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US5844633A Expired / Lapsed US ⏱️ 0.0 years remaining

Channel memory device and the method therefor

Assignee: LG Electronics Inc
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Filing: 1997-01-03
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Granted: 1998-12-01
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Expires: 2017-01-03
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Abstract

Abstract A channel memory device adopted for a television or video cassette recorder and the method therefor, can increase alternatives for channels, cope with the change of broadcasting station names and allow a quick and simple channel selection. The channel memory device includes a tuner for demodulating the broadcasting signal received via antennae, an IF unit for detecting the output signal of tuner, a decoder for decoding the broadcasting data output from IF unit, E 2 PROM for storing channel data, a luminance and color signal processor for processing the output signals of IF unit and decoder, a microcomputer for controlling the channel selection and channel memory with respect to decoding and tuning the broadcasting data, and a display for displaying the broadcasting data.

Inventors

  • 👤 Tae Young Kim

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 12:01
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/40; H04N21/43; H04N21/434; H04N21/4345; H04N5/00; H04N5/44; H04N5/50; H04N21/47; H04N21/482; H04N5/76; H04N5/765; H04N5/78; H04N5/782

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 60 words
A channel memory method comprising the steps of: sequentially inputting a user's desired channel number to a channel table for each channel position (a first step); performing a tuning (a second step); comparing and sorting channel numbers so that a tuned channel is matched with the user's set channel position (a third step); and displaying sorted channels (a fourth step).
Claim 2
Dependent Claim 60 words
A channel memory method comprising the steps of: sequentially inputting a user's desired channel number to a channel table for each channel position (a first step); performing a tuning (a second step); comparing and sorting channel numbers so that a tuned channel is matched with the user's set channel position (a third step); and displaying sorted channels (a fourth step).
Claim 3
Dependent Claim 69 words
The channel memory method as claimed in claim 1, wherein said first step includes the processes of: displaying channel table in case of a tuning mode (a first process); displaying an input if a user inputs his desired channel number by moving a cursor (a second process); and repeatedly performing said first and second processes, and performing said second step if an enter key is input (a third process).
Claim 4
Dependent Claim 121 words
The channel memory method as claimed in claim 1, wherein said third step includes the processes of: comparing a user's selected channel number and the channel number of a tuned channel (a first process); sorting channel numbers if the user's selected channel number and the channel number of a tuned channel are not the same, and memorizing the corresponding channel number on the corresponding channel position (a second process); immediately memorizing the corresponding channel number on the corresponding channel position if the user's selected channel number and the channel number of a tuned channel are the same (a third process); and performing said first, second and third processes depending on a memory capacity to complete said sorting process (a fourth process).

References Cited (Backward Citations)

EP0219703A1 Cited
US4914517A Cited
US4959720A Cited
US5068734A Cited
US5068734B1 Cited
US5191423A Cited
GB2264409A Cited
US5512955A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-11-30 2002-06-01 2002-12-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-11-30 2006-06-01 2006-12-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-11-30 2010-06-01 2010-12-01 $7700.00 Window Closed / Lapsed

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