The gate electrode of each transistor is provided by an enable line.

The broadband impedance transformer comprises a quarter wavelength matching line coupled to a directional coupler, wherein the directional coupler has the same electrical length as the quarter wavelength matching line.

  The multilayer board (2) is provided with a reception signal line (4), a transmission signal line (5), an antenna shared line (3), a matching line (6), and a ground line (7).

An impedance-matching line having a discontinuously varying line width is formed in a portion of a region of the first loop antenna.

A clamping band (29) for implosion prevention is wound on the panel (21) along the mold match line (23).

If these codes are agreed with each other, the CAM cell (10) outputs an H level signal which represents the agreement to the match line ML.

If disagreed, it outputs an L level signal which represents the disagreement to the match line ML.

The method further includes adjusting the slope of the fitting line (161) based on a response of the patient to the stimulus current.

  A wiring electrode for the inductor (L4) is inserted in the matching line (6) from the mounting electrode for the ground to the position where it combines with the antenna shared line (3).

The implant fitting line (161) represents a relationship between a number of stimulation sites (56, 58, 60) within a cochlea (150) of the patient and a number of corresponding audio frequencies.

That is, the implant fitting line (161) defines which locations along the length of the cochlea (150), when stimulated, are perceived by the patient as specific tones or frequencies.

An exemplary method of fitting a cochlear implant system (20) to a patient includes establishing an implant fitting line (161) having a slope and a position.

A mold match line (23) of the panel (21) is formed such as to be substantially coincident with the boundary between the face portion (4) and the skirt portion (5).

A match line (MATCHLINE) is coupled to each of the plurality of individual CAM cells, and is used to indicate a match status of a comparand word (104) that is compared to the stored codeword.

When the NMOS is turned off, the output from the CAM cell (10) is not transmitted to the match line ML.

The mapping scheme is adjusted based on a change in a slope of a fitting line (161), the fitting line (161) representing a relationship between the number of stimulation sites (56, 58, 60) and a number of corresponding audio frequencies.