CN203167091U - Telephone return-type modem - Google Patents
Telephone return-type modem Download PDFInfo
- Publication number
- CN203167091U CN203167091U CN 201220743266 CN201220743266U CN203167091U CN 203167091 U CN203167091 U CN 203167091U CN 201220743266 CN201220743266 CN 201220743266 CN 201220743266 U CN201220743266 U CN 201220743266U CN 203167091 U CN203167091 U CN 203167091U
- Authority
- CN
- China
- Prior art keywords
- demodulator
- modulator
- modem
- recoverable
- receiving module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mobile Radio Communication Systems (AREA)
- Facsimiles In General (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model relates to a telephone return-type modem. The telephone return-type modem includes a modem and a network terminal. The modem and the network terminal form a loop through a telephone line and a cable. The modem is connected with a voice separator; the modem is further connected with at least eight segments of digital kinescopes; and the digital kinescopes are connected with a counter and a wireless receiving module. Compared with the prior art, the telephone return-type modem of the utility model is advantageous in that Internet surfing time can be limited through setting time for the modem, and the modem can be also protected correspondingly.
Description
Technical field
The utility model relates to a kind of modulator-demodulator; relate in particular to a kind of switching time that can modulator-demodulator be set by wireless terminal so that the surf time is limited, a kind of recoverable modulator-demodulator of phone that the time is set that modulator-demodulator is protected.
Background technology
The English of modulator-demodulator is MODEM, is the Modulator(modulator in fact) with the Demodulator(demodulator) abbreviation, Chinese is called modulator-demodulator.Partials according to Modem are referred to as " cat " cheek by jowl.So-called modulation converts digital signal to phone line defeated analog signal exactly; Demodulation namely becomes digital signal to analog signal conversion.Be collectively referred to as modulator-demodulator.
Its effect is analog signal and digital signal " translator ".Electronic signal is divided two kinds, and a kind of is " analog signal ", and a kind of is " digital signal ".The telephone line transmission that we use be analog signal, and what transmit between the computer is digital signal.So when you want by telephone wire the computer of oneself to be connected into local area network (LAN), just must use two kinds of different signals of modulator-demodulator " translation ".After being connected into the Internet, when computer sends information to local area network (LAN), because the telephone wire transmission is analog signal, so must come digital signal " translation " is become analog signal with modulator-demodulator, just can be sent on the local area network (LAN), this process is called " modulation ".When computer obtains information from local area network (LAN), because the information that transmits from local area network (LAN) by telephone wire all is analog signal, so computer wants to understand them, also must be by modulator-demodulator this " translation ", this process is called " demodulation ", generally speaking just is called " modulation ".
On the other hand, present people is to craziness online, and sometimes even online all night, if can carry out certain restriction to the surf time at the modem end, containment that so can be to a certain degree is the drawback of online excessively.
Summary of the invention
Based on this, be necessary to provide a kind of switching time that can modulator-demodulator be set by wireless terminal so that the surf time is limited, the recoverable modulator-demodulator of a kind of phone that modulator-demodulator is protected.
The technical solution of the utility model is specific as follows:
The recoverable modulator-demodulator of a kind of phone comprises that a modulator-demodulator, a network terminal, described modulator-demodulator and the network terminal form a loop by a telephone wire and a cable.Described modulator-demodulator is connected to a Splitter, also is connected with at least one 8 hop count sign indicating number picture tube on the described modulator-demodulator, and described digital imaging pipe connects a counter and a wireless receiving module.
Further, described Splitter has three interfaces, and the one interface connects described modulator-demodulator, and an interface connects described telephone wire, and another interface connects described cable.
Further, described counter and described wireless receiving module communicate to connect, and can receive the wireless communication signals of its transmission.
Further, described wireless receiving module and wireless terminal communications and receive signal of communication and the control signal of its transmission.
The utility model is with respect to prior art, and the advantage that it has and beneficial effect are: can protect modulator-demodulator simultaneously accordingly by modulator-demodulator being arranged the time so that the computer internet time is limited.
Description of drawings
Fig. 1 is the module frame chart of the recoverable modulator-demodulator of a kind of phone of the utility model.
Embodiment
As shown in Figure 1, the recoverable modulator-demodulator of a kind of phone, comprise that a modulator-demodulator, a network terminal, described modulator-demodulator and the network terminal form a loop by a telephone wire and a cable, it is characterized in that: described modulator-demodulator is connected to a Splitter, also be connected with at least one 8 hop count sign indicating number picture tube on the described modulator-demodulator, described digital imaging pipe connects a counter and a wireless receiving module.
The recoverable modulator-demodulator of this phone is a cable modem, can utilize cable to transmit downlink data rapidly, and transmit upstream data with telephone wire, constitutes a complete loop.The modulator-demodulator that is installed in head end is broadcasted a segment information every 0.5s, should with what phone number dial comprising the recoverable modulator-demodulator of phone.Information such as the IP address of controller.As long as the user connects telephone wire and cable, opening power, the recoverable modulator-demodulator of phone just reads these information automatically, and dials by prompting, is connected with the long-range people's of connecing server.After the connection, the recoverable modulator-demodulator of phone just is connected with the Internet, and user's computer can utilize DHCP to obtain the IP address automatically, in the server download information of network.This modulator-demodulator is connected to a Splitter, this Splitter with the low-frequency audio signal on the circuit (300 ~ 3400Hz) with the transmission data high-frequency digital modulation signal (20KHz～4.4MHz/12MHz) effectively separate, then audio signal is sent into telephone set facsimile machine etc., the high-frequency digital modulation signal is sent into modulator-demodulator, and this Splitter has been realized being independent of each other when a plurality of extensions of user side, facsimile machine and modulator-demodulator use.In order to realize the function of the time that arranges, can adopt a wireless terminal that the time is arranged, show that one the digital imaging pipe of time connects a wireless receiver, the time that sets up sends to this wireless receiver, and is presented in the digital imaging pipe.
The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (4)
1. recoverable modulator-demodulator of phone, comprise that a modulator-demodulator, a network terminal, described modulator-demodulator and the network terminal form a loop by a telephone wire and a cable, it is characterized in that: described modulator-demodulator is connected to a Splitter, also be connected with at least one 8 hop count sign indicating number picture tube on the described modulator-demodulator, described digital imaging pipe connects a counter and a wireless receiving module.
2. the recoverable modulator-demodulator of a kind of phone according to claim 1, it is characterized in that: described Splitter has three interfaces, and the one interface connects described modulator-demodulator, and an interface connects described telephone wire, and another interface connects described cable.
3. the recoverable modulator-demodulator of a kind of phone according to claim 1, it is characterized in that: described counter and described wireless receiving module communicate to connect, and can receive the wireless communication signals of its transmission.
4. the recoverable modulator-demodulator of a kind of phone according to claim 1 is characterized in that: described wireless receiving module and wireless terminal communications also receive signal of communication and the control signal of its transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743266 CN203167091U (en) | 2012-12-31 | 2012-12-31 | Telephone return-type modem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743266 CN203167091U (en) | 2012-12-31 | 2012-12-31 | Telephone return-type modem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203167091U true CN203167091U (en) | 2013-08-28 |
Family
ID=49028242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220743266 Expired - Fee Related CN203167091U (en) | 2012-12-31 | 2012-12-31 | Telephone return-type modem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203167091U (en) |
-
2012
- 2012-12-31 CN CN 201220743266 patent/CN203167091U/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: 20130828 Termination date: 20131231 |