Endoscope system

Claim 2

An endoscope system characterized by comprising: a memory (6) in which control data is stored; a chip selector (8) for applying a chip enabling signal to the memory (6) to hold the memory in an enabling state in which the control data can be read out from the memory (6); means (10, 12, 14, 16, 20) for producing setting signals; a processor (2) fetching the setting signals as instruction commands and reading out the control data in accordance with the setting signals, said processor (2) having a first terminal (Ml) from which a first logic signal is delivered while the instruction commands are being fetched, and a second terminal (RD) from which a second logic signal is delivered while the control data is being read out from the memory (6); a pump (30); means (22, 24, 26, 28, 32) for adjusting power supplied to the pump (30) in accordance with the control data; means (36, 37, 38, 40) for producing an alarm logic signal while the chip selector (8) is not maintaining the memory (6) in the enabling state although the first and second logic signals are being produced; and means (42, 44) for causing the adjusting means (22, 24, 26, 28, 32) to drive the pump (30) at a fixed rate in response to the alarm logic signal.

Claim 3

The endoscope system according to claim 1, characterized in that said means (10, 12, 14, 16, 20) for producing the setting signals includes means (20) for discriminating power supply.frequency and a switching circuit (10, 12, 14, 16).

Claim 4

The endoscope system according to claim 1, characterized in that said means (36, 37, 38, 40) for producing the alarm logic signal includes a logic cir- . cuit (36, 37, 38, 40) including a latch circuit (40) for latching the alarm logic signal.

Claim 5

The endoscope system according to claim 1, characterized in that said means (42, 44) for causing the pump adjusting means (22, 24, 26, 28, 32) to drive the pump (30) includes a switching element (44) to be closed in response to the alarm logic signal.

Claim 6

An endoscope system characterized by comprising: a memory (6) in which control data is stored; a chip selector (8) for applying a chip enabling signal to the memory (6) to hold the memory (6) in an enabling state in which the control data-can be read out from the memory (6); means (10, 12, 14, 16, 20) for producing setting signals; a processor (2) fetching the setting signals as instruction commands and reading out the control data in accordance with the setting signals, said processor (2) having a first terminal (Ml) from which a first logic signal is delivered while the instruction commands are being fetched, and a second terminal (RD) from which a second logic signal is delivered while the control data is being read out from the memory (6); a light source (112); means (22, 24, 26, 28, 32) for adjusting power supplied to the light source (112) in accordance with the control data; means (36, 37, 38, 40) for producing an alarm logic signal while the chip selector (8) is not maintaining the memory (6) in the enabling state although the first and second logic signals are being produced; and means (42, 44) for causing the adjusting means (22, 24, 26, 28, 32) to drive the light source (112) at a fixed rate in response to the alarm logic signal.

Claim 7

An endoscope system characterized by comprising: a memory (6) in which control data is stored; a chip selector (8) for applying a chip enabling signal to the memory (6) to hold the memory (6) in an enabling state in which the control data-can be read out from the memory (6); means (10, 12, 14, 16, 20) for producing setting signals; a processor (2) fetching the setting signals as instruction commands and reading out the control data in accordance with the setting signals, said processor (2) having a first terminal (Ml) from which a first logic signal is delivered while the instruction commands are being fetched, and a second terminal (RD) from which a second logic signal is delivered while the control data is being read out from the memory (6); a light source (112); means (22, 24, 26, 28, 32) for adjusting power supplied to the light source (112) in accordance with the control data; means (36, 37, 38, 40) for producing an alarm logic signal while the chip selector (8) is not maintaining the memory (6) in the enabling state although the first and second logic signals are being produced; and means (42, 44) for causing the adjusting means (22, 24, 26, 28, 32) to drive the light source (112) at a fixed rate in response to the alarm logic signal.

Claim 8

The endoscope system according to claim 5, characterized in that said means (10, 12, 14, 16, 20) for producing the setting signals includes means (20) for discriminating power supply frequency and a switching circuit (10, 12, 14, 16).

Claim 9

The endoscope system according to claim 5, characterized in that said means (36, 37, 38, 40) for producing the alarm logic signal includes of a logic circuit (36, 37, 38, 40) including a latch circuit (40) for latching the alarm logic signal.

Claim 10

The endoscope system according to claim 5, characterized in that said means (42, 44) for causing the adjusting means (22, 24, 26, 28, 32) to drive the light source (112) includes a switching element (44) to be closed in response to the alarm logic signal.

Claim 11

The endoscope system according to claim 5, characterized by further comprising a shutter (116) capable of being located in a source light path through which light from the light source (112) passes, and means (72, 120) for removing the shutter (116) from the source light path in response to an alarm signal.

Claim 12

The endoscope system according to claim 5, characterized by further comprising a filter (114) capable of being located in a source light path through which light from the light source (112) passes, and means (70, 118) for removing the filter (114) from the source light path in response to an alarm signal.