CN201479149U - Multimedia network distributed processor - Google Patents

Abstract

The utility model relates to a multimedia network distributor processor; wherein the outer end of a case is provided with a plurality of connectors, a circuit board is provided in the case and is connected with a plurality of matching circuits in radial arrangement correspond to the connectors of the case, the matching circuit comprises an attenuation circuit with micro-strip lines, and the matching circuits are matched with the circuit board. Therefore, when the connectors are connected with coaxial cable, several televisions or different digital multimedia devices, in upload and download of different signals, the multimedia network distributor processor can attain flatness with better frequency width and attain wider frequency width, the connecting networks of different terminals can obtain balance signal distribution, while the insertion loss can be adjusted according to requirement, to realize adjustable attenuation value, and the processor has better reflux loss characteristic, to realize stable signal distribution and resist interference, thereby improving practicality and convenience in application.

Description

The multi-media network distributor

Technical field

The utility model relates to a kind of multi-media network distributor, refer in particular to a kind of this distributor that makes when application is connected in a plurality of TVs or various different digital multimedia equipment in a large number, when bi-directional signal, when extending to higher-frequency, frequency has preferable flatness, and can adjust it on demand and insert loss, and the better return loss characteristic of tool, reach more stable signal allocation and anti-interference, and use the multi-media network distributor innovative design that more increases the practical effect characteristic its whole execution.

Background technology

Along with scientific and technological progress, digital product is the development trend of following home network in conjunction with computer and digital multimedia device, at present in the home-network linkups Developing Trend in Technology, except existing WLAN (Wireless Local Area Network, WLAN) outside the technology, also comprise hyperfrequency (UWB), power line network (HomePlug) and multimedia over Coax Alliance (Multimedia over CoaxAlliance, network technology MoCA) etc.; Wherein, the network technology of this multimedia over Coax Alliance be in January, 2004 by how tame cable TV manufacturer, satellite television manufacturer, the network equipment vendor is total to the technology alliance of group, mainly be to actively promote to utilize the family expenses coaxial cable to link TV, digital multimedia device, to be used for bi-directional multi-medium file and application service, purpose is with phone, network, cable TV (CATV), satellite community antenna system (Satellite Master Antenna Television SystemSMATV) and WLAN (WLAN) etc., network technology by multimedia over Coax Alliance (MoCA) is incorporated into coaxial cable, to allow the common people more increase practical convenient effect characteristic on life is used.

Yet, above-mentioned multimedia over Coax Alliance (MoCA) though network technology can reach phone, network, cable TV (CATV), satellite community antenna system (Satellite Master AntennaTelevision System SMATV) and WLAN (WLAN) are incorporated into the expection effect of coaxial cable, but use discovery in its whole execution, various signal via the coaxial cable transmission, behind a plurality of TVs or various different digital multimedia equipment that are connected on input user's the multimedia wideband Wireless Router, its in the two-way signaling transmittance process when return path signal, can selectively decay to frequency, promptly its pad value is neither identical on different frequencies, the flatness of its frequency when extending to higher frequency is not good, can't have stable signal allocation to reach is interfered easily, especially more at occupants of building, connect numerous TV and the various different digital multimedia equipments of number of users, its jitter and be subjected to disturbance state more obvious, cause to use and go up inconvenience greatly, cause it still to have great room for improvement in integral body.

The utility model content

Therefore, in view of this inventor designs and develops and the actual fabrication experience according to the abundant of these relevant industries for many years, is studied improvement at existing structure and disappearance, provides a kind of multi-media network distributor in the hope of reaching the purpose of better practical value.

Multi-media network distributor of the present utility model, it is to be provided with a plurality of splicing ears, inside in the housing outer end then to be provided with circuit board, the splicing ear of corresponding housing is radial a plurality of match circuits that are connected with on described circuit board, described match circuit is that attenuator circuit collocation microstrip line is formed, and makes each match circuit be suitable coupling on circuit board; Therefore, make after making splicing ear connect coaxial cable and a plurality of TV or various different digital multimedia equipment, though be upload or under be loaded in when transmitting various signal, it all can obtain the flatness of preferable frequency range and extend wideer frequency range, the mutual signal of connected network between each use side obtains mean allocation, and can adjust its insertion loss (Insertion Loss) on demand is that pad value is adjustable, and better return loss (Return Loss) characteristic of tool, and reach more stable signal allocation and anti-interference, and can its whole implement to use more increase practical convenience person.

Description of drawings

Fig. 1 is a three-dimensional appearance structural representation of the present utility model;

Fig. 2 is a circuit board arrangement architecture schematic diagram of the present utility model;

Fig. 3 is a circuit diagram of the present utility model;

Fig. 4 is another embodiment circuit diagram of the present utility model;

Fig. 5 is an another embodiment three-dimensional appearance structural representation of the present utility model;

Fig. 6 is connected the performance diagram that is presented for of the present utility model by one (Rm1) splicing ear with its five (Rm5) splicing ear;

Fig. 7 is connected the performance diagram that is presented for of the present utility model by its three (Rm3) splicing ear with its four (Rm4) splicing ear;

Fig. 8 is connected the performance diagram that presented by its three (Rm3) splicing ear with its eight (Rm8) splicing ear for of the present utility model.

Drawing reference numeral

1 housing, 11 splicing ears

2 circuit boards, 21 match circuits

211 attenuator circuits, 2,111 first resistance

2,112 second resistance 2113 the 3rd resistance

212 microstrip lines, 22 Centroids

Embodiment

For technology contents, purpose that the utility model is used and the effect reached thereof have more complete and clearly disclose, now being described in detail as follows, and the accompanying drawing that please discloses in conjunction with consulting:

At first, see also Fig. 1 three-dimensional appearance structural representation of the present utility model and Fig. 2 circuit board arrangement architecture of the present utility model schematic diagram, the utility model is to be provided with a housing 1, be provided with a plurality of splicing ears 11 in this housing 1 outer end, and in this housing 1, being provided with circuit board 2, the splicing ear 11 of corresponding housing 1 is radial a plurality of match circuits 21 that are connected with on this circuit board 2; Wherein:

This match circuit 21 is made up of attenuator circuit 211 collocation microstrip lines 212, this attenuator circuit 211 then is in first of two horizontally sets, two resistance 2111, the 3rd resistance 2113 in parallel forms the T type attenuator circuit 211 (please in conjunction with consulting shown in Fig. 3 circuit diagram of the present utility model) of T type shape between 2112, or make this attenuator circuit 211 be in two upright be provided with first, two resistance 2111, connect the π type attenuator circuit (please in conjunction with consulting shown in Fig. 4 another embodiment circuit diagram of the present utility model) that the 3rd resistance 2113 forms π type shape between 2112, and make these match circuit 21 1 ends be connected with splicing ear 11 on the housing 1, the other end then is connected to Centroid 22 places of circuit board 2 with other match circuits 21, make each match circuit 21 be suitable coupling on circuit board 2.

And this housing 1 can be the octangle design, and make each splicing ear 11 protrude and be arranged on this housing 1 upper surface (seeing also shown in Fig. 1 three-dimensional appearance structural representation of the present utility model), and this housing 1 also can be rectangular-shaped design, is arranged on this housing 1 outside end face (seeing also shown in Fig. 5 another embodiment three-dimensional appearance structural representation of the present utility model) and make each splicing ear 11 protrude.

Thus, make the utility model after splicing ear 11 connects coaxial cable and a plurality of TV or various different digital multimedia equipment, it is by the measured characteristics of signals of each splicing ear 11, detect by radio frequency network analyzer (RF Network Analyzer), can consult that Fig. 6 is of the present utility model to be connected shown in the performance diagram that is presented with its five (Rm5) splicing ear by one (Rm1) splicing ear, in this X axis of representing frequency range by 0.3MHz initial to 2000MHz by section, (in Mkr1 is 5MHz to Meas1,-20.885db, Mkr2 is 500MHz,-21.358db, MKr3 is 1000MHz,-21.929db, Mkr4 is 1500MHz,-22.146db, Mkr5 is 2000MHz,-22.494db), making it can adjust its insertion loss (Insertion Loss) on demand is that pad value is adjustable, no matter by one (Rm1) splicing ear input signal or by its five (Rm5) splicing ear input signal, when reaching bi-directional signal, it is very smooth that this curve characteristic all can keep, and representative still has quite good curve characteristic when high frequency, it can have more stable signal allocation and noiseproof feature when bi-directional signal; (in Mkr1 is 5MHz in Meas2,-20.022db, Mkr2 are 500MHz ,-23.612db, MKr3 is 1000MHz,-28.855db, Mkr4 are 1500MHz ,-18.808db, Mkr5 is 2000MHz,-21.363db), demonstrate each Mkr point all to reach-below the 18db, represent the utility model when bi-directional signal, also to have splendid return loss (Return Loss) characteristic.

Consult again please that Fig. 7 is of the present utility model to be connected shown in the performance diagram that is presented with its four (Rm4) splicing ear by its three (Rm3) splicing ear, in this X axis of representing frequency range by 0.3MHz initial to 2000MHz by section, (in Mkr1 is 5MHz to Meas1,-20.887db, Mkr2 is 500MHz,-21.589db, MKr3 is 1000MHz,-22.361db, Mkr4 is 1500MHz,-22.435db, Mkr5 are 2000MHz ,-22.176db), suppose that its three (Rm3) splicing ear connects the coaxial cable input signal, all the other each splicing ears 11 promptly become each difference and connect port, for distribution to each user side, when with its four (Rm4) when splicing ear is done bi-directional signal, its curve is very smooth, representative still has quite good curve characteristic when high frequency, it can have more stable signal allocation and noiseproof feature when its three (Rm3) splicing ear and its four (Rm4) splicing ear bi-directional signal; (in Mkr1 is 5MHz in Meas2,-19.991db, Mkr2 are 500MHz ,-22.476db, MKr3 is 1000MHz,-41.014db, Mkr4 are 1500MHz ,-20.692db, Mkr5 is 2000MHz,-20.293db), demonstrate each Mkr point all to reach-below the 18db, represent the utility model when bi-directional signal, also to have splendid return loss (Return Loss) characteristic.

Consult again please that Fig. 8 is of the present utility model to be connected shown in the performance diagram that is presented with its eight (Rm8) splicing ear by its three (Rm3) splicing ear, in this X axis of representing frequency range by 0.3MHz initial to 2000MHz by section, (in Mkr1 is 5MHz to Meas1,-20.900db, Mkr2 is 500MHz,-21.418db, MKr3 is 1000MHz,-22.021db, Mkr4 are 1500MHz ,-22.283db, Mkr5 is 2000MHz,-22.693db), this its three (Rm3) splicing ear is all and connects the coaxial cable input signal, with its eight (Rm8) of being connected to user side when splicing ear is done bi-directional signal, this curve is also very smooth, representative still has quite good curve characteristic when high frequency, it can have more stable signal allocation and noiseproof feature when bi-directional signal; (in Mkr1 is 5MHz in Meas2,-19.991db, Mkr2 are 500MHz ,-22.476db, MKr3 is 1000MHz,-41.014db, Mkr4 are 1500MHz ,-20.692db, Mkr5 is 2000MHz,-20.293db), demonstrate each Mkr point all to reach-below the 18db, represent the utility model when two arbitrary splicing ear 11 bi-directional signal, also to have splendid return loss (Return Loss) characteristic.

Aforesaid embodiment or accompanying drawing and non-limiting structural form of the present utility model, the suitable variation or the modification of the those of ordinary skill in any affiliated technical field all should be considered as not breaking away from scope of patent protection of the present utility model.

By the above, the composition of the utility model structure with use implementation as can be known, the utility model is compared with existing structure, has following advantage:

1. the utility model is owing to be to be provided with a plurality of splicing ears on housing, this splicing ear then is connected with by attenuator circuit collocation microstrip line to be formed, and connect the match circuit that is radial setting in after suitably mating, intersecting on the circuit board, make after making splicing ear connect coaxial cable and a plurality of TV or various different digital multimedia equipment, it can obtain the flatness of preferable frequency range and extend wideer frequency range, the mutual signal of connected network between each use side obtains mean allocation, and can adjust its insertion loss (Insertion Loss) on demand is that pad value is adjustable, and better return loss (Return Loss) characteristic of tool, when two-way signaling transmits, more stable signal allocation and anti-interference can be arranged, and can more increase practical convenience its whole execution in the use.

2. the utility model is owing to be to be provided with a plurality of splicing ears on housing, make after making this that wherein a splicing ear connects the coaxial cable of going up service end, allow other each splicing ears connect a plurality of TVs or the various different digital multimedia equipment of user side respectively, avoid needing to connect numerous TVs or various different digital multimedia equipment through the multicomponent orchestration, the situation of distorted signals takes place when causing two-way signaling to transmit, especially when the building user is numerous, can allow each user all be connected on each splicing ear simultaneously especially, do not need to prevent effectively that through the distributors of many groups layer by layer the situation of distorted signals took place when two-way signaling from transmitting.

In sum, the utility model embodiment really can reach desired use effect, again its disclosed concrete structure, not only do not seen in the like product, before also not being disclosed in application, really meet the regulation and the requirement of Patent Law fully, the special application that in accordance with the law proposes utility model patent.

The above is preferred embodiment of the present invention only, is not in order to limit practical range of the present invention.All equivalences of doing according to claims of the present invention change and modify, and all still belong within the utility model patent institute covering scope.

Claims (5)

1. multi-media network distributor, it is characterized in that, described multi-media network distributor is provided with a housing, be provided with a plurality of splicing ears in described housing outer end, and in described housing, be provided with circuit board, the splicing ear of corresponding housing is radial a plurality of match circuits that are connected with on described circuit board, described match circuit is made up of attenuator circuit collocation microstrip line, and described match circuit one end is connected with splicing ear on the housing, the other end then is connected to the Centroid place of circuit board with other match circuits, make each match circuit be suitable coupling on circuit board.

2. multi-media network distributor as claimed in claim 1 is characterized in that, the attenuator circuit of described match circuit is the T type attenuator circuit that the 3rd resistance in parallel forms T type shape between first and second resistance of two horizontally sets.

3. multi-media network distributor as claimed in claim 1 is characterized in that, the attenuator circuit of described match circuit is to connect the π type attenuator circuit that the 3rd resistance forms π type shape between two upright first and second resistance that are provided with.

4. multi-media network distributor as claimed in claim 1 is characterized in that, described housing is the octangle design, and makes each splicing ear protrusion be arranged on described housing upper surface.

5. multi-media network distributor as claimed in claim 1 is characterized in that described housing is rectangular-shaped design, is arranged on described hull outside end face and make each splicing ear protrude.

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