JP3271115B2 - Conversion adapter for digital I / F cable - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital I / F cable conversion adapter used to enable connection between different types of digital interface (I / F) connectors.

[0002]

2. Description of the Related Art In a home digital video DV system standardized by the HD Digital VCR Council, a digital I / F connector for exchanging digital data on a tape as a digital signal, a so-called "DV terminal", is used. Used. This is based on the IEEE 1394 high-speed serial bus standard (hereinafter simply referred to as the IEEE 1394 standard), and is expected to be connected to a computer device or the like in the future in addition to editing dubbing between DV system digital videos.

[0003]

However, at present,
The digital I / F connector conforming to the IEEE 1394 standard employs two types, a 6-pin standard terminal and a 4-pin DV terminal. The 6-pin standard terminal supports up to the connection of the power supply line. However, when used for a handy type product such as a portable video camera, there are many inconveniences in terms of the thickness of the cable and ease of handling. . Therefore, in addition to the standard 6-pin terminal, a 4-pin DV terminal except for the support for the connection of the power supply line is adopted in consideration of easy handling and miniaturization by connecting a flexible cable.

Therefore, when connecting to a computer device or the like, the connector provided on the device to be connected depends on whether the connector is a 6-pin connector or a 4-pin connector. And (1) a DV cable for connecting DV terminals having 4 pins (hereinafter referred to as 4-pin DV terminals), and (2) a DV cable for connecting standard terminals having 6 pins (hereinafter referred to as 6-pin standard terminals). It is necessary to prepare a total of three types of connection cables, that is, a standard cable to be used, and (3) a conversion cable for connecting a 4-pin DV terminal and a 6-pin standard terminal, and use them properly.

FIGS. 11 and 12 show examples of the conventional connection cable. FIG. 11 is a diagram showing a connection cable for connecting the four-pin DV terminals to each other.
Has a structure in which the tape 71 is wound around the whole of the first signal pair wire 67 and the second signal pair wire 69, and the whole is further covered with a shield mesh, and a 4-pin DV terminal is provided at both ends of the cable body. 73 and 74 are provided.

FIG. 12 is a view showing a connection cable for connecting a 4-pin DV terminal and a 6-pin standard terminal. One end of a cable body 76 having the same structure as the cable body 65 of FIG. A pin DV terminal 73 is provided, and a 6-pin standard terminal 78 is provided at the other end.

Another type of connection cable is a connection cable (reference numeral 80 in FIG. 13) having 6-pin standard terminals connected to both ends of the cable main body and also having a power pair wire. FIG. 13 shows these three types of connection cables 65, 76,
An example is shown in which a system is constructed by connecting a VTR, a TV personal computer, a video camera, a video printer, and the like using the 80.

However, preparing such a plurality of types of connection cables is uneconomical for the user, and also increases the manufacturing cost of the connection cables. Depending on the relationship with the newly purchased device, the existing connection cable may be wasted, or only devices with a connector that can be used with the existing connection cable may be selected for purchase. In other words, there is a problem that the range of selection of a newly purchased device is narrowed.

Therefore, the present invention provides a 4-pin DV terminal by using only one type of connection cable, either a DV cable for connecting 4-pin DV terminals or a standard cable for connecting 6-pin standard terminals. It is an object of the present invention to provide a conversion adapter for a digital I / F cable that can freely construct a system in which a mixed device and a device having a 6-pin standard terminal are mixed.

[0010]

Means for Solving the Problems To solve the above problems, a digital I / F cable conversion adapter of the present invention is configured as follows. (1) A 4-pin DV socket is provided at one end of the adapter body, and a 6-pin standard plug is provided at the other end, and a signal line passing through the 4-pin DV socket is left inside the adapter body. The respective pins were appropriately connected so as to form a signal line passing through the 6-pin standard plug section.

(2) A 6-pin standard socket portion is provided at one end of the adapter body, and a 4-pin DV plug portion is provided at the other end side. A signal passing through the 6-pin standard socket portion inside the adapter body is provided. Line is the 4 pin D
The pins were appropriately connected to each other so as to form a signal line passing through the V plug portion. (3) A 4-pin DV socket on one end of the adapter body
And a 6-pin standard plug on the other end.
Inside the adapter body, the 4-pin DV socket
Signal line passing through the 6-pin standard plug
Connect each pin appropriately so that the signal line passes
And the base of the 4-pin DV socket and the 6-pin
One pin of the standard plug was connected. (4) 6-pin standard socket on one end of the adapter body
And a 4-pin DV plug on the other end.
The 6-pin standard socket inside the adapter body
Signal line passing through the 4 pin DV plug section
Connect each pin appropriately so that the signal line passes
And one pin of the 6-pin standard socket section and the
The base of the 4-pin DV plug was connected.

The digital I / F of the present invention having such a configuration
According to the cable conversion adapter, when constructing a system in which a device having a 4-pin DV terminal and a device having a 6-pin standard terminal coexist, a user who does not need a power line can use a 4-pin DV terminal plug. and DV cable having may be prepared conversion adapter having a 4-pin DV socket part and 6-pin standard plug portion of the (1), also the user who mainly uses the system that requires the power line, 6-pin A standard cable having a standard plug of
The conversion adapter having the 6-pin standard socket section and the 4-pin DV plug section described in (2) above may be prepared, so that the system can be freely constructed without providing any kind of connection cables.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 through the digital I / F cable adapter 10 shown in FIG. 3, 4 Pinpura
And a connection type, for example , between a 4-pin DV plug and a 6-pin standard socket (hereinafter referred to as type A).
It has a V socket portion 20 and a 6-pin standard plug portion 30 on the other end surface 13 side.

The 4-pin DV socket 20 is a 4-pin DV socket.
This is a part for inserting a 4-pin DV plug 2 provided at an end of a digital I / F cable (DV cable) 1 for connecting terminals to perform electrical connection, as shown in FIG. 3B. A fitting recess 21 for receiving the 4-pin DV plug 2 of the DV cable 1, a fitting protrusion 22 protruding coaxially at the center of the fitting recess 21, and a side wall of the fitting protrusion 22. And four contacts 23 for electrical connection with the 4-pin DV plug 2. The guide groove 3 provided on the side wall of the 4-pin DV plug 2 is provided on the side wall of the fitting recess 21.
Is formed. A base 25 is provided at the mouth of the fitting recess 21.

The 6-pin standard plug section 30 is a section for making an electrical connection to a device having a 6-pin standard terminal, and as shown in FIG. A mating concave portion 31 that mates with a mating convex portion (male connector) of the pin standard terminal, and an electric connection between the male connector of the device and the male connector provided on the inner side wall of the mating concave portion 31. It has six contacts 32 to be performed, and a base 33 surrounding the fitting recess 31.

On the other hand, the digital I / O shown in FIGS.
The F-cable conversion adapter 40 is a type for connecting between a 6-pin standard plug and a 4-pin DV socket (hereinafter referred to as type B), and a 6-pin standard socket portion is provided on one end surface 42 of the adapter body 41. With 50,
The other end face 43 has a 4-pin DV plug section 60.

The 6-pin standard socket section 50 receives a 6-pin standard plug (male connector) 8 provided at the end of a digital I / F cable (standard cable) 7 for connecting 6-pin standard terminals. As shown in FIG. 6B, a fitting recess 51 for receiving the 6-pin standard plug 8 of the standard cable 7 and a coaxial projection at the center of the fitting recess 51 are provided. A fitted projection 52 provided;
It has six contacts 53 provided on both side walls of the fitting projection 52 for making electrical connection with the 6-pin standard plug 8.
A base 55 is provided at the mouth of the fitting recess 51.

The 4-pin standard plug section 60 has a 4-pin D
This is a part for making an electrical connection to a device having a V terminal, and as shown in FIG. 6A, a fitting protrusion (male connector) of a 4-pin DV terminal provided in the device. A fitting recess 61 to be fitted, four contacts 62 provided corresponding to the inner side wall of the fitting recess 61 and electrically connecting to the male connector of the device, and the fitting recess 61 And a base 63 surrounding the base. Note that a guide groove 64 is formed on the side wall of the fitting recess 61 so as to engage with a ridge (not shown) of a 4-pin DV terminal provided in the above-described device.

FIG. 7 shows the internal connection state of the digital I / F cable conversion adapter 10 of the type A (shown in FIGS. 1 to 3), and FIG. 8 shows the type B of the type I (FIGS. 4 to 6). 2) shows the state of the internal connection of the digital I / F cable conversion adapter 40 shown in FIG. 4 pin DV each
FIG. 5 is a connection diagram of the socket section 20, the 6-pin standard plug section 30, the 6-pin standard socket section 50, and the 4-pin DV plug section 60 as viewed from the outer end face.

As can be seen from FIGS. 7 and 8, the 4-pin D
The four pins of the V socket part 20 and the four-pin DV plug part 60, that is, the pin numbers “1”, “2”, “3”, “4”
Are the pin numbers “6”, “5”, “4”, and “6” of the 6 pins of the 6-pin standard plug section 30 and the 6-pin standard socket section 50.
"3", and signals TPA,
TPA *, TPB, and TPB * flow.

That is, inside the conversion adapter 10, the signal line passing through the 4-pin DV socket section 20 is connected straight as it is to the signal line passing through the 6-pin standard plug section 30. Also, inside the conversion adapter 40, the signal line passing through the 6-pin standard socket section 50 is connected straight as it is to the signal line passing through the 4-pin DV plug section 60.

The pin number "1" of the 6-pin standard plug section 30 and the 6-pin standard socket section 50 are in a floating state, and the pin number "2" is the 4-pin DV socket section 2.
0 and the base 63 of the 4-pin DV plug section 60.

The DV cable 1 differs from the standard cable 7 in the following points a, b, and c. a: Power pair lines are omitted, and only two signal pair lines are provided. b: Signal pair line uses AWG32 line. c: There is no shield of the signal pair wire, and it is shielded entirely. Therefore, when the type A conversion adapter 10 or the type B conversion adapter 40 is used, power cannot be supplied, but digital signals can be transmitted and received without any problem.

FIG. 9 and FIG.
An example of using 0, 40 is shown. FIG. 9 shows an example in which the conversion adapter 10 is used. In the figure, “device 1”, “device 2” and “device 3” are devices having a 4-pin DV terminal, and the remaining “device 4” is 6-pin. This device has a standard terminal. Between "Device 1" and "Device 2" and "Device 2"
And the "device 3", that is, between devices having a 4-pin DV terminal are directly connected by a DV cable 1 having a 4-pin DV terminal at both ends.

The DV cable 1 is also connected between the "device 3" and the "device 4", that is, the device 3 having a 4-pin DV terminal and the device 4 having a 6-pin standard terminal. In this case, since the types are different from each other, the connector (terminal) of the “device 4” and the 4-pin DV
A conversion adapter 10 of type A is interposed between the plug 2 and the plug 2. That is, the 6-pin standard plug section 30 of the conversion adapter 10 is inserted into the 6-pin standard terminal of the “device 4”,
The 4-pin DV plug 2 of the DV cable 1 is inserted into the 4-pin DV socket section 20 of the conversion adapter 10.

As a result, the user can check all “device 1”
To "device 4" can be connected by using only one kind of the same DV cable 1 for all devices. In short, the user who does not need the power supply system unifies the DV cable 1 as shown in FIG.
Only for devices with 6-pin standard terminals such as
What is necessary is just to connect via the conversion adapter 10 of type A.

FIG. 10 shows an example in which the conversion adapter 40 is used. In FIG. 10, "Equipment 1", "Equipment 2" and "Equipment 4" are equipment having a 6-pin standard terminal, and the remaining "Equipment 3". Is a device having a 4-pin DV terminal. The "device 1" and the "device 2", that is, the devices having the 6-pin standard terminals are directly connected by the standard cable 7 having the 6-pin standard terminals at both ends. Between "device 2" and "device 3" and between "device 4" and "device 3", ie, devices 2 and 4 having a 6-pin standard terminal and device 3 having a 4-pin DV terminal; Are connected by the standard cable 7 in the same manner. In this case, since the types are different from each other, there is a type B between the connector (terminal) of the “device 3” and the 6-pin standard plug 8 of the standard cable 7. The conversion adapter 40 is interposed. That is, the 4-pin DV plug section 6 of the conversion adapter 40 is connected to the 4-pin DV terminal of the “device 3”.
0 is inserted, and the 6-pin standard plug 8 of the standard cable 7 is inserted into the 6-pin standard socket section 50 of the conversion adapter 40.

As a result, the user can check all “device 1”
In order to connect between the "devices 4" to "device 4", all the devices can be connected by using only one kind of the same standard cable 7. In short, a user who is thinking about a system that needs a power supply now and in the future only needs to prepare one kind of standard cable 7 and several conversion adapters 40, and it is necessary to prepare a 4-pin DV such as the “device 3”. What is necessary is just to connect via the type B conversion adapter 40 only to the apparatus provided with a terminal.

By using the digital I / F cable conversion adapter 10 or 40 as described above, a digital interface terminal of a device to be connected, such as a VTR, a TV personal computer, a video camera, a video printer, or a hard disk, can be connected to an existing connection cable. Even if the terminal types do not match, all can be connected only with the same type of cable by interposing the conversion adapter 10 or 40 between the cable terminal and the terminal of the device.

Therefore, a user who mainly uses a system that does not require a power line mainly uses the DV cable 1 having a 4-pin DV terminal and the type A conversion adapter 10, and a system that requires a power line. User
What is necessary is just to prepare the standard cable 7 of the 6-pin standard terminal and the conversion adapter 40 of the type B, and it is not necessary to arrange many kinds of connection cables.

[0031]

As described above, according to the digital I of the present invention,
According to the / F cable conversion adapter, even if the terminal type of the existing connection cable does not match the digital interface terminal of the device to be connected, such as a VTR, TV personal computer, video camera, video printer, hard disk, etc., which constitutes the system. By interposing the conversion adapter of the present invention between the cable terminal and the terminal of the device, all the devices can be connected only by the same type of connection cable.

That is, a user who does not need a power supply line can use a DV cable having a 4-pin DV terminal plug and a conversion adapter having a type A 4-pin DV socket section and a 6-pin standard plug section of claim 1; A user who mainly uses a system requiring a power supply line may use a standard cable having a 6-pin standard terminal and a conversion adapter having a type B 6-pin standard socket section and a 4-pin DV plug section according to claim 2. Therefore, there is no need to provide various types of connection cables.

[Brief description of the drawings]

FIG. 1 is a diagram showing a type A digital I / F cable conversion adapter 10 and a DV cable 1 according to a first embodiment of the present invention.

FIG. 2 is a side view of the digital I / F cable conversion adapter 10;

3A and 3B are diagrams showing an end face side of a conversion adapter for digital I / F cable 10; FIG. 3A is a left end view of the conversion adapter 10 of FIG. 2; FIG. 3B is a conversion adapter of FIG. 1
0 is a right end view of FIG.

FIG. 4 is a diagram showing a type B digital I / F cable conversion adapter 40 and a DV cable 7 according to a second embodiment of the present invention.

FIG. 5 is a side view of the digital I / F cable conversion adapter 40;

6A and 6B are diagrams illustrating an end face side of the digital I / F cable conversion adapter 40. FIG. 6A is a left end view of the conversion adapter 40 of FIG. 5, and FIG. 6B is a conversion adapter of FIG. 4
0 is a right end view of FIG.

FIG. 7 is an internal connection diagram of the digital I / F cable conversion adapter 10;

FIG. 8 is an internal connection diagram of a digital I / F cable conversion adapter 40;

FIG. 9 is a diagram illustrating a connection example between devices using the digital I / F cable conversion adapter 10.

FIG. 10 is a conversion adapter 40 for a digital I / F cable.
It is a figure which shows the example of a connection between apparatuses using.

FIG. 11 shows a conventional DV for connecting between 4-pin DV terminals.
FIG. 6 is a view showing a cable 65.

FIG. 12 is a diagram showing a conventional conversion cable 76 for connecting a 4-pin DV terminal to a 6-pin standard terminal.

FIG. 13 is a diagram showing an example of connecting a 4-pin DV terminal and a 6-pin standard terminal between devices using a conventional conversion cable.

[Explanation of symbols]

1 ... Digital I / F cable (DV cable), 2 ...
... 4 pin DV plug, 3 ... guide groove, 7 ... digital I / F cable (standard cable), 8 ... 6 pin standard plug, 10 ... conversion adapter for digital I / F cable (type A), 11 …… Adapter body, 12, 13 ……
End face, 20: 4-pin DV socket portion, 21: Fitting concave portion, 22: Fitting convex portion, 23: Contact, 24 ... Protrusions, 25, 33, 55, 63 ... Base, 30 ... 6-pin standard plug part, 31 ... fitting recess, 32 ... contact, 4
0: Conversion adapter for digital I / F cable (Type B), 41: Adapter body, 42, 43: End face, 5
0 6-pin standard socket part, 51 fitting recess, 52
... fitting protrusion, 53 ... contact, 60 ... 4-pin DV plug part, 61 ... fitting recess, 62 ... contact, 64 ...
Guide groove, 65, 76 Cable body, 67 First
Signal pair wire, 69 second signal pair wire, 71... Tape, 73, 74... 4-pin DV terminal, 78... 6-pin standard terminal, 80.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 31/06

Claims (4)

(57) [Claims] 1. A 4-pin DV socket portion is provided at one end of an adapter body, and a 6-pin standard plug portion is provided at the other end side. A signal line passing through the 4-pin DV socket portion inside the adapter body. Wherein the respective pins are appropriately connected to each other so as to form a signal line passing through the 6-pin standard plug section as it is. 2. A 6-pin standard socket portion is provided at one end of the adapter body, and a 4-pin DV plug portion is provided at the other end side. A signal line passing through the 6-pin standard socket portion inside the adapter body. Wherein the respective pins are appropriately connected to each other so as to form a signal line passing through the 4-pin DV plug section as it is. 3. A 4-pin DV socket on one end of the adapter body.
And a 6-pin standard plug on the other end.
Provided, The 4-pin DV socket inside the adapter body
The signal line passing through the section is the same as the 6-pin standard plug section
Connect each pin appropriately so that the signal line passes through
And the base of the 4-pin DV socket and the 6-pin
Connected to one pin of standard plug Characterized by
Conversion adapter for digital I / F cable. 4. A 6-pin standard socket on one end of the adapter body.
And a 4-pin DV plug on the other end.
Provided, The 6-pin standard socket inside the adapter body
The signal line passing through the section is the same as the 4-pin DV plug section
Connect each pin appropriately so that the signal line passes through
And one pin of the 6-pin standard socket section and the
Connected to the base of 4-pin DV plug Characterized by
Conversion adapter for digital I / F cable.