CN201477585U

CN201477585U - Signal transmission device capable of singly outputting signals and relevant motherboard

Info

Publication number: CN201477585U
Application number: CN2009201554108U
Authority: CN
Inventors: 郭欣孟
Original assignee: Elitegroup Computer Systems Co Ltd
Current assignee: Elitegroup Computer Systems Co Ltd
Priority date: 2009-05-13
Filing date: 2009-05-13
Publication date: 2010-05-19
Anticipated expiration: 2019-05-13

Abstract

A signal transmission device is installed on a motherboard and electrically connected with a signal control unit and a display output unit on the motherboard, and the signal transmission device comprises a signal receiving part, a signal output part and a printing circuit connection part, wherein the signal receiving part is used for receiving signals transmitted from the signal control unit, the signal output part is used for singly outputting the signals to a display output interface, the printing circuit connection part is used for transferring the signals from the signal receiving part to the signal output part, that is to say, the signal transmission device can singly output signals and takes the place of a change-over integrated circuit device which outputs signals through the mode of choosing one from two, thereby reducing the manufacturing cost and the circuit rearrangement design which is caused when the design of the motherboard is simplified from signal switching output to signal single output.

Description

Signal transmitting apparatus and associated host plate thereof that can single output signal

Technical field

The utility model is about a kind of signal transmitting apparatus and associated host plate thereof, refers to a kind of signal transmitting apparatus and associated host plate thereof that can single output signal especially.

Background technology

Along with electronics technology and improvement of Manufacturing Technology, the function that personal computer can possess from strength to strength, as storage data, film is appreciated, burning CDs etc. also therefore, also apparent more complexity of the circuit arrangement of the required lift-launch of motherboard of integrated each zero element of computer-internal and variation, this also provides the user on the assembling computing machine more selection can be arranged simultaneously, for instance, generally speaking, at computer screen with on main frame is connected, common method is installed on the signal transmission socket that the graphics process adapter on the motherboard is provided for signal attachment plug that computer screen provided is inserted, and uses to make computer screen can be received from the picture signal that main frame transmits and show corresponding image.So when using configuration simultaneously to statistics have shown the motherboard of connectivity port, as dispose digital visual interface (Digital Visual Interface, DVI) connectivity port and graphics process adapter slot (high-speed peripheral element interconnection (Peripheral Component Interconnect-Express for example, during PCI-E) bus) motherboard, the user can have the selection of two kinds of assemblings, a kind of assembling mode as mentioned above, it is to utilize to be installed on transmission and the demonstration that signal transmission socket that the graphics process adapter on the graphics process adapter slot provided and the electric connection of the signal attachment plug of computer screen reach picture signal, and is another kind of then be that signal attachment plug with computer screen changes the numeral demonstration connectivity port on the insertion motherboard into.

Generally speaking; when disposing different signal input-output units on the motherboard; usually can dispose on the motherboard and switch the transmission path of integrated circuit (Switch IC) with control signal; this type of signal controlling transmission design is common in the prior art; for instance; in U.S. Pat 6; 874; exposure utilization switching integrated circuit is controlled the data transmission between the different device in 042; by U.S. Pat 6; 874; Fig. 3 in the 1st of 042 claim and the diagram that instructions provided as can be known, different signal transmission paths is to control by the switching integrated circuit that is disposed on the graphics process adapter between graphics process adapter and the computer peripheral devices.Similarly the circuit component design also often is applied to have simultaneously on the motherboard of numeral demonstration connectivity port and graphics process adapter slot; that is to say; above-mentioned motherboard can dispose usually and switch the transmission path of integrated circuit with the control chart image signal; see also Fig. 1; it is the synoptic diagram of prior art one motherboard 10; motherboard 10 includes signaling control unit 12, graphics process adapter slot 14, video interface connectivity port 16, and switches integrated circuit 18.Switch integrated circuit 18 and be electrically connected on signaling control unit 12, graphics process adapter slot 14 and video interface connectivity port 16 simultaneously, be electrically connected at when inserting the signal transmission socket that the graphics process adapter in the graphics process adapter slot 14 provided when switching signal attachment plug that integrated circuit 18 detects computer screen, switching integrated circuit 18 will will transfer to the graphics process adapter to carry out the successive image signal Processing via graphics process adapter slot 14 from signaling control unit 12 received picture signals; Otherwise, if switch signal attachment plug that integrated circuit 18 detects computer screen when being electrically connected at video interface connectivity port 16 on the motherboard 10, then switch integrated circuit 18 will with from the received image signal transmission of signaling control unit 12 to video interface connectivity port 16 to carry out the successive image signal Processing, so motherboard 10 can provide the more diversified assembling of user to select to reach the output effect of the automatic alternative of picture signal, to use by above-mentioned switching integrated circuit 18.

Yet, stress under the compact design trend at present electronic product, motherboard only must single output image signal design see more generally, meaning be on the motherboard configuration of signal output interface be from the above-mentioned design alteration that has video interface connectivity port and graphics process adapter slot simultaneously for only to have the video interface connectivity port or the design of graphics process adapter slot, use the manufacturing cost that reduces motherboard.From the above, only need at motherboard under the design of the single output function of picture signal, it is unnecessary to switch the real genus of being provided with of integrated circuit, not only can cause the rising of motherboard manufacturing cost, also can make simultaneously and occur complicated interlock circuit configuration on the motherboard, if and the configuration of removing the switching integrated circuit in the motherboard global design then can cause the configuration of motherboard integrated circuit to need redesign again, and then produces extra manufacturing and R﹠D costs.

Summary of the invention

Therefore, the utility model provides a kind of signal transmitting apparatus that can single output signal, to solve complicated circuit configuration in the prior art and the extra problem made from R﹠D costs.

The utility model provides a kind of signal transmitting apparatus that can single output signal, it is installed on the motherboard and is electrically connected at the signaling control unit on this motherboard and shows output interface, this signal transmitting apparatus includes signal receiving part, and it is used for being received from the signal that this signaling control unit transmits; The signal efferent, it is used for this signal of single output and shows output interface to this; And the P.e.c. connecting portion, it is electrically connected at this signal receiving part and this signal efferent, and this P.e.c. connecting portion is used for this signal is transferred to this signal efferent from this signal receiving part.

The utility model also provides a kind of motherboard that can single output signal, and it includes signaling control unit, and it is used for output signal; Show output interface, it is used for receiving this signal and exports this signal to display device; And signal transmitting apparatus, it is electrically connected at this signaling control unit and this demonstration output interface, and this signal transmitting apparatus includes signal receiving part, and it is used for being received from this signal that this signaling control unit transmits; The signal efferent, it is used for this signal of single output and shows output interface to this; And the P.e.c. connecting portion, it is electrically connected at this signal receiving part and this signal efferent, and this P.e.c. connecting portion is used for this signal is transferred to this signal efferent from this signal receiving part.

From the above, motherboard of the present utility model only must be installed on signal transmitting apparatus and originally be used for installing the circuit that switches integrated circuit and connect the place, the purpose of the single output of signal be can under the situation of the circuit arrangement that must not redesign the respective signal transmitting device, finish like this, the elasticity of lifting motherboard application and the compatibility of circuit component used.Thus, not only can save and switch the element cost that integrated circuit brought, also can reduce when motherboard switches the circuit that is produced when the output design simplification is the single output design of signal from signal reconfiguring design and manufacturing cost simultaneously widely.

The beneficial effects of the utility model are to provide a kind of signal transmitting apparatus that can single output signal, to solve complicated circuit configuration in the prior art and the extra problem made from R﹠D costs.

Description of drawings

Fig. 1 is the synoptic diagram of prior art one motherboard.

Fig. 2 is the functional block diagram of the utility model one motherboard.

Fig. 3 is the element exploded perspective view of Fig. 2 P.e.c. connecting portion.

Fig. 4 is the synoptic diagram that numeral shows the connectivity port for Fig. 2 preferred embodiment shows output interface.

Fig. 5 is the circuit connection diagram of Fig. 4 signal transmitting apparatus.

Fig. 6 shows that for another embodiment of Fig. 2 output interface is the synoptic diagram of graphics process adapter slot.

Fig. 7 is the upward view of Fig. 2 signal transmitting apparatus.

[main element label declaration]

10,50 motherboards, 12,52 signaling control units

14 graphics process adapter slot 16 video interface connectivity ports

18 switch integrated circuit 54 shows output interface

56 signal transmitting apparatus, 58 display device

60 signal receiving parts, 62 signal efferents

64 P.e.c. connecting portions, 66 bearing substrates

68 first signal transport layers, 70 secondary signal transport layers

72 ground planes, 74 bus planes

76,78 insulation courses, 80 pins

Embodiment

See also Fig. 2, it is the functional block diagram of the utility model one motherboard 50.Motherboard 50 includes signaling control unit 52, shows output interface 54 and signal transmitting apparatus 56.Signaling control unit 52 is used for output signal, this signal can preferably be a picture signal, and in embodiment of the present utility model, signaling control unit 52 can be the general common signal processor that is installed on the motherboard, as figure and memory controlling hub (Graphics Memory Controller Hub, GMCH).Show that output interface 54 is used for receiving and exporting this signal to display device 58, use and make display device 58 show corresponding image according to this signal, mentioned herein and display device 58 be the general common display device that is connected in main frame, as LCD screen etc.Show that output interface 54 can be numeral and shows the connectivity port, as digital video interface connectivity port, HDMI (High Definition Multimedia Interface) (High Definition MultimediaInterface, HDMI) connectivity port etc.; Or can be graphics process adapter slot, as high-speed peripheral element interconnection bus etc., decide as for selecting for use which kind of connectivity port form to look closely the actual manufacturing demand of motherboard.Then, signal transmitting apparatus 56 is electrically connected at signaling control unit 52 and shows output interface 54, use and carry out signaling control unit 52 and show that the signal between the output interface 54 transmits, signal transmitting apparatus 56 includes signal receiving part 60, signal efferent 62 and P.e.c. connecting portion 64.Signal receiving part 60 is used for being received from this signal that signaling control unit 52 is transmitted, and signal efferent 62 then is to be used for this signal of single output to showing output interface 54.In addition, P.e.c. connecting portion 64 is electrically connected at signal receiving part 60 and signal efferent 62, and P.e.c. connecting portion 64 is used for this signal is transferred to signal efferent 62 from signal acceptance division 60.

It below is the structural arrangements of introducing P.e.c. connecting portion 64.See also Fig. 3, it is the element exploded perspective view of Fig. 2 P.e.c. connecting portion 64.P.e.c. connecting portion 64 includes bearing substrate 66, the first signal transport layer 68, secondary signal transport layer 70, ground plane 72, bus plane 74 and insulation course 76,78, in this embodiment, P.e.c. connecting portion 64 can be 4 layer printed circuit boards, the integral thickness of this 4 layer printed circuit board is about 59 Mills (mil), the impedance of this 4 layer printed circuit board is about 85 ohm (Ω), and the thickness of bearing substrate 66 is about 47 Mills (mil).In addition, it is a side that is arranged at bearing substrate 66 for the first signal transport layer 68, secondary signal transport layer 70 then is the opposite side that is arranged at the bearing substrate 66 relative first signal transport layers 68, and the first signal transport layer 68 and secondary signal transport layer 70 are used for carrying out the transmission of this signal.Ground plane 72 is to be arranged between the bearing substrate 66 and the first signal transport layer 68, and ground plane 72 is used for ground connection.Bus plane 74 is to be arranged between bearing substrate 66 and the secondary signal transport layer 70, required electric power when bus plane 74 is used to provide the running of this 4 layer printed circuit board.At last, 76,78 of insulation courses are to be arranged between the first signal transport layer 68 and the ground plane 72 respectively and between secondary signal transport layer 70 and the bus plane 74.Under the condition of above-mentioned physical parameter that sets and element layer configuration, this signal that is transmitted from signaling control unit 52 can be in this 4 layer printed circuit board the first signal transport layer 68 and secondary signal transport layer 70 obtain preferable laser propagation effect, the thickness of right this 4 layer printed circuit board and the parameter setting of impedance and the configuration of inner member layer can not be restricted to the described embodiments, and it also can be adjusted to some extent according to different circuit arrangement demands.

Then be to serve as that numeral shows that connectivity port and the signal that is transmitted are that the transport stream signal journey that the prerequisite of picture signal is got off at motherboard 50 is described in detail with the demonstration output interface on the motherboard 50 54, please consult Fig. 2 simultaneously, Fig. 3, Fig. 4 and Fig. 5, Fig. 4 is the synoptic diagram that numeral shows the connectivity port for Fig. 2 preferred embodiment shows output interface 54, Fig. 5 then is the circuit connection diagram of Fig. 2 signal transmitting apparatus 56, when signaling control unit 52 produces picture signal, at first signaling control unit 52 can by with signal transmitting apparatus 56 between circuit be connected (as shown in Figure 5) and with the signal receiving part 60 of this image signal transmission to signal transmitting apparatus 56, then signal receiving part 60 will be with this image signal transmission to P.e.c. connecting portion 64, from the above, P.e.c. connecting portion 64 can utilize inner signal transport layer to carry out the transmission of this picture signal, that is to say, P.e.c. connecting portion 64 can utilize the first signal transport layer 68 or secondary signal transport layer 70 these picture signals of transmission to signal efferent 62, at this moment, because the electric connection of signal efferent 62 and demonstration output interface 54 is unique transmission path of this picture signal, so will exporting to via signal efferent 62 singlely, this picture signal shows output interface 54, showing output interface 54 these picture signals of output to display device 58 at last, display device 58 can show corresponding image according to this picture signal.

In like manner, if the demonstration output interface 54 on the motherboard 50 is a graphics process adapter slot, see also Fig. 6, it shows that for another embodiment of Fig. 2 output interface 54 is the synoptic diagram of graphics process adapter slot, the picture signal that signaling control unit 52 produced also can be transmitted this picture signal to showing output interface 54 by signal transmitting apparatus 56 singlely, export this picture signal to display device 58 by being installed on the graphics process adapter that shows on the output interface 54 again, and then make display device 58 can show corresponding image, because its transport stream signal journey is identical with above-mentioned example, so repeat no more in this.56 applicable directions of above-mentioned signal transmitting apparatus can be not limited to image signal transmission, that is to say, motherboard 50 can be by signal transmitting apparatus 56 respectively with signaling control unit 52 and show that the electric connection design of output interface 54 reach the effect of single output signal with different type transmission, as the transmission of motherboard 50 internal control signals etc.

In addition, see also Fig. 7, it is the upward view of Fig. 2 signal transmitting apparatus 56, be to dispose a plurality of pins 80 on the first signal transport layer 68, above-mentioned signal receiving part 60 and signal efferent 62 all include at least one pin 80, meaning is that signal receiving part 60 and signal efferent 62 can utilize its pairing pin 80 to carry out the reception and the output of signal respectively, it should be noted that, each pin 80 is that the mode of edge specific range with the distance first signal transport layer 68 is arranged on the first signal transport layer 68, thus, even if the wrong problem of cutting path control occurs when carrying out the relevant cutting flow process of signal transmitting apparatus 56, signal transmitting apparatus 56 of the present utility model also can reduce the probability that pin 80 is subjected to cutting damage widely because of the configuration design of above-mentioned pin and signal transport layer.

In sum, motherboard provided by the utility model can be by being electrically connected at signaling control unit and showing that the signal transmitting apparatus between the output interface reaches the effect of single transmission signals, that is to say, when motherboard only uses one to show output interface as the single output interface of the signal that it transmitted, signal transmitting apparatus provided by the utility model just can be used for substituting in the above-mentioned prior art for reach signal alternative output effect the switching integrated circuit that must use, and because the specification of signal transmitting apparatus of the present utility model and inner circuit arrangement can be designed to similar to above-mentioned switching integrated circuit, therefore, motherboard only must be installed on signal transmitting apparatus and originally be used for installing the circuit place of connecting of switching integrated circuit and get final product, in other words, motherboard just can be finished the purpose of the single output of signal under the situation of the circuit arrangement that must not redesign the respective signal transmitting device, use the elasticity of lifting motherboard application and the compatibility of circuit component.Thus, compared to prior art, not only can save and switch the element cost that integrated circuit brought, also can reduce when motherboard switches the circuit that is produced when the output design simplification is the single output design of signal from signal reconfiguring design and manufacturing cost simultaneously widely.

The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim scope change and modify, and all should belong to covering scope of the present utility model.

Claims

One kind can single output signal signal transmitting apparatus, it is installed on the motherboard and is electrically connected at the signaling control unit on this motherboard and shows output interface, it is characterized in that this signal transmitting apparatus includes:

Signal receiving part, it is used for being received from the signal that this signaling control unit transmits;

The signal efferent, it is used for this signal of single output and shows output interface to this; And

The P.e.c. connecting portion, it is electrically connected at this signal receiving part and this signal efferent, and this P.e.c. connecting portion is used for this signal is transferred to this signal efferent from this signal receiving part.
2. signal transmitting apparatus according to claim 1 is characterized in that, wherein this P.e.c. connecting portion is 4 layer printed circuit boards, and the thickness of this 4 layer printed circuit board is about 59 Mills.
3. signal transmitting apparatus according to claim 1 is characterized in that, wherein this P.e.c. connecting portion includes:

Bearing substrate;

The first signal transport layer, it is set at first side of this bearing substrate;

The secondary signal transport layer, it is set at second side of this bearing substrate;

Ground plane, it is set between this bearing substrate and this first signal transport layer, and this ground plane is used for ground connection; And

Bus plane, it is set between this bearing substrate and this secondary signal transport layer, and this bus plane is used to provide electric power.
4. signal transmitting apparatus according to claim 3, it is characterized in that, wherein this P.e.c. connecting portion also comprises two insulation courses, and it is arranged between this first signal transport layer and this ground plane respectively and between this secondary signal transport layer and this bus plane.
5. signal transmitting apparatus according to claim 3, it is characterized in that, wherein this signal receiving part and this signal efferent all include at least one pin, and this pin is arranged on this first signal transport layer in the mode apart from the edge specific range of this first signal transport layer.
One kind can single output signal motherboard, it is characterized in that it includes:

Signaling control unit, it is used for output signal;

Show output interface, it is used for receiving this signal and exports this signal to display device; And

Signal transmitting apparatus, it is electrically connected at this signaling control unit and this demonstration output interface, and this signal transmitting apparatus includes:

Signal receiving part, it is used for being received from this signal that this signaling control unit transmits;

The signal efferent, it is used for this signal of single output and shows output interface to this; And

The P.e.c. connecting portion, it is electrically connected at this signal receiving part and this signal efferent, and this P.e.c. connecting portion is used for this signal is transferred to this signal efferent from this signal receiving part.
7. motherboard according to claim 6, it is characterized in that, wherein this signaling control unit is figure and memory controlling hub, and should show wherein that output interface was that numeral shows connectivity port or digital visual interface connectivity port or graphics adaptation card slot or high-speed peripheral element interconnection bus.
8. motherboard according to claim 6 is characterized in that, wherein this P.e.c. connecting portion is 4 layer printed circuit boards, and the thickness of this 4 layer printed circuit board is about 59 Mills.
9. motherboard according to claim 6 is characterized in that, wherein this P.e.c. connecting portion includes:

Bearing substrate;

The first signal transport layer, it is set at first side of this bearing substrate;

The secondary signal transport layer, it is set at second side of this bearing substrate;

Ground plane, it is set between this bearing substrate and this first signal transport layer, and this ground plane is used for ground connection; And

Bus plane, it is set between this bearing substrate and this secondary signal transport layer, and this bus plane is used to provide electric power.
10. motherboard according to claim 9 is characterized in that, wherein this P.e.c. connecting portion also comprises two insulation courses, and it is arranged between this first signal transport layer and this ground plane respectively and between this secondary signal transport layer and this bus plane.
11. motherboard according to claim 9, it is characterized in that, wherein this signal receiving part and this signal efferent all include at least one pin, and this pin is arranged on this first signal transport layer in the mode apart from the edge specific range of this first signal transport layer.