KR101625675B1 - Digital broadcasting receiver capable of selecting multi channel - Google Patents
Digital broadcasting receiver capable of selecting multi channel Download PDFInfo
- Publication number
- KR101625675B1 KR101625675B1 KR1020090111437A KR20090111437A KR101625675B1 KR 101625675 B1 KR101625675 B1 KR 101625675B1 KR 1020090111437 A KR1020090111437 A KR 1020090111437A KR 20090111437 A KR20090111437 A KR 20090111437A KR 101625675 B1 KR101625675 B1 KR 101625675B1
- Authority
- KR
- South Korea
- Prior art keywords
- unit
- broadcasting
- channel
- tuner
- signals
- Prior art date
Links
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
The present invention relates to a multi-channel selectable digital broadcast receiver capable of selecting and receiving multiple channels.
The present invention provides a tuner comprising: a tuner for tuning at least one channel of a broadcast signal received through an antenna; A switching unit for separating the broadcasting signals of the tuned channel into two or more and switching the broadcasting signals; At least one demodulator for receiving and demodulating the switched broadcast signal; At least one output unit for outputting a demodulated broadcast signal in each of the demodulation units; And a controller for controlling operations of the tuner unit, the switching unit, the demodulator unit, and the output unit, respectively. Channel digital broadcast receiver.
Digital broadcasting receiver, broadcasting signal, tuner, channel, demodulation, switching
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a multi-channel digital broadcasting receiver, and more particularly, to a multi-channel digital broadcasting receiver capable of selecting and receiving multiple channels.
Generally, a digital broadcasting receiver is a device for selecting and receiving a digital broadcasting, such as a digital satellite receiver, a digital terrestrial receiver, a digital cable receiver, and a DMB receiver. Digital broadcasting refers to a system for compressing and transmitting digital video and audio data using a predetermined compression algorithm, for example, a hybrid coding algorithm, and restoring compressed and transmitted video and audio data to original data to provide various broadcast data to viewers do. Such digital broadcasting receivers are becoming increasingly complicated and used in various products in accordance with the trend of popularization and upgrading. Recently, digital broadcasting receivers selectively receiving multiple channels have been proposed.
1 is a block diagram showing an example of a conventional digital broadcast receiver.
1, the conventional
Therefore, in the related art, when a KBS satellite broadcast is watched over a specific channel while recording the KBS satellite broadcast through another channel, or when another European satellite broadcast is recorded, and when a KBS satellite broadcast is viewed through a specific channel, The tuning operation must be separately performed in the tuner. In this tuning, a slight time delay may occur. Since the signal line from the antenna to the output part is separately added to the channel, the circuit becomes complicated, There is a problem that it is accompanied by the spatial restriction of the PCB to be implemented.
The present invention relates to a digital broadcast receiver having a multi-channel selectable function for enabling selection and reception of multiple channels.
The present invention provides a tuner comprising: a tuner for tuning at least one channel of a broadcast signal received through an antenna; A switching unit for separating the broadcasting signals of the tuned channel into two or more and switching the broadcasting signals; Two or more demodulators for receiving and demodulating the switched broadcasting signals, respectively; At least two output units outputting the demodulated broadcast signals; And a controller for controlling operations of the tuner unit, the switching unit, the demodulator unit, and the output unit, respectively. Channel digital broadcast receiver.
The tuner unit tunes one channel, and the switching unit separates the broadcast signals of the tuned one channel into two or more and switches them to different demodulators.
Also, the tuner unit tunes two or more channels, and the switching unit switches broadcast signals of the tuned two or more channels to one demodulator unit.
The switching unit switches the broadcasting signal to another demodulating unit while demodulating the broadcasting signal in one of the two or more demodulating units.
According to another aspect of the present invention, there is provided a tuner comprising: at least two tuners each tuning at least one channel of a broadcast signal received via two or more corresponding antennas; A switching unit for separating the broadcasting signals of the channels tuned by the respective tuner units into at least one or more broadcasting signals and switching the broadcasting signals; Two or more demodulation units for receiving and demodulating the switched broadcasting signal; At least two output units for outputting demodulated broadcast signals in the respective demodulation units; And a controller for controlling operations of the tuner unit, the switching unit, the demodulator unit, and the output unit, respectively. Channel digital broadcast receiver.
The two or more tuner units tune different channels, and the switching unit separates the tuned broadcast signals of the different channels into two or more, and switches them to different demodulators.
The two or more tuner units tune different channels, and the switching unit switches the broadcasting signals of the tuned different channels to one demodulator.
The switching unit switches the broadcasting signal to another demodulating unit while demodulating the broadcasting signal in one of the two or more demodulating units.
According to the present invention, it is possible to selectively receive multiple channels in a digital broadcast receiver applied to satellite broadcast, terrestrial broadcast, cable broadcast, DMB broadcast, etc. through a simple and inexpensive circuit design.
In addition, according to the present invention, while viewing a specific broadcast, it is possible to view another broadcast while recording the specific broadcast.
Further, according to the present invention, other broadcasts can be viewed using the PIP or PBP function while watching a specific broadcast.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. do.
2 is a configuration diagram of a multi-channel selectable digital broadcast receiver according to an embodiment of the present invention.
2, a
According to such a configuration, the multi-channel selectable
3 is a configuration diagram of a multi-channel selectable digital broadcast receiver according to another embodiment of the present invention.
FIG. 3 illustrates a digital broadcast receiver capable of receiving two channels according to another embodiment of the present invention. 3, the two-channel selectable
With this configuration, in the multi-channel selectable
An example of a multiple channel selection and reception process according to broadcast signals S1, S2.S3, and S4 switched in the
The
Although FIG. 3 shows an example for selectively receiving two broadcast channels, in another embodiment of the present invention, three or more tuner units 220 may be provided to selectively receive three or more broadcast channels . Accordingly, three or
As described above, in the digital broadcasting receiver capable of selecting multiple channels according to the embodiments of the present invention, the tuner unit applied to the digital broadcasting receiver for satellite broadcasting, terrestrial broadcasting, cable broadcasting, and DMB broadcasting selectively receives multiple channels simultaneously . This can be achieved through relatively simple and easy circuit design. The present invention can be very usefully used when a portable communication device has been popularized and it is desired to simultaneously record while watching a broadcast.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, I will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims.
1 is a block diagram showing an example of a conventional digital broadcast receiver.
2 is a configuration diagram of a multi-channel selectable digital broadcast receiver according to an embodiment of the present invention.
3 is a configuration diagram of a multi-channel selectable digital broadcast receiver according to another embodiment of the present invention.
Description of the Related Art [0002]
110, 210:
130, 230: switching
150, 250:
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090111437A KR101625675B1 (en) | 2009-11-18 | 2009-11-18 | Digital broadcasting receiver capable of selecting multi channel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090111437A KR101625675B1 (en) | 2009-11-18 | 2009-11-18 | Digital broadcasting receiver capable of selecting multi channel |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110054690A KR20110054690A (en) | 2011-05-25 |
KR101625675B1 true KR101625675B1 (en) | 2016-05-30 |
Family
ID=44363846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020090111437A KR101625675B1 (en) | 2009-11-18 | 2009-11-18 | Digital broadcasting receiver capable of selecting multi channel |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101625675B1 (en) |
-
2009
- 2009-11-18 KR KR1020090111437A patent/KR101625675B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR20110054690A (en) | 2011-05-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8155631B2 (en) | Multichannel scanning apparatus and method for dual DMB-enabled mobile phone | |
JP3564961B2 (en) | Digital broadcast receiver | |
KR100396674B1 (en) | Digital TV | |
GB2397711A (en) | Broadcasting receiver | |
US7017177B1 (en) | Digital broadcasting receiver and method of controlling the same | |
CN104854794B (en) | Television receiver, television broadcast reception method and mobile terminal | |
US7072685B2 (en) | Digital/analog broadcast receiver | |
US20040220862A1 (en) | Multiview selective listening system | |
JP4329551B2 (en) | Digital broadcast receiver | |
US7215385B2 (en) | Broadcast receiver | |
JP3634823B2 (en) | Broadcast receiver | |
US7337461B2 (en) | CATV system provided with a digital broadcasting receiving unit and a bilateral remote controller | |
WO2007064125A1 (en) | Method and device for setting connection type of dual tuner | |
US8634026B2 (en) | Digital broadcast receiving apparatus | |
JP3702239B2 (en) | Broadcast receiver | |
KR101625675B1 (en) | Digital broadcasting receiver capable of selecting multi channel | |
KR20020018231A (en) | Multi digital broadcasting receiver | |
KR100279119B1 (en) | Method for selecting channel in digital television receiver and device thereof | |
KR101218981B1 (en) | Multi-function hybrid tuner apparatus | |
KR200159618Y1 (en) | Audio/video signal monitor output apparatus for television | |
KR20080056450A (en) | Dual tuner module | |
KR20060111779A (en) | Method for auto tunning best channel among same broadcast | |
KR101253163B1 (en) | A receiver for broadcasting | |
JP2006135600A (en) | Digital television tuner | |
KR100828894B1 (en) | Method for auto selecting of channel in a digital broadcast system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant |