Communication terminal apparatus

• US 20060194613A1
• Filed: 04/04/2006
• Published: 08/31/2006
• Est. Priority Date: 11/09/2001
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Takizawa, Kazuyuki, Nishimoto, Junichi, Masuda, Kozo, Arai, Ikuya
• Granted Patent: US 7,774,021 B2
• Time in Patent Office: Days
• US Class Current: 455/556.1
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G09G 2330/022 in absence of operation, e.g. no data being entered during a predetermined time
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0245 using open/close detection
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04M 1/72427 for supporting games or graphical animations
• CPC Class Codes: H04M 1/7243 with interactive means for internal management of messages
• CPC Class Codes: H04M 1/72442 for playing music files
• CPC Class Codes: H04M 2250/16 including more than one display unit
• CPC Class Codes: H04W 52/027 by controlling a display operation or backlight unit
• CPC Class Codes: H04W 52/0274 by switching on or off the equipment or parts thereof
• CPC Class Codes: H04W 52/0296 switching to a backup power supply
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A communication terminal apparatus which improves the a quality of an additional function such as image processing, music reproduction etc. over repressing power consumption is provided. The communication terminal apparatus has a transmission and reception unit adapted to transmit or receive a signal including a voice signal or an image signal, a decode processing unit adapted to decode a received signal, a first control circuit for controlling the transmission and reception unit and the decode processing unit, a second control circuit for processing an image signal which is outputted from the decode processing unit, a first power supply unit adapted to supply electric power to the first control circuit, and a second power supply unit adapted to supply electric power to the second control circuit, and in case that the communication terminal apparatus is not operated for a given length of time, the second power supply unit reduces electric power to the second control circuit.

Claims

1. A communication terminal apparatus comprising:

a transmission and reception part which transmits or receives a signal including a voice signal or an image signal;

a decode processing part which decodes the signal received by the transmission and reception part;

a first control circuit which controls the transmission and reception part and the decode processing part;

a second control circuit which processes an image signal which is outputted from the decode processing part;

a first power supply part which supplies electric power to the first control circuit; and

a second power supply part which supplies electric power to the second control circuit.

2-11. -11. (canceled)