Radiotelephone with user perceivable visual signal quality indicator

• US 5,950,139 A
• Filed: 10/30/1997
• Issued: 09/07/1999
• Est. Priority Date: 10/30/1997
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Korycan, George M.
• Primary Examiner(s): Trost, William G.
• Assistant Examiner(s): Trinh, Sonny
• Application Number:
  US08/961,170
• Time in Patent Office: 677 Days
• Field of Search: 455/226.2, 455/226.3, 455/226.4, 455/566, 455/575, 455/90, 455/403, 455/550, D14/137, D14/138, 345/33, 345/39, 345/44, 345/169, 345/901
• US Class Current: 455/566
• CPC Class Codes: H04B 17/23 Indication means, e.g. displays, alarms, audible means
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04M 1/22 Illumination; Arrangements for improving the visibility of characters on dials
• CPC Class Codes: H04M 1/724 User interfaces specially adapted for cordless or mobile telephones

Abstract

A portable radiotelephone (100) has a signal quality indicator (110) disposed in a location on an outer surface of a housing thereof so that the indicator is within a peripheral view of the user when an earpiece (210) of the radiotelephone is held to a user'"'"'s ear. In the peripheral vision of the user, the signal quality indicator (110) indicates a quality of the signal received by receiver (130) of the portable radiotelephone handset.

Claims

1. A portable radiotelephone, comprising:

a receiver for receiving a radio signal;

a signal quality determining circuit operatively coupled to the receiver for determining a signal quality of the radio signal received by the receiver;

a display driver operatively coupled to the signal quality determining circuit for providing a display signal based on the signal quality;

a telephone earpiece operatively coupled to produce audible sound based on the radio signal received by the receiver;

a radiotelephone housing for housing the receiver and the telephone earpiece and adapted to be held to a users head with the earpiece adjacent to an ear of the user; and

a signal quality indicator disposed on an outer surface of the radiotelephone housing within the peripheral vision of the user when the telephone earpiece is held to a users head with the earpiece adjacent to an ear of the user and operatively coupled to receive the display signal from the display driver.

2. A portable radiotelephone according to claim 1, wherein the signal quality determining circuit assesses the signal strength of the radio signal.

3. A portable radiotelephone according to claim 1, wherein the signal quality determining circuit assesses at least the bit error rate of the radio signal.

4. A portable radiotelephone according to claim 1, wherein the signal quality indicator is positioned on a side of the outer surface of the radiotelephone within the peripheral vision of the user.

5. A portable radiotelephone according to claim 1, wherein the signal quality indicator is positioned near a bottom edge of the outer surface of the radiotelephone within the peripheral vision of the user.

6. A portable radiotelephone according to claim 1,

wherein the radiotelephone housing comprises a first substrate containing the telephone earpiece and a second substrate hinged to the first substrate;

and

wherein signal quality indicator is positioned on a surface of the second substrate within the peripheral vision of the user when the second substrate is hinged open relative to the first substrate.

7. A portable radiotelephone according to claim 6, wherein the signal quality indicator is positioned on a side edge of the second substrate within the peripheral vision of the user when the second substrate is hinged open relative to the first substrate.

8. A portable radiotelephone according to claim 6, wherein the signal quality indicator is positioned on a bottom edge of the second substrate within the peripheral vision of the user when the second substrate is hinged open relative to the first substrate.

9. A portable radiotelephone according to claim 1, wherein a magnitude of the signal quality indicator increases as the signal quality diminishes.

10. A portable radiotelephone according to claim 9, wherein a brightness of the signal quality indicator increases as the signal quality diminishes.

11. A portable radiotelephone according to claim 1, wherein the signal quality indicator comprises a plurality of indicator lights.

12. A portable radiotelephone according to claim 11, wherein an illuminated number of the plurality of indicator lights increases as the signal quality diminishes.

13. A portable radiotelephone according to claim 11, wherein the plurality of indicator lights of the signal quality indicator has at least two colors.

14. A portable radiotelephone according to claim 13, wherein the colors of the plurality of indicator lights include green and red.

15. A portable radiotelephone according to claim 1, wherein a color of the signal quality indicator changes as the signal quality diminishes.

16. A portable radiotelephone according to claim 15, wherein the color of the signal quality indicator changes by starting at green for the best signal quality and ends at red for the worst signal quality.

17. A portable radiotelephone according to claim 1, further comprising an antenna requiring a substantially vertical orientation during radio reception.

18. A portable radiotelephone according to claim 1, wherein the antenna is rotatably coupled to the radiotelephone housing.

19. A portable radiotelephone according to claim 1, wherein the signal quality indicator comprises a luminous indicator which emits light.

20. A portable radiotelephone according to claim 1, wherein the display driver causes the signal quality indicator to flash at a rate dependent on the signal quality.

21. A portable radiotelephone according to claim 1, wherein the display driver causes the signal quality indicator to not indicate a signal quality when the radiotelephone is on in a standby mode but not in a telephone call.

22. A portable radio device, comprising:

a receiver for receiving a radio signal;

a signal quality determining circuit operatively coupled to the receiver for determining a signal quality of the radio signal received by the receiver;

a display driver operatively coupled to the signal quality determining circuit for providing a display signal based on the signal quality;

an earpiece operatively coupled to produce audible sound based on the radio signal received by the receiver; and

a signal quality indicator disposed within the peripheral vision of the user when the portable radio is in use and operatively coupled to receive the display signal from the display driver, wherein a color of the signal quality indicator changes as the signal quality diminishes.

23. A portable radiotelephone according to claim 22, wherein the color of the signal quality indicator changes by starting at green for the best signal quality and ends at red for the worst signal quality.