US6504826B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital broadcasting receiver
Assignee: Maxell Ltd
•
Filing: 1999-08-23
•
Granted: 2003-01-07
•
Expires: 2019-08-23
Abstract
Abstract In a digital broadcasting receiver, an identification information of the image or audio signal detected from the received digital information, and an identification information stored in an identification information memory means are compared one after another. The image/audio mute means is controlled not to output a disordered image/audio signal on the basis of the comparison result. On the basis of the comparison result, the viewer is informed by the identification information output means that resolution/quality of the received image/audio signal is changed. The identification information showing the image resolution and audio quality is inserted into digital information, and the digital information with the identification information is transmitted in a digital broadcasting transmitter.
Inventors
- 👤 Toshihiro Kato
- 👤 Kenji Katsumata
- 👤 Takanori Eda
- 👤 Takumi Okamura
- 👤 Shigeru Yoneda
- 👤 Masaru Nanki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:18
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N5/46; H04N21/00; H04N21/40; H04N21/41; H04N21/426; H04N21/43; H04N21/434; H04N21/4348; H04N21/442; H04N21/44209; H04N21/47; H04N5/60; H04N5/602; H04N7/00; H04N7/01; H04N7/0117; H04N7/0122
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
65 words
A digital broadcasting receiver for receiving a multiplexed signal having at least user's data and identification information related to quality of the user's data, the receiver comprising, a demultiplexer, decoder, and controller, the digital broadcast receiver comprising: a mode detection unit extracting the identification information from demultiplexed desired data, and a mute unit preventing decoded data from outputting in response to detected change in quality.
Claim 2
Dependent Claim
65 words
A digital broadcasting receiver for receiving a multiplexed signal having at least user's data and identification information related to quality of the user's data, the receiver comprising, a demultiplexer, decoder, and controller, the digital broadcast receiver comprising: a mode detection unit extracting the identification information from demultiplexed desired data, and a mute unit preventing decoded data from outputting in response to detected change in quality.
Claim 3
Dependent Claim
84 words
A digital broadcasting receiver for receiving a multiplexed signal having at least user's data and identification information related to quality of the user's data, said receiver comprising: demultiplexing means for extracting desired data from the multiplexed signal; means for extracting the identification information from the demultiplexed desired data; means for detecting a change in quality based on the identification information; means for decoding the demultiplexed desired data; mute means for preventing the decoded data from outputting in response to the detected change in quality.
Claim 4
Dependent Claim
84 words
A digital broadcasting receiver for receiving a multiplexed signal having at least user's data and identification information related to quality of the user's data, said receiver comprising: demultiplexing means for extracting desired data from the multiplexed signal; means for extracting the identification information from the demultiplexed desired data; means for detecting a change in quality based on the identification information; means for decoding the demultiplexed desired data; mute means for preventing the decoded data from outputting in response to the detected change in quality.
Claim 5
Dependent Claim
33 words
The receiver of claim 2 , wherein the mute means comprises: means for controlling the decoding means to stop decoding and to output predetermined data, in response to the detected change in quality.
Claim 6
Dependent Claim
61 words
The receiver of claim 2 , wherein the mute means comprises: OSD means for generating OSD data to be synthesized with the decoded data; and means for controlling the OSD means to synthesize the OSD data with the decoded data for preventing the decoded data from being displayed on a external monitor screen, in response to the detected change in quality.
Claim 7
Dependent Claim
41 words
The receiver of claim 2 , wherein the mute means comprises: means for switching the decoded data to predetermined mute data; and means for controlling the switching means to output the mute data in response to the detected change in quality.
Claim 8
Dependent Claim
13 words
The receiver of claim 3 , wherein the user's data is image data.
Claim 9
Dependent Claim
13 words
The receiver of claim 3 , wherein the user's data is audio data.
Claim 10
Dependent Claim
21 words
The receiver of claim 3 , wherein the output predetermined data is output freezing image data which has already been decoded.
Claim 11
Dependent Claim
28 words
The receiver of claim 3 further comprising: restarting means for controlling the mute means to restart outputting the decoded data, when the demultiplexed desired data is decoded normally.
Claim 12
Dependent Claim
28 words
The receiver of claim 4 , wherein the controlling means further controls the OSD means to generate the OSD data for informing user of changing the image quality.
Claim 13
Dependent Claim
21 words
The receiver of claim 4 further comprising: means for stopping the decoding means in response to the detected change in quality.
Claim 14
Dependent Claim
28 words
The receiver of claim 4 further comprising: restarting means for controlling the mute means to restart outputting the decoded data, when the demultiplexed desired data is decoded normally.
Claim 15
Dependent Claim
13 words
The receiver of claim 4 , wherein the user's data is image data.
Claim 16
Dependent Claim
13 words
The receiver of claim 4 , wherein the user's data is audio data.
Claim 17
Dependent Claim
21 words
The receiver of claim 5 further comprising: means for stopping the decoding means in response to the detected change in quality.
Claim 18
Dependent Claim
28 words
The receiver of claim 5 further comprising: restarting means for controlling the mute means to restart outputting the decoded data, when the demultiplexed desired data is decoded normally.
Claim 19
Independent Claim
68 words
A method for receiving a multiplexed signal having at least user's data and identification information related to quality of the user's data, said method comprising: extracting desired data from the multiplexed signal; extracting the identification information from the demultiplexed desired data; detecting a change in quality based on the identification information; decoding the demultiplexed desired data; preventing the decoded data from outputting upon detecting a change in quality.
Claim 20
Independent Claim
68 words
A method for receiving a multiplexed signal having at least user's data and identification information related to quality of the user's data, said method comprising: extracting desired data from the multiplexed signal; extracting the identification information from the demultiplexed desired data; detecting a change in quality based on the identification information; decoding the demultiplexed desired data; preventing the decoded data from outputting upon detecting a change in quality.
Claim 21
Dependent Claim
25 words
The method of claim 17 , wherein the preventing step comprises: stopping decoding and outputting predetermined data, in response to the detected change in quality.
Claim 22
Dependent Claim
51 words
The method of claim 17 , wherein the preventing step comprises: generating OSD data to be synthesized with the decoded data; and synthesizing the OSD data with the decoded data to prevent the decoded data from being displayed on a external monitor screen, in response to the detected change in quality.
Claim 23
Dependent Claim
32 words
The method of claim 17 , wherein the preventing step comprises: switching the decoded data to predetermined mute data; and outputting the mute data in response to the detected change in quality.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-01-06 | 2006-07-08 | 2007-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-01-06 | 2010-07-08 | 2011-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-01-06 | 2014-07-08 | 2015-01-07 | $7700.00 | Window Closed / Lapsed |