Digital TV Preference Channel One-Touch Selection

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Solution Overview

Problem

Conventional digital TV systems require multiple key inputs for channel selection, making it inconvenient and cumbersome, especially when trying to access frequently watched channels, and often overlap video content with on-screen displays.

Innovation Solution

A method and system that allows users to pre-register preference channels on a remote controller, enabling one-touch selection of these channels by switching to a preference mode and using specific keys for direct access, with optional assignment of channel names or symbols for easy identification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional channel selection methods are used (sequential key input, number key input, or OSD cursor selection), then channel changing function is achieved, but the operation becomes cumbersome requiring multiple key inputs and time consumption increases

Engineering Contradiction:
Improvechannel selection operationVSAvoidtime for channel selection
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-registering frequently watched channels in the DTV system before actual channel selection is needed. Users can register preference channels in advance, and the system stores these channel numbers and corresponding key assignments. When channel selection is needed, the pre-registered channels are immediately available for one-touch selection, eliminating the need for multiple key inputs or OSD navigation during the actual channel change operation.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If OSD cursor selection method is used for channel changing, then direct channel selection is possible, but video content is overlapped by on-screen display reducing viewing quality

Engineering Contradiction:
Improvechannel selection operationVSAvoidvideo overlap with OSD
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the channel selection interface from the video display area by implementing channel selection through remote controller keys that directly change channels without displaying OSD cursors or menus on the screen. The channel selection function is separated from the video output, allowing users to select channels using remote control keys while the video content remains fully visible without any OSD overlap.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If multiple key inputs are required for channel selection, then channel selection function is achieved, but device complexity and operation difficulty increase

Engineering Contradiction:
Improvechannel selection functionalityVSAvoidkey input procedure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-registering frequently watched channels in the DTV system before actual channel selection is needed. Users can register preference channels in advance, and the system stores these channel numbers and corresponding key assignments. When channel selection is needed, the pre-registered channels are immediately available for one-touch selection, eliminating the need for multiple key inputs or OSD navigation during the actual channel change operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements multi-functionality by enabling remote controller keys to serve dual purposes: standard keys for general DTV control functions and the same keys for direct preference channel selection when preference mode is activated. This allows the remote controller to adapt its functionality based on the selected mode, providing both standard channel browsing and quick-access preference channel selection without requiring additional hardware or complex procedures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7567305B2Method for selecting preference channel and digital TV using the same
Publication Date: 2009.07.28 LG ELECTRONICS INC
  • US7567305B2 patent drawing
  • US7567305B2 patent drawing
  • US7567305B2 patent drawing

AI summary

A method for selecting preference channels comprising the steps of initializing a digital TV(DTV) system to set an idle state of a general mode in which a channel is selected through multi-stage-input procedures; registering a preference channel set including at least one preference channel through which a user most-frequently watch DTV, the registered preference channels corresponding to specific keys, respectively; c) switching current general mode to a preference mode; and d) selecting one channel of the registered preference channel set through the one-touch input of the specific key corresponding to the one channel, in the switched preference mode.