Position sense radio carry case apparatus and method of using same

• US 5,542,105 A
• Filed: 10/07/1994
• Issued: 07/30/1996
• Est. Priority Date: 10/07/1994
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Pierson, Paul L., Higgins, Roger G., Finch, Steven J.
• Primary Examiner(s): Pham, Chi H.
• Application Number:
  US08/283,321
• Time in Patent Office: 662 Days
• Field of Search: 155/89, 155/90, 155/347-351, 379/61, 379/420, 379/422, 379/424, 379/426, 379/428, 379/440
• US Class Current: 455/575.1
• CPC Class Codes: H04B 1/3877 Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters
• CPC Class Codes: H04B 1/3888 Arrangements for carrying or protecting transceivers
• CPC Class Codes: H04M 1/04 Supports for telephone transmitters or receivers
• CPC Class Codes: H04M 1/6041 Portable telephones adapted for handsfree use
• CPC Class Codes: H04M 1/7246 by connection of exchangeable housing parts

Abstract

A device used with a portable radio (10) and associated carrying case (30) which can automatically adjust radio control functions such as audio output, DTMF tone level mode telephone hang-up or illumination levels of the radio depending on the radio'"'"'s position in relation to the carrying case. The radio (10) includes a hall effect switch (14) used to signal the a microprocessor within the radio when actuated. A magnet (38) located within the case (30) actuates the hall effect switch (14) when the radio (10) is placed within the case (30). The microprocessor is then signaled to change radio function aiding the user in the operation of the radio (10) depending on the its position.

Claims

1. An apparatus for sensing the position of a portable radio within a carrying case comprising:

a hall effect switch attached to a portable radio for controlling the audio level from a speaker within said portable radio; and

at least one magnet located with said carrying case for actuating said hall effect switch when said switch is in proximity to said magnet to adjust the audio level from said speaker from a fist audible level to a second audible level.

2. An apparatus according to claim 1, wherein said hall effect switch is connected to a microprocessor located within said radio.

3. An apparatus for controlling the audio output level of a portable radio comprising:

at least one hall effect switch attached to the radio for controlling the level of audio output between a first audible level and a second audible level;

at least one magnet means attached to a carrying case for actuating said hall effect switch, said carrying case sized to fit said radio.

4. An apparatus according to claim 3, wherein said at least one magnet means is aligned with said hall effect switch when said radio is inside said carrying case.

5. An apparatus according to claim 3, wherein said level of audio output is greater when said radio is inserted within said carrying case.

6. An apparatus according to claim 3, wherein said at least one hall effect switch also controls the audio level heard from a DTMF tone pad located on said radio.

7. A carrying case used with a portable radio comprising:

a housing including a support surface and a plurality of frictional support members for securing said radio to said support surface; and

at least one magnet attached to at least one of said frictional support members for providing a magnetic field to actuate a hall effect switch located within said radio wherein said hall effect switch controls the audible level of said radio is speaker between a first audible level and a second audible level.

8. A carrying case according to claim 7, wherein said magnet is substantially aligned with said hall effect switch when said radio is positioned within said frictional support members.

9. A method of automatically adjusting the audio level of a portable radio between first audible level and a second audible level when using the radio with a radio carrying case comprising the steps of:

positioning a hall effect switch within said radio for controlling a microprocessor;

moving said radio into a magnetic field located within said carrying case;

actuating said hall effect switch in response to said magnetic field; and

signaling the microprocessor of the portable radio upon actuation of said hall effect switch where said microprocessor adjusts the audio level to said first audible level when said portable radio is removed from said carrying case and to said second audible level when said portable radio is inserted within said carrying case.

10. A method according to claim 9, wherein said microprocessor further adjusts the audio tone level of a DTMF tone pad located on said radio.

11. A method according to claim 9, wherein said microprocessor further adjusts the illumination level of internal lighting of said radio.

12. A method according to claim 9, wherein said microprocessor further altering the mode of operation of the radio.

13. A method according to claim 9, wherein said moving step further includes the step of substantially aligning said hall effect switch with at least one magnet located within said carrying case.