Patent Application
20130229572
1. Field
The present disclosure relates to converting image format.
2. Background
Heretofore, a digital broadcasting receiver such as a digital television and a set-top box (STB) having a digital broadcasting reception function receives digital TV broadcasting data of an Advanced Television Systems Committee (ATSC) MPEG-2 Transport Streams (TSs). The digital broadcasting receiver performs a MPEG decoding and a signal processing for the received digital TV broadcasting data, and outputs video data of high picture quality and audio data of high speech quality.
Further, a digital broadcasting receiver with a Personal Video Recording (hereinafter, referred to as PVR) function has also been developed and commercialized. The PVR can store received digital TV broadcasting data of ATSC MPEG-2 TSs in a high capacity hard disk, and reproduce the stored digital TV broadcasting data at a time desired by a user.
However, a mobile terminal such as a mobile phone, a Personal Digital Assistant (PDA) and a Digital Multimedia Broadcasting (DMB) device has a lower resolution and smaller size than those of conventional digital broadcasting format.
The above references are incorporated by reference herein where appropriate for appropriate teachings of additional or alternative details, features and/or technical background.
Accordingly, the present disclosure is directed to converting image format that substantially obviates one or more problems due to limitations and disadvantages of the related art.
An object of the present disclosure is to provide a method/device that can directly or automatically convert high resolution and large size digital TV broadcasting programs into low resolution and small size programs.
Another object of the present disclosure is to provide a digital television and method that can solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
A further object of the present disclosure is to provide a digital television and method that can convert first received data format into a different second converted data format so that the received data can be transmitted in the second format for playback in an external apparatus.
Additional advantages, objects, and features of the disclosure will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the disclosure. The objectives and other advantages of the disclosure may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
To achieve these objects and other advantages and in accordance with the purpose of the disclosure, as embodied and broadly described herein, there is provided a method for converting an image format of data comprising converting the image format of data into another image format, encoding the format changed data into a compressed data, and converting the encoded data into a file system which an external interface supports.
To further achieve the above objects in a whole or in part, according to another aspect of the disclosure, there is provided an apparatus for converting an image format of data comprising an image converter for converting parameters of the image format, an encoder for encoding the format changed data and a file system converter for changing the encoded data into a file system supported by an external interface.
It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed.
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the principle of the disclosure.
Reference will now be made in detail to the preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Embodiments according to the disclosure can be applied to various types of receivers such as STBs and digital TVs with PVR functions, which receive digital TV broadcasting data and store the received digital TV broadcasting data in a storage device such as a hard disk.
As shown in
First of all, the digital antenna 11 receives broadcast signals as a form of ATSC MPEG-2 streams by tuning the digital tuner 12 according to a user request to select a digital TV broadcasting channel. The digital tuner converts the received MPEG-2 streams into MPEG-2 Transport Streams (TSs). The demultiplxer 13 decodes the MPEG-2 TSs into high resolution (e.g., 1920*1080i pixels) data for large screen television. The video processor 15 can signal process the decoded video data to output video signals of high picture quality, and the audio processor 17 can perform signal processing and amplification for the decoded audio data to output audio signals of high speech quality. The ATSC MPEG-2 TSs of the tuned digital TV broadcasting program can also be stored in the storage 14 such as PVRs.
Moreover, the receiver can receive analog broadcasting programs by analog antenna 122 and analog tuner 123 and converts the analog signals into digital signals through the ND converter 124. The ND converted signals are processed using the same video 15, data 16 and audio processors 17.
The audio also can be converted from the audio data decoded by the demultiplexer 113, e.g., 5.1 CH Pulse Code Modulation (PCM) audio data, to data of a format that, e.g., the DMB device can support, i.e., 2 CH PCM audio data.
The encoder 127 can encode the video data converted by the video format converter 126 into, e.g., a DMB format video data according to a H.264/AVC standard. The encoder 127 also can encode the audio data converted by the video format converter 126 into, e.g., a DMB format audio data according to an ISO/IEC 14496-3 BSAC standard.
The file system converter 128 converts the encoded data by the encoder 127 into a file system that the external interface 121 supports. The external interface includes Universal Serial Bus (USB), IEEE 1394, and EPF.
The MPEG-2 TSs can be stored in the storage 114. For example, the storage 114 separately stores the format converted MPEG-2 TSs and the ATSC MPEG-2 TSs of the digital TV broadcasting format outputted from the demultiplxer 113 as different data files.
The digital tuner 112 tunes one random digital TV broadcasting channel according to a user's request. The ATSC decoder (not shown) can demodulate the audio/video signals from the antenna 111 and stores at the storage 114 the demodulated audio/video signals (S210). The video format converter 126 converts the format of the stored audio/video signals into another format of audio/video signals (S220). The encoder (127) encodes the audio/video data into a compressed data (S230). The file system converter 128 converts the encoded data into a file system which the external interface 121 supports (S240). The external interface 121 outputs the encoded data to an external device (not shown).
Any reference in this specification to “one embodiment,” “an embodiment,” “example embodiment,” etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the disclosure. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments. Furthermore, for ease of understanding, certain method procedures may have been delineated as separate procedures; however, these separately delineated procedures should not be construed as necessarily order dependent in their performance. That is, some procedures may be able to be performed in an alternative ordering, simultaneously, etc.
The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present disclosure. The present teaching can be readily applied to other types of apparatuses. The description of the present disclosure is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art. In the claims, means- plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the spirit or scope of the disclosures. Thus, it is intended that the present disclosure covers the modifications and variations of this disclosure provided they come within the scope of the appended claims and their equivalents.
By converting a high resolution, large size image format of a broadcasting program to a low resolution, small size image format, a portable device including PDA, mobile phone and DMB can save and display the high definition television quality broadcasting programs.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2006 0039573 | May 2006 | KR | national |
This application is a Continuation Application of prior U.S. patent application Ser. No. 12/299,060 filed Oct. 30, 2008, which is a National Stage application under 35 U.S.C. §365 of International Application No. PCT/KR2007/002142 filed on May 2, 2007, which claims priority under 35 U.S.C. §119 to Korean Application No. 10-2006-0039573 filed on May 2, 2006, whose entire disclosures are hereby incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 12299060 | Oct 2008 | US |
| Child | 13861806 | US |
