CN202309912U - Digital television receiver without batteries - Google Patents
Digital television receiver without batteries Download PDFInfo
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- CN202309912U CN202309912U CN2011203100060U CN201120310006U CN202309912U CN 202309912 U CN202309912 U CN 202309912U CN 2011203100060 U CN2011203100060 U CN 2011203100060U CN 201120310006 U CN201120310006 U CN 201120310006U CN 202309912 U CN202309912 U CN 202309912U
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Abstract
The utility model relates to a digital television receiver without batteries. The digital television receiver is mainly characterized in that a connector based on a specific protocol is arranged on a machine body, wherein a radio frequency receiving module, a digital television processor, an authentication chip and an exchange type power source conversion module are further arranged in the machine body. When the digital television receiver is connected with a handheld device through the connector, the exchange type power source conversion module obtains a power source from the handheld device through the connector, restricts a working current below a specific value and respectively supplies the working power source to the radio frequency receiving module, the digital television processor and the authentication chip; then authentication is conducted by the authentication chip and the handheld device; after the authentication is completed, the digital television processor receives a digital television signal via the radio frequency receiving module; and after being decoded, the digital television signal is sent to the handheld device to be displayed through the connector, thereby performing a function of using the handheld device to watch a digital television.
Description
Technical field
The utility model relates to a kind of DTV receiver, particularly relates to a kind of DTV receiver that does not have battery.
Background technology
Hand-held device development recent years fast; From early stage mobile computer mobile phone or flat computer till now; The Related product of this type of hand-held device all can be won consumer's favor, and the ancillary equipment of hand-held device also can bring the user more convenient utility function with arranging in pairs or groups.
Hand-held device is more and more general at present; The also just more and more variation of the ancillary equipment of these hand-held devices so arrange in pairs or groups; Intelligent mobile phone (iPhone) and flat computer (iPad) with Apple Computer's release; Even digital player (iPod) etc. all causes ardent reaction on market, and the ancillary equipment that therefore cooperates prior hand held devices to use is also competitively released like the mushrooms after rain, and a kind of receiver that provides prior hand held devices to watch DTV is wherein arranged; This receiver can be connected with mobile phone or flat computer; And behind this receiving digital television signal and decoding coding, deliver on mobile phone or the flat computer and play, can watch DTV through mobile phone or flat computer thus.
Yet establish battery in the above-mentioned DTV receiver supplying institute's palpus electricity consumption itself, so volume more greatly and heavier relatively, take up space and inconvenient to some extent so carry.Under this situation; If can obtain power supply from hand-held device, maybe can solve foregoing problems, electricity consumption has strict requirement yet hand-held device manufacturer is for ancillary equipment; For example there is strict restriction in Apple Computer for the operation of peripheral devices electric current, must be less than 100 milliamperes like electric current output.Therefore, how to let ancillary equipment more light and can meet the special specification requirement of hand-held device, promptly remain further self-criticism, and seek feasible solution.
This shows that above-mentioned existing DTV receiver obviously still has inconvenience and defective, and demands urgently further improving in structure and use.In order to solve the problem that DTV receiver exists; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see always that for a long time suitable design is developed completion; And common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of DTV receiver of no battery that has that volume is little, cost is low concurrently and can have the new structure of comprehensive adjustment function when using, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The purpose of the utility model is; Overcome the defective that existing DTV receiver exists, and a kind of DTV receiver of no battery of new structure is provided, technical problem to be solved is at the DTV receiver that a no battery is provided; Mainly be working power to be provided by hand-held device; And by the DTV receiver receiving digital signals and behind decoding and coding, transfer to hand-held device again and play TV programme, because the DTV receiver of the utility model has accurate power management; Can meet the special power specification requirement of hand-held device, thereby be suitable for practicality more.
The purpose of the utility model and to solve its technical problem be that technical scheme below adopting realizes.Its that proposes according to the utility model mainly includes a body, mainly is provided with an a connector and an antenna connection terminal mouth on this body, and this connector comprises power supply input pin, one group of signal access pin; Be provided with in this body: a digital television processor, consist predominantly of an above power input, above data access end and a signal receiving end, wherein a data access end is connected with signal access pin on the connector; One Receiver Module has an input, an output and a power input, and this input is connected with antenna connection terminal mouth on the body, and its output is connected to the signal receiving end of digital television processor; One trusted authentication chip has an input, an output and a power input, and this input and output are connected with the data access end of digital television processor respectively; One exchange type power modular converter; It has a power input and an above power output end; This power input is connected with the power supply output connecting pin of connector, and this power output end is connected with the power input of digital television processor, Receiver Module and trusted authentication chip.
The purpose of the utility model and solve its technical problem and can also adopt following technical measures to come further to realize.
The DTV receiver of aforesaid no battery; Wherein said this exchange type power modular converter comprises one first exchange type power transducer and one second exchange type power transducer, and the power input of this first, second exchange type power transducer is connected with the power supply input pin of aforementioned connector respectively.
The DTV receiver of aforesaid no battery; Wherein said this Receiver Module mainly is made up of two tuner for digital signals; The input of two tuner for digital signals is connected with antenna connection terminal mouth on the body through the inductance, electric capacity of one group of coupling respectively; Wherein tuner for digital signals has one group of high frequency output and one group of hyperfrequency output respectively; The high frequency output of this tuner for digital signals is connected to the radiofrequency signal receiving terminal of digital television processor, and the hyperfrequency output of another tuner for digital signals is connected to the radiofrequency signal receiving terminal of digital television processor.
The DTV receiver of aforesaid no battery, wherein said this digital television processor are in order to the digital television signal of format transformation, and it has two groups of RF signal input ends, one group of signal access terminals and one group of verify data access terminals; Wherein, two groups of RF signal input ends connect hyperfrequency and high-frequency digital TV signal through Receiver Module respectively; This signal access terminals is connected with the signal access pin of connector, and the verify data access terminals then is connected with trusted authentication chip and internal memory respectively.
The DTV receiver of aforesaid no battery is provided with an internal memory in wherein said this body, and this internal memory has a verify data access terminals respectively, and the verify data access terminals that this verify data access terminals is connected to digital television processor respectively connects.
The DTV receiver of aforesaid no battery adopts universal asynchronous transmission to receive (UART) interface between wherein said this DTV receiver and the hand-held device.
The DTV receiver of aforesaid no battery, wherein said this body is provided with a power supply port, and this power supply port has a power pin; Have a power supply output connecting pin on this connector, and be connected with power pin on the power supply port.
The DTV receiver of aforesaid no battery; The power pin at wherein said this power supply port further is connected with the power output end of connector through a protective device module, and this protective device module includes an arrangement for detecting, a power-supply system and an electronic switch; This power-supply system has an input and an output, and the power pin at power supply port is connected on its input and the connector, and output is connected with power supply output connecting pin on the connector; Whether this arrangement for detecting, and then supplies power through electronic switch control power-supply system detecting its electric current and voltage in order to the power pin that connects this power supply port.
The DTV receiver of aforesaid no battery, wherein said this electronic switch is to be made up of reinforced NMOS, and its grid is connected with the output of arrangement for detecting, and its drain electrode then is connected with the activation end of power-supply system.
The DTV receiver of aforesaid no battery, power port is a Micro USB interface on wherein said this connector.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the DTV receiver that the utility model does not have battery can reach suitable technological progress property and practicality, and has the extensive value on the industry; It has advantage at least: above-mentioned relevant exchange type power modular converter; Utilize the exchange type power technology, the efficient of its voltage transitions is higher, and the voltage stability after conversion is better; So power loss is lower, therefore can meet the restriction of hand-held device for output current.
In sum; The utility model is to reach the major technique means that aforementioned purpose takes to make aforementioned DTV receiver include a body; Mainly be provided with an a connector and an antenna connection terminal mouth on this body, this connector comprises power supply input pin, one group of signal access pin; Further be arranged with in the body again: a digital television processor, consist predominantly of an above power input, an above data access end and an above signal receiving end, wherein a data access end is connected with signal access pin on the connector; One Receiver Module has an input, above output and a power input, and this input is connected with antenna connection terminal mouth on the body, and its output is connected to the signal receiving end of digital television processor; One trusted authentication chip has an input, an output and a power input, and this input and output are connected with the data access end of digital television processor respectively; One exchange type power modular converter; It has a power input and an above power output end; This power input is connected with the power supply output connecting pin of connector, and this power output end is connected with the power input of digital television processor, Receiver Module and trusted authentication chip.Utilize the DTV receiver of the no battery of aforementioned components composition; After the user inserts hand-held device with the connector on this body; This exchange type power modular converter is obtained power supply through connector from hand-held device; And export power supply to digital television processor, Receiver Module and trusted authentication chip supplies its running; And after digital television processor obtains hand-held device authentication permission through trusted authentication chip, satisfy with Receiver Module obtain its digital television signal that receives through decoding and coding after, deliver to hand-held device to watch DTV via connector; Utilize previous designs, DTV receiver is used under the prerequisite that meets the requirement of hand-held device power specification.The utility model has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of the utility model technical scheme; In order more to know the technological means of understanding the utility model; And can implement according to the content of specification, and for let the above-mentioned of the utility model with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the stereogram that the utility model does not have the DTV receiver of battery.
Fig. 2 is the detailed architecture figure that the utility model does not have the DTV receiver of battery.
Fig. 3 is first detailed circuit diagram of the utility model DTV receiver of not having battery.
Fig. 4 is second detailed circuit diagram of the utility model DTV receiver of not having battery.
Fig. 5 is the 3rd detailed circuit diagram of the utility model DTV receiver of not having battery.
Fig. 6 is the enforcement structure chart of the utility model DTV receiver of not having battery.
10: body 11: connector
12: antenna connection terminal mouth 121: antenna
13: power supply port 20: digital television processor
30: Receiver Module 40: trusted authentication chip
50: internal memory 60: the exchange type power modular converter
62: the second exchange type power transducers of 61: the first exchange type power transducers
70: protective device module 71: arrangement for detecting
72: power-supply system 73: electronic switch
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked; Below in conjunction with accompanying drawing and preferred embodiment; To its embodiment of DTV receiver, structure, characteristic and the effect thereof of the no battery that proposes according to the utility model, specify as after.
Embodiment about the utility model sees also Fig. 1, mainly is on a body 10, to be arranged with an a connector 11 and an antenna connection terminal mouth 12, and this connector 11 comprises power supply input pin, one group of signal access pin; Other sees also Fig. 2, further is arranged with a digital television processor 20, a Receiver Module 30, a trusted authentication chip 40, an internal memory 50 and an exchange type power modular converter 60 in this body 10; Wherein:
Shown in Fig. 3 right side; It is a possible embodiments of aforementioned connector 11; In the present embodiment, this connector 11 is matched with 30 pin connectors of Apple computer Co., Ltd production of intelligent type mobile phone (iPhone), flat computer (iPad) or digital player (iPod) (being designated hereinafter simply as hand-held device) output/input interface, and the power supply output connecting pin (5.0V) of this connector 11 is a pin 8; Power supply input pin (VCC3.3V) is a pin 13, and signal access pin is a pin 4,6; This power supply input pin (VCC3.3V) is connected with exchange type power modular converter 60, when the utility model passes through connector 11 and is connected with prior hand held devices, promptly imports pin (VCC3.3V) is obtained a 3.3V on hand-held device DC power supply through power supply.
See also shown in Figure 4; Aforesaid exchange type power modular converter 60 comprises one first exchange type power transducer 61 and one second exchange type power transducer 62; The power input IN of this first, second exchange type power transducer 61,62 is connected with the power supply input pin (VCC 3.3V) of aforementioned connector 11 respectively; Through changing the DC power supply that produces a 1.8V and a 1.2V respectively, give the circuit element (like digital tv processor 20) in the body 10 to supply power respectively; Because first, second exchange type power transducer 61,62 utilizes PWM mode (PWM) control output voltage; And adjust output voltage through the back coupling mode; So can be strict with output voltage (electric current) specification, require operating current to be lower than 100 milliamperes power specification requirement thereby meet prior hand held devices.
Other sees also Fig. 3, and this digital television processor 20 is in order to the digital television signal of conversion specific format, and in the present embodiment, it can be used for handling respectively DVB-T and I SDB-T digital television signal; Digital television processor 20 has two groups of RF signal input ends (UHFP, UHFN, VHFP, VHFN), one group of signal access terminals (USB_DN, USB_DP) and one group of verify data access terminals (HGSCLK, HGSD) again; Wherein, two groups of RF signal input ends (UHFP, UHFN, VHFP, VHFN) receive hyperfrequency and high-frequency digital TV signal through Receiver Module 30 respectively; This signal access terminals (USB_DN, USB_DP) is in order to send digital television signal to hand-held device through connector 11, and verify data access terminals (HGSCLK, HGSD) then is connected with trusted authentication chip 40 and internal memory 50 respectively.
This trusted authentication chip 40 and internal memory 50 have a verify data access terminals (HSGD, HGSCLK) and a power input (VCC3.3V) respectively; The verify data access terminals (HSGD, HGSCLK) that this verify data access terminals (HSGD, HGSCLK) is connected to digital television processor 20 respectively connects, and power input (VCC3.3V) is connected with the power supply input pin (VCC3.3V) of aforementioned connector 11 in addition.
About this Receiver Module 30; See also Fig. 5; It mainly is made up of the passive device of 31,32 and two groups of couplings of two tuner for digital signals; The input UB of two tuner for digital signals 31,32 is connected with antenna connection terminal mouth 12 on the body 10 through inductance (L9, L10, L11) (L12, L14, the L15) electric capacity (C56, C60) (C53, C59) of coupling respectively; Wherein a tuner for digital signals 32,31 has one group of high frequency output (VHFP, VHFN), one group of hyperfrequency output (UHFP, UHFN) respectively; The high frequency output of this tuner for digital signals 32 (VHFP, VHFN) is connected to the radiofrequency signal receiving terminal (VHFP, VHFN) of digital television processor 20, and the hyperfrequency output of another tuner for digital signals 31 (UHFP, UHFN) is connected to the radiofrequency signal receiving terminal (UHFP, UHFN) of digital television processor 20.
Above-mentioned relevant Receiver Module 30; The resonance of the inductance of its hyperfrequency digital signal utilization coupling and electric capacity L9, L10, L11, C56, C60 obtains; In addition high-frequency digital signal then is that inductance and electric capacity L12, L14, L15, C49, the C53 through another coupling, the resonance of C59 obtain, and transfers its signal the RF signal input end (UHFP, UHFN, VHFP, VHFN) of balanced signal to export digital television processor 20 to from non-equilibrium signal through tuner for digital signals 31,32 respectively in addition.
By the above-mentioned DTV receiver of forming no battery; See also Fig. 6; Be to constitute with the slot of hand-held device with the connector on the body 10 11 to be electrically connected; And after but antenna connection terminal mouth 12 inserts the antenna 121 of a receiving digital signals; Power supply through connector 11 is imported 3.3 volts the operating voltage that pin (VCC3.3V) is obtained hand-held device, converts this operating voltage (3.3V) into operating voltage (1.8V, 1.2V) that digital television processor 20 can operate through exchange type power modular converter 60 simultaneously; Wherein, This trusted authentication chip 40 is delivered to hand-held device to obtain authentication permission through verify data access terminals (HSGD, HGSCLK) and signal access terminals (USB_DN, USB_DP) with verify data with the internal memory 50 that stores verify data; After the hand-held device of waiting sends permission; The RF signal input end of this digital television processor 20 (UHFP, UHFN, VHFP, VHFN) receives the digital signal that is obtained by antenna 121; Decoding and coding via digital television processor 20 are processed video-audio data; Beginning is delivered to the signal access pin 4,6 of connector 11 with video-audio data through signal access terminals (USB_DN, USB_DP), further video-audio data is delivered to hand-held device to watch DTV.
Utilize previous designs; The no battery DTV receiver of the utility model can through with hand-held device rating digital television function is provided after hand-held device combines; And obtain working power (being about 97 milliamperes) from hand-held device, but still can meet its strict power specifications (less than 100 milliamperes).
There is relevant regulations in Apple Computer in addition for low electric source modes again, as: only plug equipment, but do not start software program; After perhaps plugging equipment, in the software startup, but do not teleview; It is defined in when hanging down the electric source modes state; This current drain must be less than 10 milliamperes; So in the present embodiment, when this DTV receiver was electrically connected with hand-held device formation, communicative mode adopted universal asynchronous transmission to receive (UART) interface between its DTV receiver and the hand-held device; Through universal asynchronous transmission reception DTV receiver is switched under the low electric source modes; Make institute's consumed current only less than 5 milliamperes; And when the software of hand-held device has started and begun to watch DTV; This DTV receiver then can switch to normal mode through universal asynchronous transmission receiving interface, and foregoing about 97 milliamperes of its current sinking number is not when in addition the antenna 121 of this DTV receiver receives digital signal or the software of this hand-held device when closing; This DTV receiver then receives through universal asynchronous transmission and switches to low electric source modes, whereby with further raising power management efficiency.
About the another preferred embodiment of the utility model, be the function that further provides the hand-held device charging; For realizing above-mentioned functions, as shown in Figure 1, on aforementioned body 10, further be provided with a power supply port 13; See also shown in Figure 3; This power supply port 13 is a Micro USB interface, and it has a power pin (VBUS), and this power pin (VBUS) will provide a direct current power supply (USB5.0); And provide a charging signals (Charger oN) to give digital television processor 20 simultaneously, supply digital television processor 20 to judge whether this power supply port 13 is imported power supply and hand-held device is charged.
In the present embodiment, the power pin at this power supply port 13 (VBUS) further is connected with the power output end (5.0V) of connector 11 through a protective device module 70, preventing out-put supply overvoltage or overcurrent, and then avoids causing the hand-held device damage.See also shown in Figure 4; This protective device module 70 includes an arrangement for detecting 71, a power-supply system 72 and an electronic switch 73, and whether this arrangement for detecting 71 has over proof voltage or electric current in order to the USB5.0V that connects and detect these power supply port 13 inputs, and whether decision drives electronic switch 73; In the present embodiment; This electronic switch 73 is to be made up of reinforced NMOS, and its grid is connected with the output of arrangement for detecting 71, and its drain electrode then is connected with the activation end of power-supply system 72; This power-supply system 72 exports the input power supply USB5.0V of power port 13 to connector 11 after conversion, via 11 pairs of hand-held device chargings of connector; As stated; USB5.0V is unusual if this arrangement for detecting 71 detects the input power supply; Then these electronic switch 73 meetings are pulled to ground connection with the voltage of the power pin (VBUS) at power supply port 13; Otherwise, then will import power supply (USB5.0V) through the stable voltage of power-supply system 72 output one to be connected to the power supply output connecting pin (5.0V) of connector 11, hand-held device is charged.Thus, when environmental aspect allowed, hand-held device can charge when the rating DTV synchronously, with the abundant power supply of supply hand-held device.
The above; It only is the preferred embodiment of the utility model; Not being that the utility model is done any pro forma restriction, though the utility model with the preferred embodiment exposure as above, yet is not in order to limit the utility model; Anyly be familiar with the professional and technical personnel; In not breaking away from the utility model technical scheme scope, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents of above-mentioned announcement capable of using, be the content that does not break away from the utility model technical scheme in every case;, all still belong in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did according to the technical spirit of the utility model.
Claims (10)
1. a DTV receiver that does not have battery is characterized in that it mainly includes a body, mainly is provided with an a connector and an antenna connection terminal mouth on this body, and this connector comprises power supply input pin, one group of signal access pin; Be provided with in this body:
One digital television processor consists predominantly of an above power input, above data access end and a signal receiving end, and wherein a data access end is connected with signal access pin on the connector;
One Receiver Module has an input, an output and a power input, and this input is connected with antenna connection terminal mouth on the body, and its output is connected to the signal receiving end of digital television processor;
One trusted authentication chip has an input, an output and a power input, and this input and output are connected with the data access end of digital television processor respectively;
One exchange type power modular converter; It has a power input and an above power output end; This power input is connected with the power supply output connecting pin of connector, and this power output end is connected with the power input of digital television processor, Receiver Module and trusted authentication chip.
2. the DTV receiver of no battery according to claim 1; It is characterized in that this exchange type power modular converter comprises one first exchange type power transducer and one second exchange type power transducer, the power input of this first, second exchange type power transducer is connected with the power supply input pin of aforementioned connector respectively.
3. the DTV receiver of no battery according to claim 2; It is characterized in that this Receiver Module mainly is made up of two tuner for digital signals; The input of two tuner for digital signals is connected with antenna connection terminal mouth on the body through the inductance, electric capacity of one group of coupling respectively; Wherein tuner for digital signals has one group of high frequency output and one group of hyperfrequency output respectively; The high frequency output of this tuner for digital signals is connected to the radiofrequency signal receiving terminal of digital television processor, and the hyperfrequency output of another tuner for digital signals is connected to the radiofrequency signal receiving terminal of digital television processor.
4. the DTV receiver of no battery according to claim 3 is characterized in that the digital television signal of this digital television processor in order to format transformation, and it has two groups of RF signal input ends, one group of signal access terminals and one group of verify data access terminals; Wherein, two groups of RF signal input ends connect hyperfrequency and high-frequency digital TV signal through Receiver Module respectively; This signal access terminals is connected with the signal access pin of connector, and the verify data access terminals then is connected with trusted authentication chip and internal memory respectively.
5. the DTV receiver of no battery according to claim 4; It is characterized in that being provided with in this body an internal memory; This internal memory has a verify data access terminals respectively, and the verify data access terminals that this verify data access terminals is connected to digital television processor respectively connects.
6. the DTV receiver of no battery according to claim 5 is characterized in that adopting between this DTV receiver and the hand-held device universal asynchronous transmission receiving interface.
7. according to the DTV receiver of the described no battery of arbitrary claim in the claim 1 to 6, it is characterized in that this body is provided with a power supply port, this power supply port has a power pin;
Have a power supply output connecting pin on this connector, and be connected with power pin on the power supply port.
8. the DTV receiver of no battery according to claim 7; The power pin that it is characterized in that this power supply port further is connected with the power output end of connector through a protective device module, and this protective device module includes an arrangement for detecting, a power-supply system and an electronic switch;
This power-supply system has an input and an output, and the power pin at power supply port is connected on its input and the connector, and output is connected with power supply output connecting pin on the connector;
Whether this arrangement for detecting, and then supplies power through electronic switch control power-supply system detecting its electric current and voltage in order to the power pin that connects this power supply port.
9. the DTV receiver of no battery according to claim 8 is characterized in that this electronic switch is to be made up of reinforced NMOS, and its grid is connected with the output of arrangement for detecting, and its drain electrode then is connected with the activation end of power-supply system.
10. the DTV receiver of no battery according to claim 7 is characterized in that power port is a Micro USB interface on this connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203100060U CN202309912U (en) | 2011-08-22 | 2011-08-22 | Digital television receiver without batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203100060U CN202309912U (en) | 2011-08-22 | 2011-08-22 | Digital television receiver without batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309912U true CN202309912U (en) | 2012-07-04 |
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ID=46378719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203100060U Expired - Fee Related CN202309912U (en) | 2011-08-22 | 2011-08-22 | Digital television receiver without batteries |
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| Country | Link |
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| CN (1) | CN202309912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993264A (en) * | 2015-07-17 | 2015-10-21 | 房纪军 | Television signal receiving device for mobile phone terminals |
-
2011
- 2011-08-22 CN CN2011203100060U patent/CN202309912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993264A (en) * | 2015-07-17 | 2015-10-21 | 房纪军 | Television signal receiving device for mobile phone terminals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20140822 |
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| EXPY | Termination of patent right or utility model |