Portable telephone apparatus
AssigneeNEC Corporation
InventorRumi Nakano
Life of this patent
Estimating the term…
Abstract
When the portable telephone apparatus receives a termination call and a call signal (or a ringing signal), the speaker generates a ringing tone. At this point, the user hears the ringing tone and holds the ear piece to his or her ear. At this point, the speaker impedance variation detecting portion detects the variation of the impedance corresponding to the variation of the volume of the space between the speaker and the ear piece. When the impedance variation detecting portion detects the variation of the impedance, it outputs an impedance variation detection signal. When the controlling portion receives the impedance variation detection signal, it performs a response process for the termination call or a hold cancel process for a call.
Claims14
A portable telephone apparatus, comprising:
- detecting means for detecting a state that a user has closed an ear piece of a speaker to the user's ear while the apparatus is receiving a call signal;
- speaker impedance variation detection means for detecting an electrical variable impedance corresponding to a variation of a volume of a space formed between the speaker while the apparatus is receiving a call signal;
- and
- controlling means for causing the apparatus to enter into a response state upon detection of a signal that is output from said impedance variation detecting means.
A portable telephone apparatus including an ear piece and a speaker, comprising:
- detecting means for detecting a state wherein a user has closed the ear piece of the apparatus to the user's ear while the apparatus is receiving a call signal;
- and
- controlling means for causing the apparatus to enter into a response state upon a detection signal output from the detecting means,
- wherein said detecting means detects a variation of impedance due to a variation of a volume of a space between the ear piece and the speaker of the apparatus corresponding to the states before and after the user has closed the ear piece to the user's ear and outputs the detection signal.
A portable telephone apparatus including an ear piece and a speaker, comprising:
- detecting means for detecting a state wherein a user has closed the ear piece of the apparatus to the user's ear while the apparatus is receiving a call signal;
- and
- controlling means for causing the apparatus to enter into a response state upon a detection signal output from the detecting means,
- wherein the detecting means comprise a speaker portion, which speaker portion comprises a speaker, a speaker impedance variation detecting portion for detecting a variation of impedance corresponding to the variation of the volume of a space between the ear piece and said speaker corresponding to the state in which the user has held the ear piece to the user's ear;
- and
- a controlling portion for performing one of:
- a response process and a call hold cancel process, the processes corresponding to the detection signal that is output from said speaker impedance variation detecting portion.
Dependencies are inferred from the claim text.