Copyright does not protect an idea or concept in the abstract. Having an idea itself is not enough; you must have expressed your idea in a fixed medium (i.e. text, recording, drawing etc…).
Also titles, names, slogans, or other short word combinations do not fall under copyright protection; these require trademark protection. Nor does it apply to plots, characters, news or facts.
For example, you may have an idea for a board or computer game, it is not possible to protect the idea of the game, that is, the way the game is played, but you can protect the design or the software code and the text of the rules.
Also, copyright does not protect shapes, patterns, ornamentations or configurations (or any combination of these things) as applied to a product.