Portable telephone set

Claim 2

A vibration unit as claimed in Claim 1 further comprising vibration stopping means (32) connected to said holding switch and said vibrator and responsive to said operation of the holding switch for stopping vibration of said vibrator.

Claim 3

A vibration unit (12) for use in combination with a portable telephone apparatus (11) having a holding mode in which connection is suspended between said portable telephone apparatus and a base station (13) assigned to said portable telephone apparatus transmitting a reception information signal in response to reception of an incoming call signal directed to said portable telephone apparatus, characterized in that said vibration unit comprises a vibrator (29), a holding switch (31) for producing a switch operation signal when said holding switch is operated, a unit radio section (27) for receiving said reception information signal to produce a unit reception signal and for transmitting a holding indication signal to said portable telephone apparatus, said holding indication signal causing said portable telephone apparatus to be placed in said holding mode, and a unit control section (27) connected to said vibrator, said holding switch, and said unit radio section for controlling operation of said vibrator in response to said unit reception signal and said switch operation signal and for controlling said unit radio section in response to said switch operation signal to make said unit radio section transmit said holding indication signal towards said portable telephone apparatus.

Claim 4

A vibration unit as claimed in any preceding claim, wherein said reception information signal carries reception information, said vibration unit further comprising unit displaying means (28) connected to said unit control section for displaying said reception information.

Claim 5

A vibration unit (12) for use in combination with a portable telephone apparatus (11) transmitting a reception information signal when supplied with an incoming call signal directed to said portable telephone apparatus, characterized in that said vibration unit comprises unit receiving means (27, 32) for receiving said reception information signal, a vibrator (29) connected to said unit receiving means for vibrating when said receiving means receives said reception information signal, a unit display section (28) connected to said unit receiving means for displaying reception information relating to said reception information signal, signal producing means (32) for producing a holding indication signal which is for indicating that said incoming call is to be placed in a holding mode, and unit transmitting means (27, 32) connected to said signal producing means for transmitting said holding indication signal to said portable telephone apparatus.

Claim 6

A portable telephone apparatus (11) for use in communication with a base station (13) assigned to said portable telephone apparatus, said portable telephone apparatus having a holding mode in which connection is suspended between said portable telephone apparatus and said base station, characterized in that said portable telephone apparatus comprises first receiving means (16) for receiving an incoming call signal directed to said portable telephone apparatus from said base station, second receiving means (17) for receiving a holding indication signal transmitted from an external area of said portable telephone apparatus, and holding means (24) connected to said first and said second receiving means and responsive to said holding indication signal for placing said telephone apparatus in said holding mode when said first receiving means receives said incoming call signal.

Claim 7

A portable telephone apparatus as claimed in Claim 6, wherein said incoming call signal has a first frequency band, said holding indication signal having a second frequency band different from said first frequency band, and wherein said first receiving means is adapted to said first frequency band, said second receiving means being adapted to said second frequency band.

Claim 8

A portable telephone apparatus as claimed in Claim 6, wherein said incoming call signal has a first frequency band, said holding indication signal having a second frequency band different from said first frequency band, and wherein said first receiving means comprises: a first filter (51) having said first frequency band; and a first radio section (16) connected to said first filter and said holding means for receiving said incoming call signal, said second receiving means comprising: a second filter (52) having said second frequency band; and a second radio section (17) connected to said second filter and said holding means for receiving said holding indication signal.

Claim 9

A portable telephone apparatus as claimed in Claim 6, wherein said incoming call signal has a first frequency band, said holding indication signal having a second frequency band different from said first frequency band, and wherein said first and said second receiving means distinguish between said incoming call and said holding indication signals with reference to a difference between said first and said second frequencies, respectively.

Claim 10

A portable telephone apparatus as claimed in Claim 6, wherein said second receiving means further receives an identification code together with said holding indication signal, said first and said second receiving means distinguishing between said incoming call and said holding indication signals with reference to the presence or absence of said identification code.

Claim 11

A combination of a portable telephone (11) apparatus and a vibration unit (12), characterized in that said portable telephone apparatus comprises first receiving means (16, 24) for receiving an incoming call signal directed to said portable telephone apparatus from a base station which is assigned to said portable telephone apparatus, first transmitting means (16, 24) connected to said first receiving means for transmitting a reception information signal when said first receiving means receives said incoming call signal, second receiving means (17, 24) for receiving a holding indication signal transmitted from said vibration unit towards said portable telephone apparatus, and second transmitting means (17, 24) connected to said second receiving means for transmitting a holding signal towards said base station when said second receiving means receives said holding indication signal, said base station being responsive to said holding signal to cause said telephone apparatus to be placed in a holding mode in which connection is suspended between said portable telephone apparatus and said base station, and that said vibration unit comprises unit receiving means (27, 32) for receiving said reception information signal, a vibrator (29) connected to said unit receiving means for vibrating when said unit receiving means receives said reception information signal, a holding switch (31), and unit transmitting means (27, 32) connected to said holding switch for transmitting said holding indication signal to said portable telephone apparatus in response to operation of said holding switch.