Portable radio information terminal apparatus, display screen operating method, recording medium, and microcomputer apparatus

A portable radio information terminal apparatus for executing information control of a multilayer structure having a plurality of layers including a top layer, a middle layer, and a lower layer on which a plurality of messages terminated at said portable radio information terminal apparatus are placed, said top layer thereof being one of a main menu screen displaying layer and a standby screen displaying layer, for executing operations including screen displaying on each of said plurality of layers and including inputting means for executing a command inputting operation and an image display device for screen displaying, said portable radio information terminal apparatus comprising:

• command input processing means for determining whether an input signal supplied from said inputting means is generated by said command inputting operation;
• movement control means for measuring, based on a decision by said command input processing means, an activation time of said input signal;
• and
• upper-layer moving means for executing, based on a command issued by said movement control means, movement among said plurality of layers, wherein
• when said activation time exceeds a predetermined time said movement control means instructs said upper-layer moving means to move said screen displaying from said lower layer to said top layer, and
• when said activation time is less than said predetermined time said movement control means instructs said upper-layer moving means to move said screen displaying from said lower layer to said middle layer.

A recording medium for recording a plurality of programs readable and executable by a computer, comprising:

• command input processing means for determining whether an input signal is generated in response to a command inputting operation while a portable radio information terminal apparatus having an image display device and an inputting device and executing information control on a multilayer structure having a plurality of layers including a top layer, a middle layer, and a lower layer, said top layer being one of a main menu displaying layer and a standby screen displaying layer;
• movement control means for measuring, based on a decision by said command input processing means, an activation time of said input signal;
• and
• upper-layer moving means for executing, based on a command issued by said movement control means, movement among said plurality of layers, wherein
• when said activation time exceeds a predetermined time said movement control means instructs said upper-layer moving means to move said screen displaying from said lower layer to said top layer, and
• when said activation time is less than said predetermined time said movement control means instructs said upper-layer moving means to move said screen displaying from said lower layer to said middle layer.

A microcomputer apparatus, comprising:

• a central processing unit;
• recording means for recording a procedure readable and executable by said central processing unit as a program;
• and
• communication means connected at least to said central processing unit and said recording means, including data transmitting means connectable from an outside of said microcomputer apparatus, and for providing a capability of transmitting a signal generated from a processing operation of said central processing unit with an external device through one of a cable and a radio wave,
• wherein said recording means records said procedure including at least
• command input processing means for determining whether an input signal is generated in response to a command inputting operation while a portable radio information terminal apparatus having an image display device and an inputting device and executing information control on a multilayer structure having a plurality of layers including a top layer, a middle layer, and a lower layer, said top layer being one of a main menu displaying layer and a standby screen displaying layer;
• movement control means for measuring, based on a decision by said command input processing means, an activation time of said input signal, and
• upper-layer moving means for executing, based on a command issued by said movement control means, movement among said plurality of layers, wherein
• when said activation time exceeds a predetermined time said movement control means instructs said upper-layer moving means to move said screen displaying from said lower layer to said top layer, and
• when said activation time is within said predetermined time said movement control means instructs said upper-layer moving means to move said screen displaying from said lower layer to said middle layer.