necessary to apply a high voltage to the metal plate 61, the outer terminal 71, and the metal plate 62.
It is possible to reduce the noise of the plugs 23, 27, 45 that are generated when a high voltage is applied to the wires 7, 45.

[Fifth Embodiment] According to the structure of the plug-jack type optical / electrical common transmission device according to the first to fourth embodiments, FIGS. 1 to 4, 8 to 10, and 17 to 21. , A plurality of metal plates 2 for transmitting and receiving electricity by connecting to a small single-head type electric plug for electric transmission.
The optical semiconductor element 22 for transmitting and receiving light to and from the optical fiber cable for optical transmission is housed and held in the holder 25 having the built-in 4a to 24d, and the external connector 26 thereof is once before reaching the bottom surface of the holder 25. It is bent and arranged so as to be flush with the bottom surface of the holding body 25. For this reason, the height from the mounting substrate 84 of the optical-electrical shared transmission device is equal to the height of the transparent resin 22b of the optical semiconductor element 22 and the external connector 2.
6 and the distance from the bottom surface of the translucent resin 22b to the bending position. Then, the height from the bottom surface of the translucent resin 22b to the bending position is hindered from being reduced.

Therefore, as shown in FIGS. 32 and 33, a proposal example in which the external connector 26 is arranged perpendicularly to the bottom surface of the holding body 25 and is inserted into the mounting board 84 as it is also conceivable. However, in the proposed examples shown in FIGS. 32 and 33, the height from the mounting substrate 84 of the shared optical / electrical transmission device is the height of the transparent resin 22b of the optical semiconductor element 22 and the bottom surface of the transparent resin 22b. It is determined by the total of the distance to the tie bar uncut portion 26b of the external connector 26. Therefore, it has been a limiting factor when further height reduction is desired. The shared optical-electrical transmission device of the present embodiment is configured so as not to be limited by the height of the light-transmissive resin 22b in order to reduce the height.

That is, in the shared optical / electrical transmission device of this embodiment, as shown in FIGS. 34 and 35, the pull-out surface (bottom surface) 85 from which the external connector 26 of the optical semiconductor element 22 is pulled out.
Is the end surface (bottom surface) 8 of the holding body 25 in contact with the mounting substrate 84.
6 and the external connector 2 arranged on substantially the same plane.
6 is a drawer portion 87 that is drawn out perpendicularly to the end surface 86 of the holding body 25, and a bent portion 88 that is bent from the tip of the drawer portion 87 in parallel with the end surface 86 of the holding body 25. The lead-out dimension T1 of the lead-out portion 87 is set to be substantially equal to the thickness dimension T2 of the mounting substrate 84. That is, the external connector 26 is configured such that the lead-out portion 87 penetrates the mounting board 84 and the tip of the bent portion 88 is pulled out laterally from the back surface of the mounting board 84. Therefore, the mounting board 84 has the metal plate 2
Not only the through hole 91 for electrical connection terminal penetrating 4a to 24d, 61, 62, but also the through hole 92 for connector penetrating the external connector 26 is used.

In the above structure, when mounting on the mounting board 84, first, the bent portion 88 of the external connector 26 is inserted into the connector through hole 9 of the mounting board 84 as shown in FIGS. 36 and 37.
Insert in 2. Then, when the drawer portion 87 is inserted into the connector through hole 92, the holding body 25 is pushed down while rotating downward. Then, while inserting the drawer portion 87 into the connector through hole 92 as it is, the metal plate 2
4a to 24d are inserted into the through holes 91 for electrical connection terminals.
After that, the metal plates 24a to 24d and the printed wiring circuit (not shown) on the back surface of the mounting substrate 84 may be connected by soldering or the like.

By the way, when the lead-out surface 85 of the optical semiconductor element 22 and the bottom surface 86 of the holder 25 are arranged on substantially the same plane as described above, the lead-out surface 85 of the optical semiconductor element 22 contacts the surface of the mounting substrate 84. The optical semiconductor element 22 and the mounting substrate 84 are the same as in the first to fourth embodiments.
It is possible to prevent a gap from being generated between the two. Therefore,
The height of the optical semiconductor element 22 from the front (upper) surface of the mounting substrate 84 can be reduced by the amount of the lead-out portion 87, and therefore the holder 25
It is possible to reduce the height of the optical-electrical shared transmission device including the above, and it is possible to particularly promote the thinning of the portable device.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

For example, in the first embodiment, the distance between the front end surface of the optical fiber plug 27 and the front surface of the optical semiconductor element 22 is about 0.2 mm, but it is 0.0 mm to 0.5 mm.
In the range up to, it is possible to maintain good optical characteristics of both.

In the first embodiment, the four-pole type analog electric plug 23 has been described as an example, but it may be applied to a three-pole type or two-pole type, for example. On the contrary, in the second embodiment and the third embodiment,
The analog electric plug 23 has been described by taking the three-pole type as an example, but it may be applied to, for example, a four-pole type or a two-pole type.

Further, as shown in FIGS. 38 and 39, in order to be compatible with solder reflow, the design may be changed by changing the take-out direction of the metal plate in the holder in consideration of the material of the optical semiconductor element and the like. .

Further, although the inner terminal 72 of the third and fourth embodiments uses a bent piece having elasticity, for example, the outer terminal 71 is arranged on the upper portion of the holding body 25, and the inner terminal 72 is arranged. It is also possible that the plug is arranged on the upper part of the insertion hole 36 so that it can freely come into contact with and separate from the outer terminal 71 and the inner terminal 72 is brought into contact with the plugs 23, 27, 45 by its own weight.

Further, the resistance element 8 used in the fourth embodiment.
Although 1, 82 and 83 use ordinary resistors, semiconductor devices such as diodes or capacitors may be used instead of these resistors.

Further, in the fourth embodiment, the outer terminal 71
And a constant voltage power supply Vref at one end of the metal plates 62, 61.
The pull-up resistors 81, 82, 83 connected to each other were connected, but instead of this, as shown in FIG.
1, 62 and the outer terminals 71 are connected to a constant current power supply Ai, and resistance elements 81, 82, 83 are connected to the connection intermediate points between the constant current power supply Ai and the metal plates 61, 62 and the outer terminals 71. Good. In this case, the inner terminal 72 is the outer terminal 7
While the outer terminal 71 is short-circuited to the ground while being in contact with No. 1, no current flows through the resistance element 81, and when the outer terminal 71 and the metal plates 62 and 61 are electrically connected, each metal plate 61 is connected. , 62 are short-circuited to the ground, so that no current flows through the resistance elements 82, 83. On the other hand, when the inner terminal 72 comes out of contact with the outer terminal 71, the current from the constant current power supply Ai flows to the pull-up resistor 81 side.
In addition, even if the inner terminal 72 is in contact with the outer terminal 71,
When the outer terminal 71 and the metal plates 62, 61 are not electrically connected, a current flows through the resistance elements 82, 83. in this way,
The inserted plugs 23, 27, 4 are detected by detecting whether or not a current flows through each of the resistance elements 81, 82, 83.
It is possible to identify the 5 types and the presence or absence of plug insertion.

[0096]

As is apparent from the above description, according to the transmission device of the present invention, the electrode for detecting the type of plug is used.
Signal that has a part and an insulating part in a predetermined position
A first electrical plug for transmitting said first electrical flop
The first electric plug having the same shape as the lug and having the same shape.
Electrode part for detecting the type of plug at a position different from
And a second electrical plug for transmitting digital signals and an insulating portion is selectively insertable or plug being inserted, which of the one first electrical plug or a second electrical plug Of the first and second electrical plugs
Based on electrode part and insulation part to detect plug type
Since the identifying means for identifying is inserted, it is possible to identify whether the inserted plug is the first electric plug or the second electric plug. Further, the identifying means identifies whether the inserted plug is the first electrical plug or the second electrical plug by identifying the electrode portion of the first electrical plug and the insulating portion of the second electrical plug. With the configuration for identifying which is the plug, it can be easily identified whether the inserted plug is the first electric plug or the second electric plug. Further, according to the transmission device of the present invention, an electrode unit for detecting the type of plug
An analog signal that has a
A first electrical plug for delivery and the first electrical plug
And has the same shape as that of the first electric plug and
And the electrode part for detecting the plug type at different positions
A second electrical plug for transmitting a digital signal having an insulating portion.
A lug, the first electrical plug and the second electrical plug.
The first electric plug having the same shape as the lug and having the same shape.
And the plug at a position different from the second electric plug.
An optical digital signal that has an insulating part for detecting the type
Selectively insertable der an optical fiber plug for transmitting
The inserted plug is an optical fiber plug or
Electrode part and insulating part for detecting the type of the plug, whether it is the first electric plug or the second electric plug
Since the identifying means for identifying based on the above is provided, it is possible to identify whether the inserted plug is the optical fiber plug, the first electric plug or the second electric plug. Further, the identifying means identifies the first electrical plug or the second electrical plug by identifying the electrode portion of the first electrical plug and the insulating portion of the second electrical plug, In addition, by identifying the electrode portion of the second electric plug and the insulating portion of the optical fiber plug to identify whether it is the second electric plug or the optical fiber plug, the electrode portion and the insulating portion of each plug are identified. By identifying, it is possible to easily identify which plug it is. Further, the electric plug of the present invention is used in any one of the above-mentioned transmission devices of the present invention.
A second electrical plugs, the insulation portion, since the configuration provided on the plug base portion, without adversely affecting the electrical signal transmission, allows the identification of the plug.
Further, the optical fiber plug of the present invention is the above optical fiber plug for use in the transmission apparatus of the photoelectric shared present invention described above, the optical fiber plug, and said first electrical plug and the second electrical plug Since the insulation used for identification is provided, the fiber optic plugs can be distinguished from their electrical plugs. Further, according to the device of the present invention, since the transmission device according to any one of the above, the second electric plug, and / or the optical fiber plug is provided, a device capable of identifying each plug can be obtained. You can

[Brief description of drawings]

FIG. 1 is a plan view of a shared optical / electrical transmission device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in which the internal mechanism of FIG. 1 is omitted.

FIG. 3 is a sectional view taken along line BB in which the internal mechanism of FIG. 1 is omitted.

FIG. 4 is a sectional view taken along line CC of FIG. 1 in which the internal mechanism is omitted.

FIG. 5 is a diagram showing an optical fiber plug according to the first embodiment of the present invention.

FIG. 6 shows a four pole analog electrical plug.

7A and 7B are diagrams showing an optical-electrical shared transmission device and a plug according to a second embodiment of the present invention, FIG. 7A showing a case where an optical-electrical shared transmission device is used as an output system, and FIG. It is a figure which shows the case where an optical-electrical shared transmission device is used.

FIG. 8 is a plan view of a shared optical / electrical transmission device according to a second embodiment of the present invention.

FIG. 9 is a side view of the shared optical / electrical transmission device according to the second embodiment of the present invention.

FIG. 10 is a front view of a shared optical / electrical transmission device according to a second embodiment of the present invention.

FIG. 11 is a diagram showing an optical fiber plug according to a second embodiment of the present invention.

FIG. 12 is a schematic view of the contact position relationship between the optical fiber plug and the terminal of the transmission device according to the second embodiment of the present invention.

FIG. 13 shows a three pole analog electrical plug.

FIG. 14 is a schematic view of a contact positional relationship between a three-pole analog electric plug and a terminal of a transmission device.

FIG. 15 is a diagram showing a coaxial digital plug.

FIG. 16 is a schematic view of a contact position relationship between a coaxial digital plug and a terminal of a transmission device.

FIG. 17 is a principle diagram of a transmission device according to a third embodiment of the present invention.

FIG. 18 is a plan view of a shared optical / electrical transmission device according to a third embodiment of the present invention.

FIG. 19 is a side view of a shared optical / electrical transmission device according to a third embodiment of the present invention.

20 is a sectional view taken along line DD of FIG. 18 in which the internal mechanism is omitted.

21 is a cross-sectional view taken along line EE in which the internal mechanism of FIG. 18 is omitted.

FIG. 22 is a schematic view of the contact position relationship between the optical fiber plug and the terminal of the transmission device according to the third embodiment of the present invention.

FIG. 23 is a diagram showing an optical fiber plug according to a third embodiment of the present invention.

FIG. 24 shows a three pole analog electrical plug.

FIG. 25 is a front view of a shared optical / electrical transmission device according to a fourth embodiment of the present invention.

FIG. 26 is a plan view of a shared optical / electrical transmission device according to a fourth embodiment of the present invention.

FIG. 27 is a side view of a shared optical / electrical transmission device according to a fourth embodiment of the present invention.

28 is a cross-sectional view taken along line FF of FIG. 26, where the internal mechanism is omitted.

29 is a cross-sectional view taken along line GG of FIG. 26, in which the internal mechanism is omitted.

FIG. 30 is a circuit conceptual diagram of an optical / electrical shared transmission device according to a fourth embodiment of the present invention.

FIG. 31 is a diagram showing the relationship between the type of plug and the output at each terminal according to the fourth embodiment of the present invention.

FIG. 32 is a side view of a proposed example in which an external connector is pulled out perpendicularly to the bottom surface.

FIG. 33 is a cross-sectional view of a proposed example in which an external connector is pulled out perpendicularly to the bottom surface.

FIG. 34 is a side view of a shared optical / electrical transmission device according to a fifth embodiment of the present invention.

FIG. 35 is a cross-sectional view of a shared optical / electrical transmission device according to a fifth embodiment of the present invention.

FIG. 36 is a diagram showing an operation of mounting the shared optical / electrical transmission device of the fifth embodiment of the present invention on a mounting substrate.

FIG. 37 is a diagram showing a state in which the optical-electrical shared transmission device of the fifth embodiment of the present invention is mounted on a mounting board.

FIG. 38 is a plan view showing an optical-electrical shared transmission device according to another embodiment of the present invention.

FIG. 39 is a side view showing a shared optical / electrical transmission device according to another embodiment of the present invention.

FIG. 40 is a circuit conceptual diagram of an optical-electrical shared transmission device according to another embodiment of the present invention.

FIG. 41 is an internal structural diagram of an optical transmission device of Conventional Example 1.

FIG. 42 is a schematic view of an optical fiber plug of Conventional Example 1.

43 is an external perspective view of the optical transmission device of Conventional Example 1. FIG.

FIG. 44 is an internal structural diagram of an optical transmission device of Conventional Example 2.

FIG. 45 is a schematic view of an optical fiber plug of Conventional Example 2.

FIG. 46 is an external perspective view of an electrical connection device of Conventional Example 3.

FIG. 47 is an internal structural diagram of a shared optical / electrical transmission device of Conventional Example 4.

FIG. 48 is an external perspective view of an optical-electrical shared transmission device of Conventional Example 4.

[Explanation of symbols]

22 Optical semiconductor device 23 Electric plug 23a-23d electrode part 24 electrical connection terminals 25 holder 26 External connector 27 optical fiber plug 36 insertion holes 31, 33 Single head 32,34 constriction 38a, 38b insertion part 41 Method identification means 42 Insert identification means 43 Optical Fiber Insulation Identification Pattern 44 Insulation identification pattern for electrical plugs 47 identification terminal 71 Outer terminal 72 Inner terminal 81-83 resistance element 84 mounting board 85 Drawer surface 86 end face 87 Drawer 88 Bend S1 contact position S2 Non-contact position Vref, Ai power supply

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Taka ▼ Takashi Oka 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Koichi Kuwamura 22-22 Nagaike-cho, Abeno-ku, Osaka, Osaka No. Sharp Corporation (56) Reference JP-A-1-183225 (JP, A) JP-A-5-242930 (JP, A) JP-A-6-89561 (JP, A) JP-A-5-258544 ( JP, A) Actual development 2-27686 (JP, U) Actual development 1-12387 (JP, U) Actual development 5-81970 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 13/641 G02B 6/36 H01R 24/02

Claims (7)

(57) [Claims] 1. An electrode section for detecting the type of plug
Transmits analog signals that have insulation parts at predetermined positions
A first electrical plug for the first electrical plug
Has substantially the same shape as the first electric plug
Insulate the electrode section to detect the plug type at different positions.
A selectively insertable transmission device and a second electrical plug for transmitting digital signals having an edge, the plug being inserted, either one first electrical plug or a second electrical plug Check the plug type
Transmission apparatus comprising: a identifying means for identifying, based on the electrode portion and an insulating portion for output. 2. The identifying means identifies the electrode portion of the first electric plug and the insulating portion of the second electric plug so that the inserted plug is the first electric plug or the second electric plug.
2. The transmission device according to claim 1, wherein it is identified which of the electric plugs is the electric plug. 3. An electrode section for detecting the type of plug
Transmits analog signals that have insulation parts at predetermined positions
First electric plug for operating the first electric plug
Has substantially the same shape as the first electric plug
Insulate the electrode section to detect the plug type at different positions.
A second electrical plug for transmitting a digital signal having an edge
And the first electrical plug and the second electrical plug
The first electrical plug and
And the seed of the plug in a position different from the second electric plug.
Optical digital signal transmission with insulation for detecting
A transmission device for both photoelectric and selective insertion of an optical fiber plug to be transmitted , wherein whether the inserted plug is an optical fiber plug, a first electric plug or a second electric plug,
Based on the electrode part and the insulating part for detecting the kind of the plug.
Transmission apparatus comprising: a identification means for identifying by Zui. 4. The identifying means identifies the electrode portion of the first electric plug and the insulating portion of the second electric plug so that the inserted plug is the first electric plug or the second electric plug.
Of the second electric plug and by identifying the electrode portion of the second electric plug and the insulating portion of the optical fiber plug, it is possible to identify whether it is the second electric plug or the optical fiber plug. Characterized by
The transmission device according to claim 3 . 5. A second electrical plug for use in <br/> transmission apparatus according to any one of claims 1 to 4, said insulating portion is provided in the plug base A characteristic electric plug. 6. The transmission shared by photoelectric according to claim 3 or 4.
A the optical fiber plug for use in feeder, the optical fiber plug, the first electrical plug and
Optical fiber plug, wherein an insulating unit used in the identification of the second electrical plug is provided. 7. A device comprising the transmission device according to claim 1, the electrical plug according to claim 5, and / or the optical fiber plug according to claim 6 .