CN202979196U - Set-top box unidirectional broadcast-to-bidirectional interaction conversion device - Google Patents
Set-top box unidirectional broadcast-to-bidirectional interaction conversion device Download PDFInfo
- Publication number
- CN202979196U CN202979196U CN 201220743140 CN201220743140U CN202979196U CN 202979196 U CN202979196 U CN 202979196U CN 201220743140 CN201220743140 CN 201220743140 CN 201220743140 U CN201220743140 U CN 201220743140U CN 202979196 U CN202979196 U CN 202979196U
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- top box
- conversion device
- module
- bidirectional interaction
- remote control
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Abstract
The utility model discloses a set-top box unidirectional broadcast-to-bidirectional interaction conversion device. The set-top box unidirectional broadcast-to-bidirectional interaction conversion device comprises a center control MCU, an infrared receiving module and a power source module which are connected with the center control MCU, as well as an input/output interface. The set-top box unidirectional broadcast-to-bidirectional interaction conversion device further comprises a remote control signal modulation module used for modulating remote control signals, and a low pass filtering circuit module which is connected with the remote control signal modulation module; the input and output interface is connected with an EOC (Ethernet over COAX Ethernet data are transmitted through coaxial cables) terminal and a tuner of a set-top box respectively through a cable line; the set-top box unidirectional broadcast-to-bidirectional interaction conversion device also comprises a signal isolation module used for isolating the remote control signals from video signals; and the signal isolation module is a splitter. The set-top box unidirectional broadcast-to-bidirectional interaction conversion device of the utility model modulates the remote control signals to a high-frequency section; the remote control signals communicate with the EOC terminal through the cable line, such that the object of bidirectional interaction is achieved; at the same time, the device is only needed to be installed between the tuner of the set-top box and the cable line; and therefore, the set-top box unidirectional broadcast-to-bidirectional interaction conversion device is advantageous in convenient installation and low cost.
Description
Technical field
The utility model relates to that a kind of set-top box is unidirectional changes two-way device.
Background technology
Strengthen the propelling dynamics of the integration of three networks along with China, the two-way interaction business becomes the development priority of cable operator from now on.The various places cable operator is all being accelerated the transformation of cable network Two-way, the construction of increment interaction platform and the development of interactive service, becomes " One-to-All Broadcast " and is " two-way interaction ".
During the upgrading of existing technology from unidirectional to two-way, difficulty is large, and expense is high.Except the network rebuilding of main line, also will be referred to have provided the upgrading problem of registering one's residence of terminal set top boxes ten hundreds of to the user family, its quantities is not less than in the translation of doing a Digital Television.Granting is the set-top box of having reserved network interface to user's terminal equipment, the one-way digital television business that is still that open to the user early stage, when the user has the two-way television business demand, operator carries out the secondary technology upgrading to user charge to user's reservation network interface set-top box device, thereby makes it support the bi-directional digital business.Still need owing to really opening two-way services the end user separately to pay and buy the modulator-demodulator that is connected in the network interface set-top box, and need TV set-top box to be reserved with network interface can to carry out bi-directional digital television upgrading, thereby say that existing unidirectional change bidirectional technique cost is high, the characteristics that technical scheme falls behind.
The utility model content
In order to realize that low-cost high-efficiency ground carries out the bi-directional digital television upgrading, the utility model provides a kind of set-top box the unidirectional design that changes two-way device.
A kind of set-top box is unidirectional changes two-way device, comprise middle control MCU, be connected to the infrared receiving module of middle control MCU, power module, and input/output interface, also be provided with the remote signal modulation module for the modulation remote signal, and the low-pass filter circuit module that is connected with the remote signal modulation module; Described input/output interface transmits by coaxial cable with EOC(Ethernet over COAX ether data respectively by the Cable line) and the tuner of set-top box be connected.
Also be provided with and be connected the signal isolation module that is used for isolation remote signal and vision signal with the low-pass filter circuit module.
Described signal isolation module is splitter.
In sum, the utility model modulation remote signal is to high band, and remote signal realizes the purpose of two-way interaction by cable line and EOC terminal communication, only needs simultaneously device is arranged between set-top box tuner and cable line, and easy for installation, improvement cost is low.
Description of drawings
Fig. 1 is the unidirectional structural representation that changes two-way device of a kind of set-top box described in the utility model.
Embodiment
In order to allow those skilled in the art understand better the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1, the utility model has disclosed that a kind of set-top box is unidirectional changes two-way device, comprise middle control MCU, be connected to the infrared receiving module of middle control MCU, power module, and input/output interface, also be provided with the remote signal modulation module for the modulation remote signal, and the low-pass filter circuit module that is connected with the remote signal modulation module; Described input/output interface transmits by coaxial cable with EOC(Ethernet over COAX ether data respectively by the Cable line) and the tuner of set-top box be connected.
Infrared receiving module receives the remote signal of remote controller and afterwards remote signal is issued MCU, MCU controls the remote signal modulation module, remote signal is modulated on higher frequency, then is undertaken sending to the EOC terminal by the Cable line after filtering by the low-pass filter circuit module.Usually, remote signal being modulated on a certain higher-frequency point by 38KHZ, requiring this high frequency points less than the frequency band requirement on radio, TV and film industries communication protocol, is 50-858MHz as the DVB_C agreement, the remote signal frequency after the modulation is less than 50MHZ, in order to avoid interfere with TV signal.
During for fear of straighforward operation, cable television program is interfered, and also is provided with to be connected the signal isolation module that is used for isolation remote signal and vision signal with the low-pass filter circuit module.The signal isolation module adopts splitter to realize.
The present embodiment is more excellent execution mode of the present utility model; need to prove; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (3)
1. a set-top box is unidirectional changes two-way device, comprise middle control MCU, be connected to the infrared receiving module of middle control MCU, power module, and input/output interface, it is characterized in that, also be provided with the remote signal modulation module for the modulation remote signal, and the low-pass filter circuit module that is connected with the remote signal modulation module;
Described input/output interface is connected with the tuner of EOC and set-top box respectively by the Cable line.
2. set-top box according to claim 1 is unidirectional changes two-way device, it is characterized in that, also is provided with to be connected the signal isolation module that is used for isolation remote signal and vision signal with the low-pass filter circuit module.
3. set-top box according to claim 2 is unidirectional changes two-way device, it is characterized in that, described signal isolation module is splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743140 CN202979196U (en) | 2012-12-31 | 2012-12-31 | Set-top box unidirectional broadcast-to-bidirectional interaction conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743140 CN202979196U (en) | 2012-12-31 | 2012-12-31 | Set-top box unidirectional broadcast-to-bidirectional interaction conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202979196U true CN202979196U (en) | 2013-06-05 |
Family
ID=48520212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220743140 Expired - Fee Related CN202979196U (en) | 2012-12-31 | 2012-12-31 | Set-top box unidirectional broadcast-to-bidirectional interaction conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202979196U (en) |
-
2012
- 2012-12-31 CN CN 201220743140 patent/CN202979196U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131231 |