Portable telephone with broadcast receiver

• US 7,787,922 B2
• Filed: 10/28/2005
• Issued: 08/31/2010
• Est. Priority Date: 10/28/2004
• Status: Expired due to Fees

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Hashigaya, Atsuhiko, Koshi, Masashi, Yamazaki, Yukari, Saito, Yutaka, Sasaki, Hiroyuki, Kakitsu, Haruhiko, Nagano, Kenya
• Primary Examiner(s): Kincaid; Lester
• Assistant Examiner(s): SHEDRICK, CHARLES TERRELL
• Application Number:
  US11/577,897
• Publication Number:
  US 20090131129A1
• Time in Patent Office: 1,768 Days
• Field of Search: 455/574, 455/575.7, 455/575.3, 381/384, 343/702
• US Class Current: 455/575.7
• CPC Class Codes: H01Q 1/084 Pivotable antennas
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
• CPC Class Codes: H04N 2007/145 Handheld terminals
• CPC Class Codes: H04N 7/142 Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q

Abstract

To provide a cell phone equipped with a broadcast receiver that delivers a high receiving sensitivity and antenna performance in various usage states.

A loop element 12 as an antenna for receiving television broadcast is arranged in a range (c) of an upper end portion of an upper housing 1. An end part of an upper circuit board 6 is matched with a portion shown by (a) so that a conductor other than the antenna element does not exist in the range (c). A monopole element 19 for cell phone communication is arranged at a lower end portion of a lower housing 2.

Claims

1. A cell phone equipped with a broadcast receiver comprising:

a first housing;

a second housing;

a hinged part for rotatably connecting the first housing and the second housing;

a loop element comprising a first broadcast receiving antenna element provided at an end of the first housing opposite to an end where the hinged part is connected;

a cell phone communication antenna element provided at an end of the second housing opposite to an end where the hinged part is connected; and

a changing unit for changing resonance frequency of one of;

(1) the first broadcast receiving antenna element to a frequency higher than a radio frequency band of cell phone communications in case the cell phone communications is given a priority; and

(2) the cell phone communication antenna element to a frequency higher than a radio frequency band of television broadcasts in case the television broadcasts receiving performance is given a priority.

2. The cell phone equipped with a broadcast receiver according to claim 1, wherein

the first broadcast receiving antenna element comprises a magnetic field antenna and

the cell phone communication antenna element comprises an electric field antenna.

3. The cell phone equipped with the broadcast receiver according to claim 1, wherein

a circuit board and a conductor component are arranged closer to the hinged part than the first broadcast receiving antenna element in the first housing, and

a circuit board and a conductor component are arranged closer to the hinged part than the cell phone communication antenna element in the second housing.

4. The cell phone equipped with the broadcast receive according to claim 1, wherein one end of a power feeding part of the loop element is connected to a section corresponding to high frequency ground potential of the first housing.

5. The cell phone equipped with the broadcast receiver according to claim 1, wherein the cell phone communication antenna element comprises a monopole element.

6. The cell phone equipped with the broadcast receiver according to claim 1 further comprising:

a second broadcast receiving antenna element provided in close proximity to the end of the second housing where the hinged part is connected; and

a selecting unit for selecting either the first broadcast receiving antenna element or the second broadcast receiving antenna element or a diversity reception unit for performing diversity reception.

7. The cell phone equipped with the broadcast receiver according to claim 6, wherein

the first broadcast receiving antenna element comprises a magnetic field antenna, and

the second broadcast receiving antenna comprises an electric field antenna.

8. The cell phone equipped with the broadcast receiver according to claim 7, wherein the second broadcast receiving antenna element is a telescopic meander antenna or a helical antenna.

9. The cell phone equipped with the broadcast receiver according to claim 6, further comprising:

an earphone cable antenna comprising a third broadcast receiving antenna element; and

wherein the selecting unit selecting one of the first broadcast receiving antenna element, the second broadcast receiving antenna element and the earphone cable antenna.

10. The cell phone equipped with the broadcast receiver according to claim 9 further comprising a diversity reception unit for performing diversity reception by using all or any two of the first broadcast receiving antenna element, the second broadcast receiving antenna element and the earphone cable antenna.